./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.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_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/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 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:33:12,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:33:12,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:33:12,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:33:12,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:33:12,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:33:12,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:33:12,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:33:12,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:33:12,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:33:12,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:33:12,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:33:12,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:33:12,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:33:12,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:33:12,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:33:12,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:33:12,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:33:12,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:33:12,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:33:12,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:33:12,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:33:12,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:33:12,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:33:12,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:33:12,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:33:12,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:33:12,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:33:12,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:33:12,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:33:12,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:33:12,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:33:12,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:33:12,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:33:12,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:33:12,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:33:12,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:33:12,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:33:12,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:33:12,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:33:12,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:33:12,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:33:12,910 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:33:12,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:33:12,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:33:12,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:33:12,913 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:33:12,913 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:33:12,914 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:33:12,914 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:33:12,914 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:33:12,914 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:33:12,915 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:33:12,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:33:12,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:33:12,916 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:33:12,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:33:12,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:33:12,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:33:12,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:33:12,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:33:12,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:33:12,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:33:12,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:33:12,918 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:33:12,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:33:12,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:33:12,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:33:12,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:33:12,920 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:33:12,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:33:12,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:33:12,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:33:12,921 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:33:12,922 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:33:12,923 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_0fac425e-41b0-4460-9b80-aa79683fee1f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93fd59a78b989bd327b1ea5bb76e8d96f458ffc8 [2020-11-30 01:33:13,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:33:13,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:33:13,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:33:13,263 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:33:13,264 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:33:13,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2020-11-30 01:33:13,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/data/ff1b04a46/d6a9c637bba0420b869d8f1e7f16baa4/FLAG1cba792a0 [2020-11-30 01:33:14,057 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:33:14,058 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2020-11-30 01:33:14,080 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/data/ff1b04a46/d6a9c637bba0420b869d8f1e7f16baa4/FLAG1cba792a0 [2020-11-30 01:33:14,302 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/data/ff1b04a46/d6a9c637bba0420b869d8f1e7f16baa4 [2020-11-30 01:33:14,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:33:14,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:33:14,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:33:14,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:33:14,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:33:14,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:14,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768cb0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14, skipping insertion in model container [2020-11-30 01:33:14,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:14,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:33:14,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:33:14,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:33:14,811 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:33:14,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:33:14,933 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:33:14,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14 WrapperNode [2020-11-30 01:33:14,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:33:14,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:33:14,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:33:14,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:33:14,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:14,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:15,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:33:15,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:33:15,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:33:15,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:33:15,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:15,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:15,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:15,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:15,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:15,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:15,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... [2020-11-30 01:33:15,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:33:15,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:33:15,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:33:15,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:33:15,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/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 01:33:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:33:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:33:15,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:33:15,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:33:16,207 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:33:16,210 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-30 01:33:16,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:33:16 BoogieIcfgContainer [2020-11-30 01:33:16,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:33:16,214 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:33:16,214 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:33:16,218 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:33:16,219 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:33:16,219 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:33:14" (1/3) ... [2020-11-30 01:33:16,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b8576e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:33:16, skipping insertion in model container [2020-11-30 01:33:16,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:33:16,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:33:14" (2/3) ... [2020-11-30 01:33:16,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b8576e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:33:16, skipping insertion in model container [2020-11-30 01:33:16,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:33:16,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:33:16" (3/3) ... [2020-11-30 01:33:16,224 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-11-30 01:33:16,288 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:33:16,288 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:33:16,289 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:33:16,290 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:33:16,290 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:33:16,290 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:33:16,291 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:33:16,291 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:33:16,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-30 01:33:16,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 01:33:16,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:33:16,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:33:16,356 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:33:16,357 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:33:16,357 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:33:16,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-30 01:33:16,370 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 01:33:16,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:33:16,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:33:16,371 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:33:16,371 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:33:16,376 INFO L794 eck$LassoCheckResult]: Stem: 36#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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.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; 14#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 81#L858true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 7#L866true main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 9#L822true assume 0 != main_~tmp~6; 77#L796true havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 54#L886-1true [2020-11-30 01:33:16,377 INFO L796 eck$LassoCheckResult]: Loop: 54#L886-1true assume !false; 3#L526true assume test_~splverifierCounter~0 < 4; 47#L527true test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 50#L535true assume !(0 != test_~tmp~3); 51#L535-1true test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 30#L545true assume !(0 != test_~tmp___0~0); 31#L545-1true test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 11#L555true assume 0 != test_~tmp___2~0; 67#L561-2true assume !(0 != ~pumpRunning~0); 23#L592true assume !(0 != ~systemActive~0); 8#L599true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 55#L458true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 80#L880true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 54#L886-1true [2020-11-30 01:33:16,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:16,384 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:33:16,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:16,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677737254] [2020-11-30 01:33:16,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:16,681 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:16,823 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:16,865 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:33:16,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:16,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1681683787, now seen corresponding path program 1 times [2020-11-30 01:33:16,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:16,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375246026] [2020-11-30 01:33:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:16,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:16,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:16,890 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:33:16,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:16,892 INFO L82 PathProgramCache]: Analyzing trace with hash 32595151, now seen corresponding path program 1 times [2020-11-30 01:33:16,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:16,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902743880] [2020-11-30 01:33:16,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:33:17,094 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 01:33:17,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902743880] [2020-11-30 01:33:17,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:33:17,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:33:17,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109968486] [2020-11-30 01:33:17,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:33:17,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:33:17,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:33:17,267 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 6 states. [2020-11-30 01:33:17,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:33:17,538 INFO L93 Difference]: Finished difference Result 78 states and 106 transitions. [2020-11-30 01:33:17,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:33:17,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 106 transitions. [2020-11-30 01:33:17,546 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-30 01:33:17,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 99 transitions. [2020-11-30 01:33:17,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2020-11-30 01:33:17,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2020-11-30 01:33:17,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 99 transitions. [2020-11-30 01:33:17,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:33:17,556 INFO L691 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-11-30 01:33:17,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 99 transitions. [2020-11-30 01:33:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-30 01:33:17,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-30 01:33:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-11-30 01:33:17,591 INFO L714 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-11-30 01:33:17,592 INFO L594 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-11-30 01:33:17,592 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:33:17,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 99 transitions. [2020-11-30 01:33:17,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-30 01:33:17,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:33:17,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:33:17,597 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:33:17,597 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:33:17,597 INFO L794 eck$LassoCheckResult]: Stem: 221#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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.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; 198#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 199#L858 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 186#L866 main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 187#L822 assume 0 != main_~tmp~6; 190#L796 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 237#L886-1 [2020-11-30 01:33:17,598 INFO L796 eck$LassoCheckResult]: Loop: 237#L886-1 assume !false; 177#L526 assume test_~splverifierCounter~0 < 4; 178#L527 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 233#L535 assume !(0 != test_~tmp~3); 236#L535-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 212#L545 assume !(0 != test_~tmp___0~0); 213#L545-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 193#L555 assume 0 != test_~tmp___2~0; 194#L561-2 assume !(0 != ~pumpRunning~0); 204#L592 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 205#L624 assume !(0 != ~pumpRunning~0); 188#L599 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 189#L458 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 238#L880 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 237#L886-1 [2020-11-30 01:33:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:17,599 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:33:17,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:17,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830336357] [2020-11-30 01:33:17,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:17,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:17,702 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:17,720 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:33:17,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:17,722 INFO L82 PathProgramCache]: Analyzing trace with hash -619582386, now seen corresponding path program 1 times [2020-11-30 01:33:17,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:17,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683639234] [2020-11-30 01:33:17,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:17,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:17,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:17,742 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:33:17,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:17,749 INFO L82 PathProgramCache]: Analyzing trace with hash 983457140, now seen corresponding path program 1 times [2020-11-30 01:33:17,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:17,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218291959] [2020-11-30 01:33:17,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:33:17,850 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 01:33:17,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218291959] [2020-11-30 01:33:17,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:33:17,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:33:17,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320219549] [2020-11-30 01:33:17,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:33:17,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:33:17,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:33:17,992 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. cyclomatic complexity: 30 Second operand 5 states. [2020-11-30 01:33:18,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:33:18,187 INFO L93 Difference]: Finished difference Result 241 states and 345 transitions. [2020-11-30 01:33:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:33:18,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 345 transitions. [2020-11-30 01:33:18,194 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2020-11-30 01:33:18,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 241 states and 345 transitions. [2020-11-30 01:33:18,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2020-11-30 01:33:18,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2020-11-30 01:33:18,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 345 transitions. [2020-11-30 01:33:18,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:33:18,210 INFO L691 BuchiCegarLoop]: Abstraction has 241 states and 345 transitions. [2020-11-30 01:33:18,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 345 transitions. [2020-11-30 01:33:18,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 136. [2020-11-30 01:33:18,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-30 01:33:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2020-11-30 01:33:18,245 INFO L714 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2020-11-30 01:33:18,246 INFO L594 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2020-11-30 01:33:18,246 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:33:18,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 188 transitions. [2020-11-30 01:33:18,252 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2020-11-30 01:33:18,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:33:18,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:33:18,253 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:33:18,254 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:33:18,254 INFO L794 eck$LassoCheckResult]: Stem: 553#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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.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; 528#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 529#L858 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 516#L866 main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 517#L822 assume 0 != main_~tmp~6; 520#L796 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 579#L886-1 [2020-11-30 01:33:18,254 INFO L796 eck$LassoCheckResult]: Loop: 579#L886-1 assume !false; 507#L526 assume test_~splverifierCounter~0 < 4; 508#L527 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 642#L535 assume !(0 != test_~tmp~3); 640#L535-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 639#L545 assume !(0 != test_~tmp___0~0); 638#L545-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 637#L555 assume 0 != test_~tmp___2~0; 634#L561-2 assume !(0 != ~pumpRunning~0); 631#L592 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 628#L624 assume !(0 != ~pumpRunning~0); 626#L599 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 580#L458 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 581#L880 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 545#L490 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 546#L886 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 579#L886-1 [2020-11-30 01:33:18,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:18,255 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:33:18,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:18,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711536749] [2020-11-30 01:33:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:18,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:18,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:18,431 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:33:18,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:18,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1581787106, now seen corresponding path program 1 times [2020-11-30 01:33:18,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:18,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831768830] [2020-11-30 01:33:18,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:18,438 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:18,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:18,445 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:33:18,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:18,446 INFO L82 PathProgramCache]: Analyzing trace with hash 209512328, now seen corresponding path program 1 times [2020-11-30 01:33:18,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:33:18,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229621346] [2020-11-30 01:33:18,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:33:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:18,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:33:18,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:33:18,528 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:34:50,044 WARN L193 SmtUtils]: Spent 1.52 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:35:50,281 WARN L193 SmtUtils]: Spent 1.00 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:35:50,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:35:50 BoogieIcfgContainer [2020-11-30 01:35:50,754 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:35:50,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:35:50,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:35:50,756 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:35:50,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:33:16" (3/4) ... [2020-11-30 01:35:50,766 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:35:50,826 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0fac425e-41b0-4460-9b80-aa79683fee1f/bin/uautomizer/witness.graphml [2020-11-30 01:35:50,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:35:50,828 INFO L168 Benchmark]: Toolchain (without parser) took 156516.17 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 64.3 MB in the beginning and 66.4 MB in the end (delta: -2.2 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:50,828 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 94.4 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:35:50,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.02 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 60.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:50,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.87 ms. Allocated memory is still 94.4 MB. Free memory was 60.4 MB in the beginning and 57.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:50,830 INFO L168 Benchmark]: Boogie Preprocessor took 49.48 ms. Allocated memory is still 94.4 MB. Free memory was 57.4 MB in the beginning and 55.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:50,841 INFO L168 Benchmark]: RCFGBuilder took 1117.45 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 55.3 MB in the beginning and 81.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:50,842 INFO L168 Benchmark]: BuchiAutomizer took 154540.72 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 81.2 MB in the beginning and 68.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 82.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:50,846 INFO L168 Benchmark]: Witness Printer took 70.84 ms. Allocated memory is still 136.3 MB. Free memory was 68.5 MB in the beginning and 66.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:35:50,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 94.4 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 624.02 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 60.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.87 ms. Allocated memory is still 94.4 MB. Free memory was 60.4 MB in the beginning and 57.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.48 ms. Allocated memory is still 94.4 MB. Free memory was 57.4 MB in the beginning and 55.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1117.45 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 55.3 MB in the beginning and 81.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 154540.72 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 81.2 MB in the beginning and 68.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 82.6 MB. Max. memory is 16.1 GB. * Witness Printer took 70.84 ms. Allocated memory is still 136.3 MB. Free memory was 68.5 MB in the beginning and 66.4 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 136 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 154.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 153.7s. Construction of modules took 0.2s. 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, 105 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 136 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 236 SDtfs, 672 SDslu, 402 SDs, 0 SdLazy, 51 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 525]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=30277} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5341d674=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5373067c=0, NULL=30277, NULL=30286, NULL=0, NULL=0, NULL=30293, NULL=30294, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@574c7d1e=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21a1da49=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@382a30f6=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c6f2180=0, NULL=30295, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73fe1863=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=30281, NULL=0, NULL=0, NULL=30302, NULL=30305, NULL=30291, cleanupTimeShifts=4, NULL=30278, NULL=30303, NULL=30288, tmp=0, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=30285, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=30301, tmp___0=0, NULL=30290, \result=1, head=0, pumpRunning=0, NULL=30299, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=30297, NULL=30300, NULL=30280, NULL=0, NULL=0, NULL=30296, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65832c8f=0, tmp___2=53, retValue_acc=1, NULL=30279, NULL=30282, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=30284, NULL=30304, NULL=30292, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b5282e7=0, tmp___1=0, head=0, tmp=0, NULL=0, NULL=0, NULL=30283, NULL=0, NULL=0, NULL=30289, NULL=30298, NULL=30287} - 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; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L584] int pumpRunning = 0; [L585] int systemActive = 1; [L737] int cleanupTimeShifts = 4; [L813] int retValue_acc ; [L814] int tmp ; [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); [L820] tmp = valid_product() [L822] COND TRUE \read(tmp) [L516] int splverifierCounter ; [L517] int tmp ; [L518] int tmp___0 ; [L519] int tmp___1 ; [L520] int tmp___2 ; [L523] splverifierCounter = 0 Loop: [L525] COND TRUE 1 [L527] COND TRUE splverifierCounter < 4 [L533] tmp = __VERIFIER_nondet_int() [L535] COND FALSE !(\read(tmp)) [L543] tmp___0 = __VERIFIER_nondet_int() [L545] COND FALSE !(\read(tmp___0)) [L553] tmp___2 = __VERIFIER_nondet_int() [L555] COND TRUE \read(tmp___2) [L592] COND FALSE !(\read(pumpRunning)) [L599] COND TRUE \read(systemActive) [L621] int tmp ; [L624] COND FALSE !(\read(pumpRunning)) [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); [L878] tmp = isMethaneLevelCritical() [L880] COND FALSE !(\read(tmp)) [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L884] tmp___0 = getWaterLevel() [L886] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...