./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.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_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/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 6dd4e2379545062b6cfdf03e26feb426fb16a9fa .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:03:51,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:03:51,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:03:51,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:03:51,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:03:51,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:03:51,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:03:51,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:03:51,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:03:51,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:03:51,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:03:51,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:03:51,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:03:51,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:03:51,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:03:51,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:03:51,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:03:51,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:03:51,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:03:51,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:03:51,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:03:51,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:03:51,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:03:51,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:03:51,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:03:51,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:03:51,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:03:51,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:03:51,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:03:51,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:03:51,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:03:51,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:03:51,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:03:51,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:03:51,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:03:51,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:03:51,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:03:51,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:03:51,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:03:51,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:03:51,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:03:51,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:03:51,986 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:03:51,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:03:51,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:03:51,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:03:51,988 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:03:51,988 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:03:51,988 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:03:51,988 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:03:51,988 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:03:51,988 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:03:51,988 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:03:51,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:03:51,989 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:03:51,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:03:51,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:03:51,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:03:51,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:03:51,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:03:51,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:03:51,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:03:51,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:03:51,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:03:51,995 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:03:51,996 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:03:51,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:03:51,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:03:51,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:03:51,997 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:03:51,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:03:51,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:03:51,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:03:51,999 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:03:52,001 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:03:52,002 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_d0833d9a-ca47-48f8-b7c0-23402da983f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4e2379545062b6cfdf03e26feb426fb16a9fa [2020-11-30 00:03:52,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:03:52,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:03:52,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:03:52,361 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:03:52,366 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:03:52,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2020-11-30 00:03:52,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/data/87875ea66/cd82be82874740c388318dd622ece69b/FLAGb61ea7fcb [2020-11-30 00:03:53,078 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:03:53,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2020-11-30 00:03:53,092 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/data/87875ea66/cd82be82874740c388318dd622ece69b/FLAGb61ea7fcb [2020-11-30 00:03:53,372 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/data/87875ea66/cd82be82874740c388318dd622ece69b [2020-11-30 00:03:53,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:03:53,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:03:53,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:03:53,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:03:53,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:03:53,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:53,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d500556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53, skipping insertion in model container [2020-11-30 00:03:53,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:53,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:03:53,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:03:53,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:03:53,785 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:03:53,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:03:53,931 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:03:53,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53 WrapperNode [2020-11-30 00:03:53,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:03:53,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:03:53,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:03:53,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:03:53,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:53,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:54,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:03:54,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:03:54,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:03:54,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:03:54,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:54,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:54,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:54,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:54,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:54,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:54,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... [2020-11-30 00:03:54,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:03:54,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:03:54,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:03:54,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:03:54,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:03:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:03:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:03:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:03:54,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:03:55,102 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:03:55,102 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-11-30 00:03:55,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:03:55 BoogieIcfgContainer [2020-11-30 00:03:55,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:03:55,107 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:03:55,107 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:03:55,110 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:03:55,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:03:55,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:03:53" (1/3) ... [2020-11-30 00:03:55,113 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7dc304a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:03:55, skipping insertion in model container [2020-11-30 00:03:55,113 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:03:55,113 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:03:53" (2/3) ... [2020-11-30 00:03:55,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7dc304a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:03:55, skipping insertion in model container [2020-11-30 00:03:55,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:03:55,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:03:55" (3/3) ... [2020-11-30 00:03:55,119 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2020-11-30 00:03:55,183 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:03:55,183 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:03:55,184 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:03:55,184 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:03:55,184 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:03:55,184 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:03:55,184 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:03:55,184 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:03:55,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-30 00:03:55,228 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-30 00:03:55,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:03:55,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:03:55,237 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:03:55,237 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:03:55,237 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:03:55,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-30 00:03:55,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-30 00:03:55,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:03:55,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:03:55,244 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:03:55,244 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:03:55,249 INFO L794 eck$LassoCheckResult]: Stem: 40#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #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(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 13#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 31#L545true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 37#L553true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 23#L143true assume 0 != main_~tmp~0; 32#L114true ~switchedOnBeforeTS~0 := 0; 12#L906true havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 60#L927-1true [2020-11-30 00:03:55,249 INFO L796 eck$LassoCheckResult]: Loop: 60#L927-1true assume !false; 22#L570true assume test_~splverifierCounter~0 < 4; 46#L571true test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 50#L579true assume !(0 != test_~tmp~4); 52#L579-1true test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 26#L589true assume !(0 != test_~tmp___0~0); 30#L589-1true test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 8#L599true assume 0 != test_~tmp___2~0; 66#L605-1true havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 71#L825true __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 57#L916true assume !(0 != ~pumpRunning~0); 49#L740true assume !(0 != ~systemActive~0); 54#L747true havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 27#L706true __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 81#L927true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 60#L927-1true [2020-11-30 00:03:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:55,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:03:55,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:55,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250368863] [2020-11-30 00:03:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:55,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:55,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:55,658 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:03:55,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:55,660 INFO L82 PathProgramCache]: Analyzing trace with hash -241799529, now seen corresponding path program 1 times [2020-11-30 00:03:55,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:55,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553802633] [2020-11-30 00:03:55,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:55,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:55,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:55,700 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:03:55,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:55,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1692225681, now seen corresponding path program 1 times [2020-11-30 00:03:55,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:55,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194842833] [2020-11-30 00:03:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:03:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:03:55,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194842833] [2020-11-30 00:03:55,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:03:55,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:03:55,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704944427] [2020-11-30 00:03:56,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:03:56,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:03:56,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:03:56,048 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 6 states. [2020-11-30 00:03:56,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:03:56,329 INFO L93 Difference]: Finished difference Result 223 states and 310 transitions. [2020-11-30 00:03:56,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:03:56,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 310 transitions. [2020-11-30 00:03:56,348 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 143 [2020-11-30 00:03:56,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 202 states and 289 transitions. [2020-11-30 00:03:56,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 202 [2020-11-30 00:03:56,366 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 202 [2020-11-30 00:03:56,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 202 states and 289 transitions. [2020-11-30 00:03:56,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:03:56,370 INFO L691 BuchiCegarLoop]: Abstraction has 202 states and 289 transitions. [2020-11-30 00:03:56,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states and 289 transitions. [2020-11-30 00:03:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 128. [2020-11-30 00:03:56,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-30 00:03:56,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 182 transitions. [2020-11-30 00:03:56,421 INFO L714 BuchiCegarLoop]: Abstraction has 128 states and 182 transitions. [2020-11-30 00:03:56,421 INFO L594 BuchiCegarLoop]: Abstraction has 128 states and 182 transitions. [2020-11-30 00:03:56,421 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:03:56,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states and 182 transitions. [2020-11-30 00:03:56,424 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2020-11-30 00:03:56,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:03:56,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:03:56,433 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:03:56,433 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 00:03:56,433 INFO L794 eck$LassoCheckResult]: Stem: 383#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #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(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 348#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 349#L545 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 374#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 358#L143 assume 0 != main_~tmp~0; 359#L114 ~switchedOnBeforeTS~0 := 0; 347#L906 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 331#L927-1 [2020-11-30 00:03:56,433 INFO L796 eck$LassoCheckResult]: Loop: 331#L927-1 assume !false; 355#L570 assume test_~splverifierCounter~0 < 4; 356#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 390#L579 assume !(0 != test_~tmp~4); 394#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 366#L589 assume !(0 != test_~tmp___0~0); 346#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 339#L599 assume 0 != test_~tmp___2~0; 341#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 402#L825 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 396#L916 assume !(0 != ~pumpRunning~0); 387#L740 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 360#L772 assume !(0 == ~pumpRunning~0); 361#L747 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 367#L706 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 368#L927 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 331#L927-1 [2020-11-30 00:03:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:56,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:03:56,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:56,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198039239] [2020-11-30 00:03:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:56,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:56,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:56,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:03:56,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:56,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1062538437, now seen corresponding path program 1 times [2020-11-30 00:03:56,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:56,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767732635] [2020-11-30 00:03:56,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:03:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:03:56,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767732635] [2020-11-30 00:03:56,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:03:56,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:03:56,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167851239] [2020-11-30 00:03:56,618 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:03:56,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:03:56,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:03:56,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:03:56,619 INFO L87 Difference]: Start difference. First operand 128 states and 182 transitions. cyclomatic complexity: 57 Second operand 3 states. [2020-11-30 00:03:56,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:03:56,744 INFO L93 Difference]: Finished difference Result 175 states and 236 transitions. [2020-11-30 00:03:56,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:03:56,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 175 states and 236 transitions. [2020-11-30 00:03:56,747 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2020-11-30 00:03:56,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 175 states to 175 states and 236 transitions. [2020-11-30 00:03:56,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 175 [2020-11-30 00:03:56,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 175 [2020-11-30 00:03:56,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 236 transitions. [2020-11-30 00:03:56,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:03:56,755 INFO L691 BuchiCegarLoop]: Abstraction has 175 states and 236 transitions. [2020-11-30 00:03:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 236 transitions. [2020-11-30 00:03:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2020-11-30 00:03:56,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-11-30 00:03:56,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 236 transitions. [2020-11-30 00:03:56,765 INFO L714 BuchiCegarLoop]: Abstraction has 175 states and 236 transitions. [2020-11-30 00:03:56,766 INFO L594 BuchiCegarLoop]: Abstraction has 175 states and 236 transitions. [2020-11-30 00:03:56,766 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:03:56,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 236 transitions. [2020-11-30 00:03:56,767 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2020-11-30 00:03:56,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:03:56,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:03:56,768 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:03:56,769 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:03:56,769 INFO L794 eck$LassoCheckResult]: Stem: 691#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #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(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 657#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 658#L545 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 683#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 669#L143 assume 0 != main_~tmp~0; 670#L114 ~switchedOnBeforeTS~0 := 0; 656#L906 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 640#L927-1 [2020-11-30 00:03:56,769 INFO L796 eck$LassoCheckResult]: Loop: 640#L927-1 assume !false; 717#L570 assume test_~splverifierCounter~0 < 4; 785#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 797#L579 assume !(0 != test_~tmp~4); 795#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 794#L589 assume !(0 != test_~tmp___0~0); 680#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 648#L599 assume 0 != test_~tmp___2~0; 650#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 723#L825 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 716#L916 assume !(0 != ~pumpRunning~0); 706#L740 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 667#L772 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 668#L714 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 713#L719 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 688#L874 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 659#L874-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 660#L880 processEnvironment_#t~ret58 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret58;havoc processEnvironment_#t~ret58; 692#L776 assume !(0 != processEnvironment_~tmp~5); 694#L747 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 674#L706 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 675#L927 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 640#L927-1 [2020-11-30 00:03:56,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:56,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:03:56,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:56,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760386490] [2020-11-30 00:03:56,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:56,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:56,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:56,873 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:03:56,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:56,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1275481457, now seen corresponding path program 1 times [2020-11-30 00:03:56,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:56,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994279903] [2020-11-30 00:03:56,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:03:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:03:56,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994279903] [2020-11-30 00:03:56,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:03:56,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:03:56,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633151908] [2020-11-30 00:03:56,937 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:03:56,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:03:56,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:03:56,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:03:56,938 INFO L87 Difference]: Start difference. First operand 175 states and 236 transitions. cyclomatic complexity: 64 Second operand 5 states. [2020-11-30 00:03:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:03:57,166 INFO L93 Difference]: Finished difference Result 619 states and 835 transitions. [2020-11-30 00:03:57,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:03:57,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 619 states and 835 transitions. [2020-11-30 00:03:57,176 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 443 [2020-11-30 00:03:57,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 619 states to 619 states and 835 transitions. [2020-11-30 00:03:57,183 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 619 [2020-11-30 00:03:57,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 619 [2020-11-30 00:03:57,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 619 states and 835 transitions. [2020-11-30 00:03:57,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:03:57,188 INFO L691 BuchiCegarLoop]: Abstraction has 619 states and 835 transitions. [2020-11-30 00:03:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states and 835 transitions. [2020-11-30 00:03:57,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 340. [2020-11-30 00:03:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-11-30 00:03:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 450 transitions. [2020-11-30 00:03:57,231 INFO L714 BuchiCegarLoop]: Abstraction has 340 states and 450 transitions. [2020-11-30 00:03:57,232 INFO L594 BuchiCegarLoop]: Abstraction has 340 states and 450 transitions. [2020-11-30 00:03:57,232 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:03:57,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 340 states and 450 transitions. [2020-11-30 00:03:57,235 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 250 [2020-11-30 00:03:57,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:03:57,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:03:57,239 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:03:57,239 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:03:57,240 INFO L794 eck$LassoCheckResult]: Stem: 1506#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #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(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1470#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1471#L545 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1496#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1482#L143 assume 0 != main_~tmp~0; 1483#L114 ~switchedOnBeforeTS~0 := 0; 1468#L906 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1469#L927-1 [2020-11-30 00:03:57,240 INFO L796 eck$LassoCheckResult]: Loop: 1469#L927-1 assume !false; 1697#L570 assume test_~splverifierCounter~0 < 4; 1698#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 1760#L579 assume !(0 != test_~tmp~4); 1757#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 1756#L589 assume !(0 != test_~tmp___0~0); 1754#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 1753#L599 assume 0 != test_~tmp___2~0; 1752#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1761#L825 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 1726#L916 assume !(0 != ~pumpRunning~0); 1694#L740 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1480#L772 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1481#L714 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1535#L719 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 1501#L874 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 1472#L874-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1473#L880 processEnvironment_#t~ret58 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret58;havoc processEnvironment_#t~ret58; 1509#L776 assume !(0 != processEnvironment_~tmp~5); 1511#L747 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1707#L706 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 1703#L927 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1704#L825-1 __utac_acc__Specification5_spec__3_#t~ret79 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1700#L931 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1469#L927-1 [2020-11-30 00:03:57,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:57,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-30 00:03:57,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:57,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616603574] [2020-11-30 00:03:57,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:57,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:57,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:57,354 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:03:57,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:57,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1671985196, now seen corresponding path program 1 times [2020-11-30 00:03:57,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:57,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139145216] [2020-11-30 00:03:57,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:57,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:57,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:57,381 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:03:57,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:03:57,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1531391858, now seen corresponding path program 1 times [2020-11-30 00:03:57,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:03:57,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075760637] [2020-11-30 00:03:57,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:03:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:57,427 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:03:57,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:03:57,493 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:03:57,855 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-11-30 00:05:12,525 WARN L193 SmtUtils]: Spent 1.24 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:06:04,240 WARN L193 SmtUtils]: Spent 51.70 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:06:04,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:06:04 BoogieIcfgContainer [2020-11-30 00:06:04,585 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:06:04,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:06:04,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:06:04,589 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:06:04,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:03:55" (3/4) ... [2020-11-30 00:06:04,593 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:06:04,653 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d0833d9a-ca47-48f8-b7c0-23402da983f6/bin/uautomizer/witness.graphml [2020-11-30 00:06:04,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:06:04,667 INFO L168 Benchmark]: Toolchain (without parser) took 131289.58 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 63.8 MB in the beginning and 52.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:06:04,668 INFO L168 Benchmark]: CDTParser took 0.90 ms. Allocated memory is still 92.3 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:06:04,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.55 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 63.8 MB in the beginning and 82.0 MB in the end (delta: -18.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:06:04,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.55 ms. Allocated memory is still 115.3 MB. Free memory was 81.4 MB in the beginning and 78.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:06:04,669 INFO L168 Benchmark]: Boogie Preprocessor took 98.38 ms. Allocated memory is still 115.3 MB. Free memory was 78.6 MB in the beginning and 76.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:06:04,670 INFO L168 Benchmark]: RCFGBuilder took 959.27 ms. Allocated memory is still 115.3 MB. Free memory was 76.5 MB in the beginning and 76.1 MB in the end (delta: 426.1 kB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:06:04,671 INFO L168 Benchmark]: BuchiAutomizer took 129479.02 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 76.1 MB in the beginning and 55.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:06:04,672 INFO L168 Benchmark]: Witness Printer took 79.11 ms. Allocated memory is still 138.4 MB. Free memory was 55.5 MB in the beginning and 52.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:06:04,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90 ms. Allocated memory is still 92.3 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 547.55 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 63.8 MB in the beginning and 82.0 MB in the end (delta: -18.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.55 ms. Allocated memory is still 115.3 MB. Free memory was 81.4 MB in the beginning and 78.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.38 ms. Allocated memory is still 115.3 MB. Free memory was 78.6 MB in the beginning and 76.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 959.27 ms. Allocated memory is still 115.3 MB. Free memory was 76.5 MB in the beginning and 76.1 MB in the end (delta: 426.1 kB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 129479.02 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 76.1 MB in the beginning and 55.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB. * Witness Printer took 79.11 ms. Allocated memory is still 138.4 MB. Free memory was 55.5 MB in the beginning and 52.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 340 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 129.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 128.4s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 353 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 340 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 401 SDtfs, 1006 SDslu, 1148 SDs, 0 SdLazy, 168 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 569]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=27001} State at position 1 is {NULL=0, NULL=27015, NULL=0, NULL=27001, NULL=27024, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@da57b37=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29f4efae=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74533695=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ddf8c7e=0, methaneLevelCritical=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9eb86f1=0, tmp___1=0, NULL=27007, NULL=0, NULL=27017, NULL=27020, retValue_acc=0, cleanupTimeShifts=4, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=27028, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e6e1c66=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e10c9e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6231307=0, \result=1, NULL=27023, NULL=0, retValue_acc=0, NULL=27012, NULL=0, retValue_acc=1, NULL=0, NULL=27005, NULL=27027, tmp=1, NULL=27011, head=0, NULL=0, NULL=0, tmp=0, NULL=27006, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=27021, NULL=27008, NULL=27002, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18469562=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=27004, switchedOnBeforeTS=0, NULL=27009, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32c09559=0, \result=0, NULL=27019, NULL=0, NULL=0, systemActive=1, NULL=27010, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=27029, tmp___0=0, NULL=27013, \result=0, NULL=0, NULL=27016, retValue_acc=1, NULL=27026, NULL=27025, tmp___2=56, splverifierCounter=0, NULL=0, NULL=27003, NULL=27014, NULL=27022, NULL=27018} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int cleanupTimeShifts = 4; [L326] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int waterLevel = 1; [L632] int methaneLevelCritical = 0; [L728] int pumpRunning = 0; [L729] int systemActive = 1; [L900] int switchedOnBeforeTS ; [L134] int retValue_acc ; [L135] int tmp ; [L549] int retValue_acc ; [L552] retValue_acc = 1 [L553] return (retValue_acc); [L141] tmp = valid_product() [L143] COND TRUE \read(tmp) [L905] switchedOnBeforeTS = 0 [L560] int splverifierCounter ; [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; [L564] int tmp___2 ; [L567] splverifierCounter = 0 Loop: [L569] COND TRUE 1 [L571] COND TRUE splverifierCounter < 4 [L577] tmp = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp)) [L587] tmp___0 = __VERIFIER_nondet_int() [L589] COND FALSE !(\read(tmp___0)) [L597] tmp___2 = __VERIFIER_nondet_int() [L599] COND TRUE \read(tmp___2) [L821] int retValue_acc ; [L824] retValue_acc = pumpRunning [L825] return (retValue_acc); [L914] switchedOnBeforeTS = isPumpRunning() [L740] COND FALSE !(\read(pumpRunning)) [L747] COND TRUE \read(systemActive) [L769] int tmp ; [L772] COND TRUE ! pumpRunning [L866] int retValue_acc ; [L867] int tmp ; [L868] int tmp___0 ; [L711] int retValue_acc ; [L714] COND TRUE waterLevel < 2 [L715] retValue_acc = 1 [L716] return (retValue_acc); [L872] tmp = isHighWaterSensorDry() [L874] COND TRUE \read(tmp) [L875] tmp___0 = 0 [L879] retValue_acc = tmp___0 [L880] return (retValue_acc); [L774] tmp = isHighWaterLevel() [L776] COND FALSE !(\read(tmp)) [L920] int tmp ; [L921] int tmp___0 ; [L702] int retValue_acc ; [L705] retValue_acc = waterLevel [L706] return (retValue_acc); [L925] tmp = getWaterLevel() [L927] COND TRUE tmp != 2 [L821] int retValue_acc ; [L824] retValue_acc = pumpRunning [L825] return (retValue_acc); [L929] tmp___0 = isPumpRunning() [L931] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...