./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product07.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_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product07.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/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 7b1926ab8ce05e9688e45de48c468d3fc2da1287 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:35:26,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:35:26,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:35:26,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:35:26,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:35:27,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:35:27,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:35:27,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:35:27,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:35:27,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:35:27,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:35:27,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:35:27,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:35:27,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:35:27,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:35:27,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:35:27,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:35:27,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:35:27,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:35:27,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:35:27,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:35:27,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:35:27,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:35:27,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:35:27,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:35:27,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:35:27,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:35:27,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:35:27,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:35:27,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:35:27,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:35:27,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:35:27,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:35:27,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:35:27,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:35:27,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:35:27,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:35:27,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:35:27,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:35:27,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:35:27,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:35:27,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:35:27,092 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:35:27,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:35:27,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:35:27,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:35:27,094 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:35:27,094 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:35:27,094 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:35:27,094 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:35:27,095 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:35:27,095 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:35:27,095 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:35:27,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:35:27,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:35:27,095 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:35:27,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:35:27,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:35:27,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:35:27,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:35:27,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:35:27,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:35:27,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:35:27,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:35:27,097 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:35:27,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:35:27,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:35:27,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:35:27,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:35:27,098 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:35:27,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:35:27,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:35:27,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:35:27,099 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:35:27,100 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:35:27,100 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_15081499-ee06-42b8-9e51-418957a6c7d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b1926ab8ce05e9688e45de48c468d3fc2da1287 [2020-11-30 00:35:27,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:35:27,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:35:27,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:35:27,364 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:35:27,366 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:35:27,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product07.cil.c [2020-11-30 00:35:27,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/data/3d2944bae/43450bff101746ca96c0c7e89f60b8fd/FLAGadcbbcb7e [2020-11-30 00:35:27,964 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:35:27,964 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/sv-benchmarks/c/product-lines/minepump_spec5_product07.cil.c [2020-11-30 00:35:27,981 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/data/3d2944bae/43450bff101746ca96c0c7e89f60b8fd/FLAGadcbbcb7e [2020-11-30 00:35:28,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/data/3d2944bae/43450bff101746ca96c0c7e89f60b8fd [2020-11-30 00:35:28,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:35:28,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:35:28,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:28,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:35:28,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:35:28,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa9607f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28, skipping insertion in model container [2020-11-30 00:35:28,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:35:28,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:35:28,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:28,755 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:35:28,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:28,868 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:35:28,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28 WrapperNode [2020-11-30 00:35:28,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:28,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:28,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:35:28,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:35:28,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:28,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:35:28,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:35:28,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:35:28,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... [2020-11-30 00:35:28,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:35:28,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:35:28,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:35:28,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:35:28,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/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 00:35:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:35:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:35:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:35:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:35:30,031 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:35:30,031 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-11-30 00:35:30,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:30 BoogieIcfgContainer [2020-11-30 00:35:30,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:35:30,040 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:35:30,040 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:35:30,044 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:35:30,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:35:30,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:35:28" (1/3) ... [2020-11-30 00:35:30,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5823ab8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:35:30, skipping insertion in model container [2020-11-30 00:35:30,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:35:30,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:28" (2/3) ... [2020-11-30 00:35:30,047 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5823ab8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:35:30, skipping insertion in model container [2020-11-30 00:35:30,047 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:35:30,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:30" (3/3) ... [2020-11-30 00:35:30,051 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product07.cil.c [2020-11-30 00:35:30,174 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:35:30,174 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:35:30,174 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:35:30,174 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:35:30,174 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:35:30,174 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:35:30,174 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:35:30,175 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:35:30,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-30 00:35:30,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:35:30,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:30,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:30,251 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:35:30,251 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:35:30,252 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:35:30,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-30 00:35:30,264 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 00:35:30,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:30,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:30,265 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:35:30,266 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:35:30,270 INFO L794 eck$LassoCheckResult]: Stem: 32#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 6#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; 47#L535true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 79#L543true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 70#L134true assume 0 != main_~tmp~0; 78#L105true ~switchedOnBeforeTS~0 := 0; 69#L240true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 66#L261-1true [2020-11-30 00:35:30,271 INFO L796 eck$LassoCheckResult]: Loop: 66#L261-1true assume !false; 72#L295true assume test_~splverifierCounter~0 < 4; 5#L296true test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 39#L304true assume !(0 != test_~tmp~2); 42#L304-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 17#L314true assume !(0 != test_~tmp___0~1); 3#L314-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 67#L324true assume 0 != test_~tmp___2~0; 30#L330-1true havoc __utac_acc__Specification5_spec__2_#t~ret18;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 77#L448true __utac_acc__Specification5_spec__2_#t~ret18 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret18;havoc __utac_acc__Specification5_spec__2_#t~ret18; 44#L250true assume !(0 != ~pumpRunning~0); 49#L363true assume !(0 != ~systemActive~0); 33#L370true havoc __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_#t~ret20, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 40#L227true __utac_acc__Specification5_spec__3_#t~ret19 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 45#L261true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 66#L261-1true [2020-11-30 00:35:30,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:30,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:35:30,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:30,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949681368] [2020-11-30 00:35:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:30,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:30,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:30,850 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:30,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:30,854 INFO L82 PathProgramCache]: Analyzing trace with hash -242168937, now seen corresponding path program 1 times [2020-11-30 00:35:30,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:30,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729034574] [2020-11-30 00:35:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:30,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:30,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:30,887 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:30,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:30,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1691856273, now seen corresponding path program 1 times [2020-11-30 00:35:30,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:30,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755128628] [2020-11-30 00:35:30,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:31,055 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 00:35:31,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755128628] [2020-11-30 00:35:31,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:35:31,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:35:31,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618075262] [2020-11-30 00:35:31,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:35:31,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:35:31,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:35:31,199 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 6 states. [2020-11-30 00:35:31,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:35:31,602 INFO L93 Difference]: Finished difference Result 205 states and 280 transitions. [2020-11-30 00:35:31,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:35:31,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 205 states and 280 transitions. [2020-11-30 00:35:31,625 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 131 [2020-11-30 00:35:31,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 205 states to 184 states and 259 transitions. [2020-11-30 00:35:31,638 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2020-11-30 00:35:31,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2020-11-30 00:35:31,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 259 transitions. [2020-11-30 00:35:31,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:35:31,642 INFO L691 BuchiCegarLoop]: Abstraction has 184 states and 259 transitions. [2020-11-30 00:35:31,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 259 transitions. [2020-11-30 00:35:31,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 119. [2020-11-30 00:35:31,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-30 00:35:31,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 167 transitions. [2020-11-30 00:35:31,698 INFO L714 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2020-11-30 00:35:31,699 INFO L594 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2020-11-30 00:35:31,699 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:35:31,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 167 transitions. [2020-11-30 00:35:31,702 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2020-11-30 00:35:31,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:31,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:31,703 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:35:31,703 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 00:35:31,703 INFO L794 eck$LassoCheckResult]: Stem: 338#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 309#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; 310#L535 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 354#L543 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 369#L134 assume 0 != main_~tmp~0; 370#L105 ~switchedOnBeforeTS~0 := 0; 368#L240 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 315#L261-1 [2020-11-30 00:35:31,704 INFO L796 eck$LassoCheckResult]: Loop: 315#L261-1 assume !false; 367#L295 assume test_~splverifierCounter~0 < 4; 307#L296 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 308#L304 assume !(0 != test_~tmp~2); 347#L304-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 318#L314 assume !(0 != test_~tmp___0~1); 305#L314-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 306#L324 assume 0 != test_~tmp___2~0; 336#L330-1 havoc __utac_acc__Specification5_spec__2_#t~ret18;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 337#L448 __utac_acc__Specification5_spec__2_#t~ret18 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret18;havoc __utac_acc__Specification5_spec__2_#t~ret18; 349#L250 assume !(0 != ~pumpRunning~0); 331#L363 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 327#L395 assume !(0 != ~pumpRunning~0); 328#L370 havoc __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_#t~ret20, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 341#L227 __utac_acc__Specification5_spec__3_#t~ret19 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 348#L261 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 315#L261-1 [2020-11-30 00:35:31,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:31,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:35:31,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:31,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089873737] [2020-11-30 00:35:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:31,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:31,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:31,807 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:31,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:31,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1062169029, now seen corresponding path program 1 times [2020-11-30 00:35:31,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:31,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766770148] [2020-11-30 00:35:31,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:31,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:31,818 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:31,822 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:31,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:31,823 INFO L82 PathProgramCache]: Analyzing trace with hash 887408395, now seen corresponding path program 1 times [2020-11-30 00:35:31,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:31,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334031168] [2020-11-30 00:35:31,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:31,886 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 00:35:31,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334031168] [2020-11-30 00:35:31,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:35:31,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:35:31,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145135528] [2020-11-30 00:35:31,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:35:31,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:35:31,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:35:31,979 INFO L87 Difference]: Start difference. First operand 119 states and 167 transitions. cyclomatic complexity: 51 Second operand 5 states. [2020-11-30 00:35:32,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:35:32,149 INFO L93 Difference]: Finished difference Result 316 states and 435 transitions. [2020-11-30 00:35:32,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:35:32,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 316 states and 435 transitions. [2020-11-30 00:35:32,155 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2020-11-30 00:35:32,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 316 states to 316 states and 435 transitions. [2020-11-30 00:35:32,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 316 [2020-11-30 00:35:32,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2020-11-30 00:35:32,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 316 states and 435 transitions. [2020-11-30 00:35:32,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:35:32,163 INFO L691 BuchiCegarLoop]: Abstraction has 316 states and 435 transitions. [2020-11-30 00:35:32,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 435 transitions. [2020-11-30 00:35:32,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 231. [2020-11-30 00:35:32,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-11-30 00:35:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 313 transitions. [2020-11-30 00:35:32,182 INFO L714 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2020-11-30 00:35:32,182 INFO L594 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2020-11-30 00:35:32,182 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:35:32,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 313 transitions. [2020-11-30 00:35:32,184 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2020-11-30 00:35:32,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:32,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:32,185 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:35:32,186 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:35:32,186 INFO L794 eck$LassoCheckResult]: Stem: 792#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 760#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; 761#L535 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 815#L543 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 843#L134 assume 0 != main_~tmp~0; 844#L105 ~switchedOnBeforeTS~0 := 0; 842#L240 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 763#L261-1 [2020-11-30 00:35:32,186 INFO L796 eck$LassoCheckResult]: Loop: 763#L261-1 assume !false; 840#L295 assume test_~splverifierCounter~0 < 4; 758#L296 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 759#L304 assume !(0 != test_~tmp~2); 804#L304-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 807#L314 assume !(0 != test_~tmp___0~1); 960#L314-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 957#L324 assume 0 != test_~tmp___2~0; 823#L330-1 havoc __utac_acc__Specification5_spec__2_#t~ret18;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 982#L448 __utac_acc__Specification5_spec__2_#t~ret18 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret18;havoc __utac_acc__Specification5_spec__2_#t~ret18; 981#L250 assume !(0 != ~pumpRunning~0); 979#L363 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 936#L395 assume !(0 != ~pumpRunning~0); 973#L370 havoc __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_#t~ret20, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 972#L227 __utac_acc__Specification5_spec__3_#t~ret19 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 810#L261 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 811#L448-1 __utac_acc__Specification5_spec__3_#t~ret20 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret20;havoc __utac_acc__Specification5_spec__3_#t~ret20; 819#L265 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 763#L261-1 [2020-11-30 00:35:32,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:32,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:35:32,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:32,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569467705] [2020-11-30 00:35:32,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:32,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:32,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:32,361 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:32,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:32,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1457795584, now seen corresponding path program 1 times [2020-11-30 00:35:32,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:32,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233553576] [2020-11-30 00:35:32,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:32,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:32,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:32,385 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:32,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:32,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1899040314, now seen corresponding path program 1 times [2020-11-30 00:35:32,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:32,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756986601] [2020-11-30 00:35:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:32,451 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:32,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:32,532 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:32,653 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-30 00:36:49,848 WARN L193 SmtUtils]: Spent 1.29 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:37:48,758 WARN L193 SmtUtils]: Spent 58.89 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:37:49,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:37:49 BoogieIcfgContainer [2020-11-30 00:37:49,055 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:37:49,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:37:49,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:37:49,057 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:37:49,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:30" (3/4) ... [2020-11-30 00:37:49,060 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:37:49,146 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_15081499-ee06-42b8-9e51-418957a6c7d5/bin/uautomizer/witness.graphml [2020-11-30 00:37:49,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:37:49,147 INFO L168 Benchmark]: Toolchain (without parser) took 140820.01 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 104.1 MB in the beginning and 128.9 MB in the end (delta: -24.8 MB). Peak memory consumption was 92.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:49,148 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 92.3 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:37:49,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.33 ms. Allocated memory is still 132.1 MB. Free memory was 104.1 MB in the beginning and 99.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:49,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.91 ms. Allocated memory is still 132.1 MB. Free memory was 99.4 MB in the beginning and 96.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:49,150 INFO L168 Benchmark]: Boogie Preprocessor took 38.93 ms. Allocated memory is still 132.1 MB. Free memory was 96.1 MB in the beginning and 94.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:49,151 INFO L168 Benchmark]: RCFGBuilder took 1048.50 ms. Allocated memory is still 132.1 MB. Free memory was 94.0 MB in the beginning and 43.7 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:49,151 INFO L168 Benchmark]: BuchiAutomizer took 139015.59 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 43.7 MB in the beginning and 43.7 MB in the end (delta: -10.9 kB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:49,152 INFO L168 Benchmark]: Witness Printer took 89.93 ms. Allocated memory is still 159.4 MB. Free memory was 43.7 MB in the beginning and 128.9 MB in the end (delta: -85.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:49,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 92.3 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 537.33 ms. Allocated memory is still 132.1 MB. Free memory was 104.1 MB in the beginning and 99.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.91 ms. Allocated memory is still 132.1 MB. Free memory was 99.4 MB in the beginning and 96.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.93 ms. Allocated memory is still 132.1 MB. Free memory was 96.1 MB in the beginning and 94.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1048.50 ms. Allocated memory is still 132.1 MB. Free memory was 94.0 MB in the beginning and 43.7 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 139015.59 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 43.7 MB in the beginning and 43.7 MB in the end (delta: -10.9 kB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. * Witness Printer took 89.93 ms. Allocated memory is still 159.4 MB. Free memory was 43.7 MB in the beginning and 128.9 MB in the end (delta: -85.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 231 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 138.0s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 150 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 231 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 256 SDtfs, 685 SDslu, 870 SDs, 0 SdLazy, 109 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 294]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=30290, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=1, NULL=0, NULL=30281, NULL=30285, NULL=25948, NULL=0, NULL=30294, NULL=30293, NULL=30280, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@648b65fc=0, tmp=0, NULL=0, NULL=0, NULL=0, tmp=1, tmp___1=0, NULL=0, NULL=0, NULL=25949, NULL=30277, cleanupTimeShifts=4, NULL=30299, switchedOnBeforeTS=0, NULL=30295, \result=0, NULL=30276, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=30289, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=30275, NULL=0, NULL=30284, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5305ec8e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@562e4079=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57d18852=60, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d783760=0, retValue_acc=1, NULL=30292, NULL=0, NULL=0, NULL=30288, NULL=0, NULL=0, NULL=30286, NULL=0, tmp___2=60, NULL=0, NULL=30279, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=25947, NULL=30297, NULL=30298, NULL=30296, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f30b6da=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c640eb5=0, head=0, NULL=0, NULL=30282, NULL=30283, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d07bef8=0, NULL=30287, NULL=30291, NULL=30278, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1698c4d5=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L152] int waterLevel = 1; [L153] int methaneLevelCritical = 0; [L234] int switchedOnBeforeTS ; [L353] int pumpRunning = 0; [L354] int systemActive = 1; [L717] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L125] int retValue_acc ; [L126] int tmp ; [L539] int retValue_acc ; [L542] retValue_acc = 1 [L543] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L239] switchedOnBeforeTS = 0 [L285] int splverifierCounter ; [L286] int tmp ; [L287] int tmp___0 ; [L288] int tmp___1 ; [L289] int tmp___2 ; [L292] splverifierCounter = 0 Loop: [L294] COND TRUE 1 [L296] COND TRUE splverifierCounter < 4 [L302] tmp = __VERIFIER_nondet_int() [L304] COND FALSE !(\read(tmp)) [L312] tmp___0 = __VERIFIER_nondet_int() [L314] COND FALSE !(\read(tmp___0)) [L322] tmp___2 = __VERIFIER_nondet_int() [L324] COND TRUE \read(tmp___2) [L444] int retValue_acc ; [L447] retValue_acc = pumpRunning [L448] return (retValue_acc); [L248] switchedOnBeforeTS = isPumpRunning() [L363] COND FALSE !(\read(pumpRunning)) [L370] COND TRUE \read(systemActive) [L392] int tmp ; [L395] COND FALSE !(\read(pumpRunning)) [L254] int tmp ; [L255] int tmp___0 ; [L223] int retValue_acc ; [L226] retValue_acc = waterLevel [L227] return (retValue_acc); [L259] tmp = getWaterLevel() [L261] COND TRUE tmp != 2 [L444] int retValue_acc ; [L447] retValue_acc = pumpRunning [L448] return (retValue_acc); [L263] tmp___0 = isPumpRunning() [L265] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...