./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/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 f9e2a44dd4ad6e5efbee2b83f956ad3fce45b6fa ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:43:26,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:43:26,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:43:26,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:43:26,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:43:26,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:43:26,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:43:26,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:43:26,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:43:26,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:43:26,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:43:26,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:43:26,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:43:26,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:43:26,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:43:26,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:43:26,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:43:26,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:43:26,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:43:26,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:43:26,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:43:26,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:43:26,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:43:26,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:43:26,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:43:27,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:43:27,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:43:27,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:43:27,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:43:27,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:43:27,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:43:27,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:43:27,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:43:27,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:43:27,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:43:27,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:43:27,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:43:27,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:43:27,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:43:27,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:43:27,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:43:27,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:43:27,072 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:43:27,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:43:27,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:43:27,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:43:27,076 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:43:27,077 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:43:27,077 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:43:27,077 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:43:27,078 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:43:27,078 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:43:27,079 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:43:27,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:43:27,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:43:27,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:43:27,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:43:27,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:43:27,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:43:27,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:43:27,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:43:27,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:43:27,082 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:43:27,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:43:27,083 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:43:27,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:43:27,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:43:27,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:43:27,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:43:27,084 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:43:27,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:43:27,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:43:27,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:43:27,085 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:43:27,087 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:43:27,087 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_a8227d6d-14d8-4c65-9dd2-a546de48f139/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9e2a44dd4ad6e5efbee2b83f956ad3fce45b6fa [2020-11-29 19:43:27,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:43:27,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:43:27,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:43:27,451 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:43:27,454 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:43:27,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c [2020-11-29 19:43:27,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/data/b9e299ba7/1bdccdeb42d949d6b20aad38bfd6b4b4/FLAG0692c4f90 [2020-11-29 19:43:28,181 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:43:28,182 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c [2020-11-29 19:43:28,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/data/b9e299ba7/1bdccdeb42d949d6b20aad38bfd6b4b4/FLAG0692c4f90 [2020-11-29 19:43:28,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/data/b9e299ba7/1bdccdeb42d949d6b20aad38bfd6b4b4 [2020-11-29 19:43:28,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:43:28,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:43:28,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:43:28,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:43:28,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:43:28,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:43:28" (1/1) ... [2020-11-29 19:43:28,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5febbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:28, skipping insertion in model container [2020-11-29 19:43:28,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:43:28" (1/1) ... [2020-11-29 19:43:28,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:43:28,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:43:28,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:43:28,927 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:43:29,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:43:29,058 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:43:29,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29 WrapperNode [2020-11-29 19:43:29,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:43:29,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:43:29,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:43:29,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:43:29,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... [2020-11-29 19:43:29,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... [2020-11-29 19:43:29,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:43:29,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:43:29,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:43:29,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:43:29,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... [2020-11-29 19:43:29,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... [2020-11-29 19:43:29,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... [2020-11-29 19:43:29,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... [2020-11-29 19:43:29,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... [2020-11-29 19:43:29,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... [2020-11-29 19:43:29,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... [2020-11-29 19:43:29,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:43:29,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:43:29,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:43:29,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:43:29,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:43:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:43:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:43:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:43:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:43:30,307 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:43:30,309 INFO L298 CfgBuilder]: Removed 116 assume(true) statements. [2020-11-29 19:43:30,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:43:30 BoogieIcfgContainer [2020-11-29 19:43:30,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:43:30,314 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:43:30,314 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:43:30,318 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:43:30,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:43:30,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:43:28" (1/3) ... [2020-11-29 19:43:30,321 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f146183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:43:30, skipping insertion in model container [2020-11-29 19:43:30,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:43:30,322 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:29" (2/3) ... [2020-11-29 19:43:30,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f146183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:43:30, skipping insertion in model container [2020-11-29 19:43:30,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:43:30,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:43:30" (3/3) ... [2020-11-29 19:43:30,325 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product17.cil.c [2020-11-29 19:43:30,394 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:43:30,395 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:43:30,395 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:43:30,395 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:43:30,395 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:43:30,395 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:43:30,396 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:43:30,396 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:43:30,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2020-11-29 19:43:30,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 19:43:30,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:43:30,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:43:30,455 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:30,456 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:30,456 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:43:30,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2020-11-29 19:43:30,478 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 19:43:30,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:43:30,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:43:30,482 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:30,482 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:30,499 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 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; 32#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; 34#L553true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 69#L134true assume 0 != main_~tmp~0; 78#L105true ~switchedOnBeforeTS~0 := 0; 10#L566true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 79#L587-1true [2020-11-29 19:43:30,500 INFO L796 eck$LassoCheckResult]: Loop: 79#L587-1true assume !false; 19#L870true assume test_~splverifierCounter~0 < 4; 40#L871true test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 64#L879true assume !(0 != test_~tmp~7); 48#L879-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 26#L889true assume !(0 != test_~tmp___0~2); 29#L889-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 7#L899true assume 0 != test_~tmp___2~0; 58#L905-2true havoc __utac_acc__Specification5_spec__2_#t~ret44;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; 82#L799true __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 76#L576true assume !(0 != ~pumpRunning~0); 50#L714true assume !(0 != ~systemActive~0); 42#L721true havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 44#L688true __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 74#L587true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 79#L587-1true [2020-11-29 19:43:30,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:43:30,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:30,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217382859] [2020-11-29 19:43:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:30,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:31,109 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:31,179 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:31,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:31,184 INFO L82 PathProgramCache]: Analyzing trace with hash 94196910, now seen corresponding path program 1 times [2020-11-29 19:43:31,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:31,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768822945] [2020-11-29 19:43:31,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:31,202 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:31,208 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:31,215 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:31,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:31,224 INFO L82 PathProgramCache]: Analyzing trace with hash 2028222120, now seen corresponding path program 1 times [2020-11-29 19:43:31,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:31,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721047189] [2020-11-29 19:43:31,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:31,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:43:31,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721047189] [2020-11-29 19:43:31,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:31,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:43:31,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860644875] [2020-11-29 19:43:31,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:31,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:43:31,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:43:31,678 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 6 states. [2020-11-29 19:43:32,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:32,003 INFO L93 Difference]: Finished difference Result 81 states and 109 transitions. [2020-11-29 19:43:32,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:43:32,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 109 transitions. [2020-11-29 19:43:32,021 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 19:43:32,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2020-11-29 19:43:32,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2020-11-29 19:43:32,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2020-11-29 19:43:32,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2020-11-29 19:43:32,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:43:32,029 INFO L691 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2020-11-29 19:43:32,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2020-11-29 19:43:32,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-29 19:43:32,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-29 19:43:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2020-11-29 19:43:32,069 INFO L714 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2020-11-29 19:43:32,069 INFO L594 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2020-11-29 19:43:32,069 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:43:32,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2020-11-29 19:43:32,071 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 19:43:32,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:43:32,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:43:32,072 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:32,073 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:32,073 INFO L794 eck$LassoCheckResult]: Stem: 229#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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 203#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; 204#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; 224#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 227#L134 assume 0 != main_~tmp~0; 255#L105 ~switchedOnBeforeTS~0 := 0; 198#L566 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 199#L587-1 [2020-11-29 19:43:32,073 INFO L796 eck$LassoCheckResult]: Loop: 199#L587-1 assume !false; 211#L870 assume test_~splverifierCounter~0 < 4; 212#L871 test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 233#L879 assume !(0 != test_~tmp~7); 240#L879-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 217#L889 assume !(0 != test_~tmp___0~2); 190#L889-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 191#L899 assume 0 != test_~tmp___2~0; 193#L905-2 havoc __utac_acc__Specification5_spec__2_#t~ret44;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; 250#L799 __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 256#L576 assume !(0 != ~pumpRunning~0); 242#L714 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 225#L746 assume !(0 != ~pumpRunning~0); 219#L721 havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 235#L688 __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 236#L587 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 199#L587-1 [2020-11-29 19:43:32,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:32,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:43:32,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:32,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809768004] [2020-11-29 19:43:32,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:32,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:32,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:32,206 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:32,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:32,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1401856251, now seen corresponding path program 1 times [2020-11-29 19:43:32,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:32,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175798106] [2020-11-29 19:43:32,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:32,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:32,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:32,222 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:32,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:32,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1576616885, now seen corresponding path program 1 times [2020-11-29 19:43:32,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:32,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462908445] [2020-11-29 19:43:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:43:32,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462908445] [2020-11-29 19:43:32,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:32,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:43:32,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669267448] [2020-11-29 19:43:32,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:32,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:43:32,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:43:32,482 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. cyclomatic complexity: 30 Second operand 5 states. [2020-11-29 19:43:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:32,763 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2020-11-29 19:43:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:43:32,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2020-11-29 19:43:32,772 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2020-11-29 19:43:32,782 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2020-11-29 19:43:32,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2020-11-29 19:43:32,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2020-11-29 19:43:32,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2020-11-29 19:43:32,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:43:32,792 INFO L691 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2020-11-29 19:43:32,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2020-11-29 19:43:32,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2020-11-29 19:43:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-29 19:43:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2020-11-29 19:43:32,819 INFO L714 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2020-11-29 19:43:32,819 INFO L594 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2020-11-29 19:43:32,819 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:43:32,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2020-11-29 19:43:32,821 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2020-11-29 19:43:32,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:43:32,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:43:32,822 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:32,823 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:32,823 INFO L794 eck$LassoCheckResult]: Stem: 529#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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 503#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; 504#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; 524#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 527#L134 assume 0 != main_~tmp~0; 566#L105 ~switchedOnBeforeTS~0 := 0; 498#L566 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 499#L587-1 [2020-11-29 19:43:32,823 INFO L796 eck$LassoCheckResult]: Loop: 499#L587-1 assume !false; 511#L870 assume test_~splverifierCounter~0 < 4; 512#L871 test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 620#L879 assume !(0 != test_~tmp~7); 619#L879-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 618#L889 assume !(0 != test_~tmp___0~2); 616#L889-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 615#L899 assume 0 != test_~tmp___2~0; 557#L905-2 havoc __utac_acc__Specification5_spec__2_#t~ret44;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; 558#L799 __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 568#L576 assume !(0 != ~pumpRunning~0); 548#L714 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 525#L746 assume !(0 != ~pumpRunning~0); 519#L721 havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 537#L688 __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 539#L587 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;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; 552#L799-1 __utac_acc__Specification5_spec__3_#t~ret46 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 553#L591 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 499#L587-1 [2020-11-29 19:43:32,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:32,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:43:32,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:32,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354876246] [2020-11-29 19:43:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:32,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:32,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:32,988 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:32,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:32,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1435857664, now seen corresponding path program 1 times [2020-11-29 19:43:32,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:32,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754429367] [2020-11-29 19:43:32,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:32,996 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:33,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:33,007 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:33,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:33,008 INFO L82 PathProgramCache]: Analyzing trace with hash 994612934, now seen corresponding path program 1 times [2020-11-29 19:43:33,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:33,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405366745] [2020-11-29 19:43:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:33,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:33,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:33,159 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:33,357 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-29 19:45:02,265 WARN L193 SmtUtils]: Spent 1.48 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:45:59,589 WARN L193 SmtUtils]: Spent 57.30 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:45:59,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:45:59 BoogieIcfgContainer [2020-11-29 19:45:59,890 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:45:59,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:45:59,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:45:59,891 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:45:59,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:43:30" (3/4) ... [2020-11-29 19:45:59,895 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:45:59,950 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a8227d6d-14d8-4c65-9dd2-a546de48f139/bin/uautomizer/witness.graphml [2020-11-29 19:45:59,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:45:59,952 INFO L168 Benchmark]: Toolchain (without parser) took 151482.58 ms. Allocated memory was 119.5 MB in the beginning and 161.5 MB in the end (delta: 41.9 MB). Free memory was 84.3 MB in the beginning and 55.7 MB in the end (delta: 28.6 MB). Peak memory consumption was 70.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:59,953 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 75.5 MB. Free memory was 35.3 MB in the beginning and 35.3 MB in the end (delta: 32.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:45:59,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.40 ms. Allocated memory is still 119.5 MB. Free memory was 84.3 MB in the beginning and 84.7 MB in the end (delta: -353.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:59,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.56 ms. Allocated memory is still 119.5 MB. Free memory was 84.7 MB in the beginning and 81.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:59,959 INFO L168 Benchmark]: Boogie Preprocessor took 45.70 ms. Allocated memory is still 119.5 MB. Free memory was 81.7 MB in the beginning and 79.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:59,960 INFO L168 Benchmark]: RCFGBuilder took 1131.79 ms. Allocated memory is still 119.5 MB. Free memory was 79.6 MB in the beginning and 66.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:59,960 INFO L168 Benchmark]: BuchiAutomizer took 149575.82 ms. Allocated memory was 119.5 MB in the beginning and 161.5 MB in the end (delta: 41.9 MB). Free memory was 66.1 MB in the beginning and 57.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:59,961 INFO L168 Benchmark]: Witness Printer took 60.05 ms. Allocated memory is still 161.5 MB. Free memory was 57.7 MB in the beginning and 55.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:59,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 75.5 MB. Free memory was 35.3 MB in the beginning and 35.3 MB in the end (delta: 32.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 588.40 ms. Allocated memory is still 119.5 MB. Free memory was 84.3 MB in the beginning and 84.7 MB in the end (delta: -353.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.56 ms. Allocated memory is still 119.5 MB. Free memory was 84.7 MB in the beginning and 81.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.70 ms. Allocated memory is still 119.5 MB. Free memory was 81.7 MB in the beginning and 79.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1131.79 ms. Allocated memory is still 119.5 MB. Free memory was 79.6 MB in the beginning and 66.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 149575.82 ms. Allocated memory was 119.5 MB in the beginning and 161.5 MB in the end (delta: 41.9 MB). Free memory was 66.1 MB in the beginning and 57.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.1 GB. * Witness Printer took 60.05 ms. Allocated memory is still 161.5 MB. Free memory was 57.7 MB in the beginning and 55.7 MB in the end (delta: 2.0 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 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 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 149.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 148.6s. 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, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 260 SDtfs, 733 SDslu, 300 SDs, 0 SdLazy, 90 SolverSat, 23 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: 869]: 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=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d39b5cc=0, NULL=1, NULL=0, NULL=0, NULL=7048, NULL=7058, NULL=7064, NULL=7061, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dbf593e=0, NULL=7055, NULL=0, tmp=1, NULL=0, tmp=0, NULL=7056, tmp___1=0, NULL=7060, NULL=0, NULL=0, NULL=7043, NULL=7054, NULL=7049, retValue_acc=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=7046, NULL=7041, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f8a214=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38b9cc00=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75b82e92=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5360d97a=49, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72f9702f=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=7063, NULL=0, NULL=7047, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=7038, NULL=7057, NULL=0, NULL=7050, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10dfba1e=0, NULL=7039, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26d8009c=0, retValue_acc=1, NULL=7053, NULL=0, NULL=0, NULL=2, retValue_acc=1, tmp___2=49, tmp___0=0, NULL=7045, NULL=7042, splverifierCounter=0, NULL=0, NULL=7040, NULL=7062, head=0, NULL=0, NULL=0, tmp=0, NULL=7044, NULL=0, NULL=0, NULL=0, NULL=7059, NULL=7051, NULL=7052, NULL=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; [L317] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L560] int switchedOnBeforeTS ; [L613] int waterLevel = 1; [L614] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L125] int retValue_acc ; [L126] int tmp ; [L549] int retValue_acc ; [L552] retValue_acc = 1 [L553] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L565] switchedOnBeforeTS = 0 [L860] int splverifierCounter ; [L861] int tmp ; [L862] int tmp___0 ; [L863] int tmp___1 ; [L864] int tmp___2 ; [L867] splverifierCounter = 0 Loop: [L869] COND TRUE 1 [L871] COND TRUE splverifierCounter < 4 [L877] tmp = __VERIFIER_nondet_int() [L879] COND FALSE !(\read(tmp)) [L887] tmp___0 = __VERIFIER_nondet_int() [L889] COND FALSE !(\read(tmp___0)) [L897] tmp___2 = __VERIFIER_nondet_int() [L899] COND TRUE \read(tmp___2) [L795] int retValue_acc ; [L798] retValue_acc = pumpRunning [L799] return (retValue_acc); [L574] switchedOnBeforeTS = isPumpRunning() [L714] COND FALSE !(\read(pumpRunning)) [L721] COND TRUE \read(systemActive) [L743] int tmp ; [L746] COND FALSE !(\read(pumpRunning)) [L580] int tmp ; [L581] int tmp___0 ; [L684] int retValue_acc ; [L687] retValue_acc = waterLevel [L688] return (retValue_acc); [L585] tmp = getWaterLevel() [L587] COND TRUE tmp != 2 [L795] int retValue_acc ; [L798] retValue_acc = pumpRunning [L799] return (retValue_acc); [L589] tmp___0 = isPumpRunning() [L591] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...