./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.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_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/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 f29d91945fbff4cc0c2de7e0e7b2e2b9e380e9fb ............................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:30:40,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:30:40,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:30:40,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:30:40,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:30:40,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:30:40,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:30:40,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:30:41,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:30:41,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:30:41,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:30:41,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:30:41,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:30:41,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:30:41,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:30:41,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:30:41,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:30:41,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:30:41,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:30:41,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:30:41,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:30:41,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:30:41,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:30:41,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:30:41,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:30:41,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:30:41,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:30:41,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:30:41,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:30:41,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:30:41,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:30:41,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:30:41,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:30:41,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:30:41,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:30:41,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:30:41,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:30:41,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:30:41,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:30:41,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:30:41,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:30:41,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:30:41,116 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:30:41,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:30:41,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:30:41,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:30:41,118 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:30:41,119 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:30:41,127 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:30:41,127 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:30:41,127 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:30:41,128 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:30:41,129 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:30:41,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:30:41,130 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:30:41,130 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:30:41,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:30:41,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:30:41,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:30:41,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:30:41,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:30:41,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:30:41,132 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:30:41,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:30:41,133 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:30:41,133 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:30:41,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:30:41,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:30:41,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:30:41,135 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:30:41,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:30:41,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:30:41,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:30:41,137 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:30:41,139 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:30:41,139 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_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f29d91945fbff4cc0c2de7e0e7b2e2b9e380e9fb [2020-11-29 19:30:41,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:30:41,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:30:41,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:30:41,489 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:30:41,490 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:30:41,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2020-11-29 19:30:41,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/data/84eaf9dc8/8c6d0406014c4649bccd5d2bf7411443/FLAG768cd8564 [2020-11-29 19:30:42,257 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:30:42,258 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2020-11-29 19:30:42,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/data/84eaf9dc8/8c6d0406014c4649bccd5d2bf7411443/FLAG768cd8564 [2020-11-29 19:30:42,525 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/data/84eaf9dc8/8c6d0406014c4649bccd5d2bf7411443 [2020-11-29 19:30:42,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:30:42,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:30:42,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:30:42,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:30:42,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:30:42,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:30:42" (1/1) ... [2020-11-29 19:30:42,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a469dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:42, skipping insertion in model container [2020-11-29 19:30:42,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:30:42" (1/1) ... [2020-11-29 19:30:42,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:30:42,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:30:43,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:30:43,115 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:30:43,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:30:43,311 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:30:43,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43 WrapperNode [2020-11-29 19:30:43,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:30:43,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:30:43,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:30:43,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:30:43,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... [2020-11-29 19:30:43,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... [2020-11-29 19:30:43,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:30:43,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:30:43,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:30:43,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:30:43,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... [2020-11-29 19:30:43,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... [2020-11-29 19:30:43,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... [2020-11-29 19:30:43,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... [2020-11-29 19:30:43,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... [2020-11-29 19:30:43,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... [2020-11-29 19:30:43,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... [2020-11-29 19:30:43,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:30:43,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:30:43,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:30:43,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:30:43,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/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 19:30:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:30:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:30:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:30:43,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:30:45,574 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:30:45,575 INFO L298 CfgBuilder]: Removed 356 assume(true) statements. [2020-11-29 19:30:45,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:30:45 BoogieIcfgContainer [2020-11-29 19:30:45,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:30:45,579 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:30:45,579 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:30:45,583 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:30:45,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:30:45,600 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:30:42" (1/3) ... [2020-11-29 19:30:45,602 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6df7e7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:30:45, skipping insertion in model container [2020-11-29 19:30:45,602 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:30:45,602 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:30:43" (2/3) ... [2020-11-29 19:30:45,603 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6df7e7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:30:45, skipping insertion in model container [2020-11-29 19:30:45,603 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:30:45,603 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:30:45" (3/3) ... [2020-11-29 19:30:45,605 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2020-11-29 19:30:45,699 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:30:45,699 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:30:45,700 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:30:45,700 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:30:45,700 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:30:45,700 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:30:45,700 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:30:45,700 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:30:45,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states. [2020-11-29 19:30:45,788 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2020-11-29 19:30:45,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:30:45,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:30:45,805 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:30:45,805 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:30:45,805 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:30:45,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states. [2020-11-29 19:30:45,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2020-11-29 19:30:45,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:30:45,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:30:45,833 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:30:45,833 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:30:45,839 INFO L794 eck$LassoCheckResult]: Stem: 84#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 128#L397true 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; 152#L405true main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 118#L858true assume 0 != main_~tmp~10; 13#L835true havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 95#L985-1true [2020-11-29 19:30:45,840 INFO L796 eck$LassoCheckResult]: Loop: 95#L985-1true assume !false; 205#L316true assume test_~splverifierCounter~0 < 4; 46#L317true test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 69#L325true assume !(0 != test_~tmp~6); 54#L325-1true test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 119#L335true assume !(0 != test_~tmp___0~2); 115#L335-1true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 9#L345true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 140#L353-2true assume !(0 != ~pumpRunning~0); 134#L61true assume !(0 != ~systemActive~0); 227#L68true havoc __utac_acc__Specification1_spec__1_#t~ret81, __utac_acc__Specification1_spec__1_#t~ret82, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 213#L916-5true __utac_acc__Specification1_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret81;havoc __utac_acc__Specification1_spec__1_#t~ret81; 93#L985true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 95#L985-1true [2020-11-29 19:30:45,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:30:45,847 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:30:45,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:30:45,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408137346] [2020-11-29 19:30:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:30:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:46,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:46,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:46,485 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:30:46,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:30:46,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1674172475, now seen corresponding path program 1 times [2020-11-29 19:30:46,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:30:46,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018857253] [2020-11-29 19:30:46,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:30:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:30:46,571 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 19:30:46,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018857253] [2020-11-29 19:30:46,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:30:46,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:30:46,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166376964] [2020-11-29 19:30:46,580 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:30:46,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:30:46,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:30:46,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:30:46,600 INFO L87 Difference]: Start difference. First operand 225 states. Second operand 3 states. [2020-11-29 19:30:46,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:30:46,690 INFO L93 Difference]: Finished difference Result 222 states and 323 transitions. [2020-11-29 19:30:46,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:30:46,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 323 transitions. [2020-11-29 19:30:46,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2020-11-29 19:30:46,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 215 states and 315 transitions. [2020-11-29 19:30:46,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2020-11-29 19:30:46,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2020-11-29 19:30:46,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 315 transitions. [2020-11-29 19:30:46,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:30:46,716 INFO L691 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2020-11-29 19:30:46,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 315 transitions. [2020-11-29 19:30:46,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-11-29 19:30:46,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-11-29 19:30:46,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 315 transitions. [2020-11-29 19:30:46,767 INFO L714 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2020-11-29 19:30:46,767 INFO L594 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2020-11-29 19:30:46,768 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:30:46,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 315 transitions. [2020-11-29 19:30:46,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2020-11-29 19:30:46,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:30:46,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:30:46,773 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:30:46,773 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 19:30:46,774 INFO L794 eck$LassoCheckResult]: Stem: 585#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 456#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 457#L397 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; 617#L405 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 608#L858 assume 0 != main_~tmp~10; 478#L835 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 479#L985-1 [2020-11-29 19:30:46,774 INFO L796 eck$LassoCheckResult]: Loop: 479#L985-1 assume !false; 593#L316 assume test_~splverifierCounter~0 < 4; 542#L317 test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 543#L325 assume !(0 != test_~tmp~6); 556#L325-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 557#L335 assume !(0 != test_~tmp___0~2); 567#L335-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 468#L345 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 469#L353-2 assume !(0 != ~pumpRunning~0); 529#L61 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 621#L145 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 544#L119-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 545#L93-3 assume !(0 == ~pumpRunning~0); 505#L68 havoc __utac_acc__Specification1_spec__1_#t~ret81, __utac_acc__Specification1_spec__1_#t~ret82, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 670#L916-5 __utac_acc__Specification1_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret81;havoc __utac_acc__Specification1_spec__1_#t~ret81; 592#L985 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 479#L985-1 [2020-11-29 19:30:46,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:30:46,775 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:30:46,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:30:46,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047885905] [2020-11-29 19:30:46,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:30:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:46,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:46,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:46,931 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:30:46,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:30:46,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1243674301, now seen corresponding path program 1 times [2020-11-29 19:30:46,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:30:46,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758876773] [2020-11-29 19:30:46,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:30:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:30:46,966 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 19:30:46,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758876773] [2020-11-29 19:30:46,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:30:46,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:30:46,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324897120] [2020-11-29 19:30:46,967 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:30:46,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:30:46,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:30:46,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:30:46,969 INFO L87 Difference]: Start difference. First operand 215 states and 315 transitions. cyclomatic complexity: 102 Second operand 3 states. [2020-11-29 19:30:47,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:30:47,226 INFO L93 Difference]: Finished difference Result 211 states and 291 transitions. [2020-11-29 19:30:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:30:47,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 291 transitions. [2020-11-29 19:30:47,236 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2020-11-29 19:30:47,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 291 transitions. [2020-11-29 19:30:47,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2020-11-29 19:30:47,247 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2020-11-29 19:30:47,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 291 transitions. [2020-11-29 19:30:47,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:30:47,249 INFO L691 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2020-11-29 19:30:47,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 291 transitions. [2020-11-29 19:30:47,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-11-29 19:30:47,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-29 19:30:47,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2020-11-29 19:30:47,274 INFO L714 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2020-11-29 19:30:47,274 INFO L594 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2020-11-29 19:30:47,274 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:30:47,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 291 transitions. [2020-11-29 19:30:47,286 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2020-11-29 19:30:47,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:30:47,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:30:47,288 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:30:47,288 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:30:47,288 INFO L794 eck$LassoCheckResult]: Stem: 1037#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);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(25);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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 888#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 889#L397 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; 962#L405 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 1002#L858 assume 0 != main_~tmp~10; 910#L835 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 911#L985-1 [2020-11-29 19:30:47,289 INFO L796 eck$LassoCheckResult]: Loop: 911#L985-1 assume !false; 1049#L316 assume test_~splverifierCounter~0 < 4; 1062#L317 test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 1084#L325 assume !(0 != test_~tmp~6); 1082#L325-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 1081#L335 assume !(0 != test_~tmp___0~2); 1079#L335-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 1078#L345 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 972#L353-2 assume !(0 != ~pumpRunning~0); 967#L61 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 968#L145 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 983#L119-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 984#L93-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 901#L956-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 902#L961-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 975#L264-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 997#L264-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 998#L270-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 933#L97-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 934#L68 havoc __utac_acc__Specification1_spec__1_#t~ret81, __utac_acc__Specification1_spec__1_#t~ret82, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1065#L916-5 __utac_acc__Specification1_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret81;havoc __utac_acc__Specification1_spec__1_#t~ret81; 1047#L985 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 911#L985-1 [2020-11-29 19:30:47,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:30:47,289 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:30:47,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:30:47,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977867146] [2020-11-29 19:30:47,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:30:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:47,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:47,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:47,505 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:30:47,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:30:47,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1113090801, now seen corresponding path program 1 times [2020-11-29 19:30:47,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:30:47,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633191391] [2020-11-29 19:30:47,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:30:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:47,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:47,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:47,537 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:30:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:30:47,538 INFO L82 PathProgramCache]: Analyzing trace with hash 140214325, now seen corresponding path program 1 times [2020-11-29 19:30:47,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:30:47,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699579982] [2020-11-29 19:30:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:30:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:47,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:30:47,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:30:47,648 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:30:47,828 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 19:32:16,664 WARN L193 SmtUtils]: Spent 1.48 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:33:16,602 WARN L193 SmtUtils]: Spent 59.93 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:33:16,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:33:16 BoogieIcfgContainer [2020-11-29 19:33:16,877 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:33:16,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:33:16,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:33:16,878 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:33:16,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:30:45" (3/4) ... [2020-11-29 19:33:16,882 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:33:16,949 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7a67216a-cbbf-4eb2-baa1-f5df7fc1fa9e/bin/uautomizer/witness.graphml [2020-11-29 19:33:16,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:33:16,951 INFO L168 Benchmark]: Toolchain (without parser) took 154415.65 ms. Allocated memory was 109.1 MB in the beginning and 169.9 MB in the end (delta: 60.8 MB). Free memory was 80.2 MB in the beginning and 48.2 MB in the end (delta: 32.0 MB). Peak memory consumption was 92.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:16,952 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 109.1 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:16,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.53 ms. Allocated memory is still 109.1 MB. Free memory was 80.0 MB in the beginning and 74.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:16,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.22 ms. Allocated memory is still 109.1 MB. Free memory was 74.3 MB in the beginning and 68.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:16,954 INFO L168 Benchmark]: Boogie Preprocessor took 145.41 ms. Allocated memory is still 109.1 MB. Free memory was 68.9 MB in the beginning and 64.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:16,955 INFO L168 Benchmark]: RCFGBuilder took 1974.79 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 64.7 MB in the beginning and 78.0 MB in the end (delta: -13.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:16,956 INFO L168 Benchmark]: BuchiAutomizer took 151298.12 ms. Allocated memory was 132.1 MB in the beginning and 169.9 MB in the end (delta: 37.7 MB). Free memory was 78.0 MB in the beginning and 51.2 MB in the end (delta: 26.7 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:16,957 INFO L168 Benchmark]: Witness Printer took 71.71 ms. Allocated memory is still 169.9 MB. Free memory was 51.2 MB in the beginning and 48.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:16,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 109.1 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 774.53 ms. Allocated memory is still 109.1 MB. Free memory was 80.0 MB in the beginning and 74.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 142.22 ms. Allocated memory is still 109.1 MB. Free memory was 74.3 MB in the beginning and 68.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 145.41 ms. Allocated memory is still 109.1 MB. Free memory was 68.9 MB in the beginning and 64.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1974.79 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 64.7 MB in the beginning and 78.0 MB in the end (delta: -13.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 151298.12 ms. Allocated memory was 132.1 MB in the beginning and 169.9 MB in the end (delta: 37.7 MB). Free memory was 78.0 MB in the beginning and 51.2 MB in the end (delta: 26.7 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB. * Witness Printer took 71.71 ms. Allocated memory is still 169.9 MB. Free memory was 51.2 MB in the beginning and 48.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 211 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 151.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 150.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 542 SDtfs, 489 SDslu, 75 SDs, 0 SdLazy, 45 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 315]: 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=31331, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@564165da=0, NULL=60840, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e7589d4=0, NULL=31332, retValue_acc=0, tmp=0, NULL=0, tmp___1=0, NULL=45658, NULL=0, cleanupTimeShifts=4, retValue_acc=0, tmp=1, NULL=45657, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3aaacb31=0, NULL=0, NULL=0, waterLevel=1, NULL=60836, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70231923=0, \result=1, head=0, pumpRunning=0, NULL=60844, NULL=60842, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f7aaae3=54, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78571d26=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e486f02=0, NULL=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@664ad909=0, NULL=0, tmp___0=0, NULL=60851, tmp=0, head=0, tmp=0, NULL=31333, NULL=60838, NULL=45663, NULL=60847, NULL=0, NULL=60848, retValue_acc=0, NULL=60839, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10dea5d6=0, NULL=60837, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a7e1da0=0, NULL=0, tmp___0=0, NULL=0, NULL=60841, NULL=0, NULL=0, tmp=0, NULL=45659, tmp=0, tmp___0=0, NULL=45660, NULL=0, NULL=0, NULL=0, systemActive=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=60835, \result=0, NULL=45661, NULL=0, NULL=60849, NULL=0, NULL=0, retValue_acc=1, NULL=60850, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ebdf732=0, NULL=60846, retValue_acc=1, tmp___2=54, splverifierCounter=0, NULL=0, \result=0, NULL=60845, NULL=45662, NULL=0, NULL=45664, NULL=60843} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L579] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L776] int cleanupTimeShifts = 4; [L873] int waterLevel = 1; [L874] int methaneLevelCritical = 0; [L849] int retValue_acc ; [L850] int tmp ; [L401] int retValue_acc ; [L404] retValue_acc = 1 [L405] return (retValue_acc); [L856] tmp = valid_product() [L858] COND TRUE \read(tmp) [L306] int splverifierCounter ; [L307] int tmp ; [L308] int tmp___0 ; [L309] int tmp___1 ; [L310] int tmp___2 ; [L313] splverifierCounter = 0 Loop: [L315] COND TRUE 1 [L317] COND TRUE splverifierCounter < 4 [L323] tmp = __VERIFIER_nondet_int() [L325] COND FALSE !(\read(tmp)) [L333] tmp___0 = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp___0)) [L343] tmp___2 = __VERIFIER_nondet_int() [L345] COND TRUE \read(tmp___2) [L297] systemActive = 1 [L61] COND FALSE !(\read(pumpRunning)) [L68] COND TRUE \read(systemActive) [L142] int tmp ; [L145] COND FALSE !(\read(pumpRunning)) [L116] int tmp ; [L119] COND FALSE !(\read(pumpRunning)) [L90] int tmp ; [L93] COND TRUE ! pumpRunning [L256] int retValue_acc ; [L257] int tmp ; [L258] int tmp___0 ; [L953] int retValue_acc ; [L956] COND TRUE waterLevel < 2 [L957] retValue_acc = 1 [L958] return (retValue_acc); [L262] tmp = isHighWaterSensorDry() [L264] COND TRUE \read(tmp) [L265] tmp___0 = 0 [L269] retValue_acc = tmp___0 [L270] return (retValue_acc); [L95] tmp = isHighWaterLevel() [L97] COND FALSE !(\read(tmp)) [L978] int tmp ; [L979] int tmp___0 ; [L912] int retValue_acc ; [L915] retValue_acc = methaneLevelCritical [L916] return (retValue_acc); [L983] tmp = isMethaneLevelCritical() [L985] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...