./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.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_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/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 c534e2971bdf18360cf74a44c61943e42e7f6f94 ................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:20:37,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:20:37,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:20:37,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:20:37,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:20:37,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:20:37,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:20:37,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:20:37,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:20:37,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:20:37,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:20:37,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:20:37,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:20:37,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:20:37,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:20:37,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:20:37,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:20:37,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:20:37,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:20:37,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:20:37,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:20:37,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:20:37,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:20:37,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:20:37,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:20:37,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:20:37,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:20:37,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:20:38,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:20:38,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:20:38,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:20:38,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:20:38,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:20:38,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:20:38,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:20:38,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:20:38,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:20:38,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:20:38,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:20:38,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:20:38,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:20:38,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:20:38,083 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:20:38,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:20:38,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:20:38,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:20:38,088 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:20:38,088 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:20:38,089 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:20:38,089 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:20:38,089 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:20:38,089 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:20:38,091 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:20:38,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:20:38,092 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:20:38,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:20:38,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:20:38,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:20:38,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:20:38,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:20:38,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:20:38,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:20:38,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:20:38,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:20:38,094 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:20:38,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:20:38,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:20:38,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:20:38,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:20:38,096 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:20:38,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:20:38,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:20:38,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:20:38,097 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:20:38,099 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:20:38,099 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_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c534e2971bdf18360cf74a44c61943e42e7f6f94 [2020-11-30 00:20:38,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:20:38,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:20:38,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:20:38,596 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:20:38,601 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:20:38,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2020-11-30 00:20:38,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/data/fa96cba8e/132fae7a93134cf08f2e85c9b852abab/FLAG19b7d34d0 [2020-11-30 00:20:39,406 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:20:39,409 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2020-11-30 00:20:39,448 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/data/fa96cba8e/132fae7a93134cf08f2e85c9b852abab/FLAG19b7d34d0 [2020-11-30 00:20:39,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/data/fa96cba8e/132fae7a93134cf08f2e85c9b852abab [2020-11-30 00:20:39,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:20:39,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:20:39,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:20:39,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:20:39,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:20:39,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:20:39" (1/1) ... [2020-11-30 00:20:39,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4c1ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:39, skipping insertion in model container [2020-11-30 00:20:39,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:20:39" (1/1) ... [2020-11-30 00:20:39,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:20:39,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:20:40,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:20:40,266 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:20:40,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:20:40,496 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:20:40,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40 WrapperNode [2020-11-30 00:20:40,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:20:40,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:20:40,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:20:40,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:20:40,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... [2020-11-30 00:20:40,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... [2020-11-30 00:20:40,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:20:40,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:20:40,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:20:40,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:20:40,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... [2020-11-30 00:20:40,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... [2020-11-30 00:20:40,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... [2020-11-30 00:20:40,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... [2020-11-30 00:20:40,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... [2020-11-30 00:20:40,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... [2020-11-30 00:20:40,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... [2020-11-30 00:20:40,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:20:40,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:20:40,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:20:40,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:20:40,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:20:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:20:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:20:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:20:40,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:20:41,754 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:20:41,759 INFO L298 CfgBuilder]: Removed 82 assume(true) statements. [2020-11-30 00:20:41,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:20:41 BoogieIcfgContainer [2020-11-30 00:20:41,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:20:41,764 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:20:41,765 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:20:41,769 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:20:41,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:20:41,771 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:20:39" (1/3) ... [2020-11-30 00:20:41,773 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6838049e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:20:41, skipping insertion in model container [2020-11-30 00:20:41,773 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:20:41,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:20:40" (2/3) ... [2020-11-30 00:20:41,775 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6838049e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:20:41, skipping insertion in model container [2020-11-30 00:20:41,775 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:20:41,776 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:20:41" (3/3) ... [2020-11-30 00:20:41,780 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-11-30 00:20:41,853 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:20:41,853 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:20:41,853 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:20:41,854 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:20:41,855 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:20:41,855 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:20:41,855 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:20:41,855 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:20:41,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states. [2020-11-30 00:20:41,898 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2020-11-30 00:20:41,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:20:41,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:20:41,910 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:20:41,910 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:41,910 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:20:41,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states. [2020-11-30 00:20:41,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2020-11-30 00:20:41,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:20:41,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:20:41,919 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:20:41,919 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:41,931 INFO L794 eck$LassoCheckResult]: Stem: 31#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 55#L206true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 64#L214true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 63#L170true assume 0 != main_~tmp~1; 21#L143true havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 60#L61-1true [2020-11-30 00:20:41,932 INFO L796 eck$LassoCheckResult]: Loop: 60#L61-1true assume !false; 66#L741true assume test_~splverifierCounter~0 < 4; 15#L742true test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 23#L750true assume !(0 != test_~tmp~6); 24#L750-1true test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 3#L760true assume !(0 != test_~tmp___0~1); 4#L760-1true test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 59#L770true assume 0 != test_~tmp___2~0; 35#L776-1true assume !(0 != ~pumpRunning~0); 50#L597true assume !(0 != ~systemActive~0); 36#L604true havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 38#L849true __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 37#L55true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 60#L61-1true [2020-11-30 00:20:41,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:41,940 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:20:41,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:41,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128794096] [2020-11-30 00:20:41,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:42,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:42,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:42,566 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:42,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:42,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1673895426, now seen corresponding path program 1 times [2020-11-30 00:20:42,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:42,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396065499] [2020-11-30 00:20:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:42,607 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:42,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:42,634 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:42,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:42,647 INFO L82 PathProgramCache]: Analyzing trace with hash 40383512, now seen corresponding path program 1 times [2020-11-30 00:20:42,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:42,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105371078] [2020-11-30 00:20:42,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:42,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:20:42,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105371078] [2020-11-30 00:20:42,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:20:42,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:20:42,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852214368] [2020-11-30 00:20:43,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:20:43,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:20:43,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:20:43,042 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 6 states. [2020-11-30 00:20:43,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:20:43,443 INFO L93 Difference]: Finished difference Result 174 states and 237 transitions. [2020-11-30 00:20:43,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:20:43,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 237 transitions. [2020-11-30 00:20:43,458 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 109 [2020-11-30 00:20:43,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 153 states and 216 transitions. [2020-11-30 00:20:43,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 153 [2020-11-30 00:20:43,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 153 [2020-11-30 00:20:43,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 153 states and 216 transitions. [2020-11-30 00:20:43,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:20:43,482 INFO L691 BuchiCegarLoop]: Abstraction has 153 states and 216 transitions. [2020-11-30 00:20:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states and 216 transitions. [2020-11-30 00:20:43,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 102. [2020-11-30 00:20:43,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 00:20:43,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2020-11-30 00:20:43,531 INFO L714 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-30 00:20:43,531 INFO L594 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-30 00:20:43,532 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:20:43,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2020-11-30 00:20:43,535 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2020-11-30 00:20:43,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:20:43,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:20:43,536 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:20:43,537 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:43,537 INFO L794 eck$LassoCheckResult]: Stem: 290#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 264#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 265#L206 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 310#L214 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 312#L170 assume 0 != main_~tmp~1; 281#L143 havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 271#L61-1 [2020-11-30 00:20:43,538 INFO L796 eck$LassoCheckResult]: Loop: 271#L61-1 assume !false; 311#L741 assume test_~splverifierCounter~0 < 4; 274#L742 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 275#L750 assume !(0 != test_~tmp~6); 285#L750-1 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 257#L760 assume !(0 != test_~tmp___0~1); 258#L760-1 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 260#L770 assume 0 != test_~tmp___2~0; 294#L776-1 assume !(0 != ~pumpRunning~0); 287#L597 assume 0 != ~systemActive~0; 296#L604 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 297#L849 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 298#L55 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 271#L61-1 [2020-11-30 00:20:43,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:43,539 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:20:43,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:43,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303307202] [2020-11-30 00:20:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:43,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:43,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:43,790 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:43,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:43,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1673984799, now seen corresponding path program 1 times [2020-11-30 00:20:43,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:43,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417422386] [2020-11-30 00:20:43,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:43,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:43,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:43,823 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:43,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:43,824 INFO L82 PathProgramCache]: Analyzing trace with hash 40294139, now seen corresponding path program 1 times [2020-11-30 00:20:43,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:43,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652954893] [2020-11-30 00:20:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:20:43,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652954893] [2020-11-30 00:20:43,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:20:43,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:20:43,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042559261] [2020-11-30 00:20:44,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:20:44,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:20:44,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:20:44,014 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2020-11-30 00:20:44,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:20:44,379 INFO L93 Difference]: Finished difference Result 319 states and 461 transitions. [2020-11-30 00:20:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:20:44,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 461 transitions. [2020-11-30 00:20:44,390 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 240 [2020-11-30 00:20:44,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 461 transitions. [2020-11-30 00:20:44,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2020-11-30 00:20:44,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2020-11-30 00:20:44,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 461 transitions. [2020-11-30 00:20:44,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:20:44,422 INFO L691 BuchiCegarLoop]: Abstraction has 319 states and 461 transitions. [2020-11-30 00:20:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 461 transitions. [2020-11-30 00:20:44,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 198. [2020-11-30 00:20:44,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-30 00:20:44,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2020-11-30 00:20:44,457 INFO L714 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2020-11-30 00:20:44,457 INFO L594 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2020-11-30 00:20:44,457 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:20:44,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 274 transitions. [2020-11-30 00:20:44,460 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 144 [2020-11-30 00:20:44,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:20:44,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:20:44,461 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:20:44,461 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:44,463 INFO L794 eck$LassoCheckResult]: Stem: 733#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 704#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 705#L206 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 765#L214 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 774#L170 assume 0 != main_~tmp~1; 720#L143 havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 709#L61-1 [2020-11-30 00:20:44,464 INFO L796 eck$LassoCheckResult]: Loop: 709#L61-1 assume !false; 769#L741 assume test_~splverifierCounter~0 < 4; 712#L742 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 713#L750 assume !(0 != test_~tmp~6); 724#L750-1 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 696#L760 assume !(0 != test_~tmp___0~1); 697#L760-1 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 699#L770 assume 0 != test_~tmp___2~0; 736#L776-1 assume !(0 != ~pumpRunning~0); 840#L597 assume 0 != ~systemActive~0; 740#L604 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 741#L849 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 742#L55 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 743#L881 __utac_acc__Specification3_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 772#L61 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 709#L61-1 [2020-11-30 00:20:44,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:20:44,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:44,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732232704] [2020-11-30 00:20:44,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:44,537 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:44,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:44,663 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:44,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:44,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1913349525, now seen corresponding path program 1 times [2020-11-30 00:20:44,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:44,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129638550] [2020-11-30 00:20:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:44,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:44,680 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:44,685 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:20:44,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:44,686 INFO L82 PathProgramCache]: Analyzing trace with hash 67967279, now seen corresponding path program 1 times [2020-11-30 00:20:44,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:44,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382391144] [2020-11-30 00:20:44,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:44,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:20:44,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:20:44,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:35,687 WARN L193 SmtUtils]: Spent 1.84 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:24:00,449 WARN L193 SmtUtils]: Spent 1.41 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:24:00,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:24:00 BoogieIcfgContainer [2020-11-30 00:24:00,899 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:24:00,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:24:00,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:24:00,901 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:24:00,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:20:41" (3/4) ... [2020-11-30 00:24:00,905 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:24:00,974 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e15f3a6f-544d-4ea6-a904-78b1d3f69e2b/bin/uautomizer/witness.graphml [2020-11-30 00:24:00,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:24:00,991 INFO L168 Benchmark]: Toolchain (without parser) took 201315.24 ms. Allocated memory was 102.8 MB in the beginning and 155.2 MB in the end (delta: 52.4 MB). Free memory was 67.6 MB in the beginning and 45.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:24:00,992 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 102.8 MB. Free memory was 76.7 MB in the beginning and 76.7 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:24:00,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.02 ms. Allocated memory is still 102.8 MB. Free memory was 67.6 MB in the beginning and 69.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:24:00,994 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.29 ms. Allocated memory is still 102.8 MB. Free memory was 69.2 MB in the beginning and 66.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:24:00,994 INFO L168 Benchmark]: Boogie Preprocessor took 52.94 ms. Allocated memory is still 102.8 MB. Free memory was 66.5 MB in the beginning and 65.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:24:00,995 INFO L168 Benchmark]: RCFGBuilder took 1131.84 ms. Allocated memory is still 102.8 MB. Free memory was 65.0 MB in the beginning and 59.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:24:00,995 INFO L168 Benchmark]: BuchiAutomizer took 199135.15 ms. Allocated memory was 102.8 MB in the beginning and 155.2 MB in the end (delta: 52.4 MB). Free memory was 59.6 MB in the beginning and 47.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 75.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:24:00,996 INFO L168 Benchmark]: Witness Printer took 89.22 ms. Allocated memory is still 155.2 MB. Free memory was 47.7 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:24:01,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 102.8 MB. Free memory was 76.7 MB in the beginning and 76.7 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 817.02 ms. Allocated memory is still 102.8 MB. Free memory was 67.6 MB in the beginning and 69.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.29 ms. Allocated memory is still 102.8 MB. Free memory was 69.2 MB in the beginning and 66.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.94 ms. Allocated memory is still 102.8 MB. Free memory was 66.5 MB in the beginning and 65.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1131.84 ms. Allocated memory is still 102.8 MB. Free memory was 65.0 MB in the beginning and 59.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 199135.15 ms. Allocated memory was 102.8 MB in the beginning and 155.2 MB in the end (delta: 52.4 MB). Free memory was 59.6 MB in the beginning and 47.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 75.7 MB. Max. memory is 16.1 GB. * Witness Printer took 89.22 ms. Allocated memory is still 155.2 MB. Free memory was 47.7 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 198 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 199.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 197.9s. Construction of modules took 0.5s. 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, 172 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 198 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 183 SDtfs, 567 SDslu, 697 SDs, 0 SdLazy, 82 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s 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: 740]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7372} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=7372, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fcd8e8d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f2b5192=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64f622a8=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=7401, NULL=7400, NULL=7374, methaneLevelCritical=0, NULL=7398, NULL=7386, NULL=7391, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@98d7da2=0, tmp___1=0, NULL=0, NULL=0, tmp___0=1, NULL=7375, tmp=0, cleanupTimeShifts=4, NULL=7390, NULL=7397, NULL=7388, NULL=7378, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=7382, retValue_acc=0, NULL=7379, NULL=0, NULL=0, NULL=0, NULL=7376, NULL=0, NULL=0, NULL=7392, \result=1, head=0, pumpRunning=0, \result=0, NULL=7399, NULL=7385, tmp=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28d595bb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4907b5fe=60, NULL=0, NULL=7395, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@631c6ebb=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=7393, NULL=0, retValue_acc=1, tmp___2=60, NULL=7396, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=7394, NULL=7387, NULL=7373, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72745208=0, head=0, NULL=7389, NULL=0, NULL=0, NULL=7380, NULL=7384, NULL=7383, NULL=7381} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L80] int cleanupTimeShifts = 4; [L388] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L161] int retValue_acc ; [L162] int tmp ; [L210] int retValue_acc ; [L213] retValue_acc = 1 [L214] return (retValue_acc); [L168] tmp = valid_product() [L170] COND TRUE \read(tmp) [L731] int splverifierCounter ; [L732] int tmp ; [L733] int tmp___0 ; [L734] int tmp___1 ; [L735] int tmp___2 ; [L738] splverifierCounter = 0 Loop: [L740] COND TRUE 1 [L742] COND TRUE splverifierCounter < 4 [L748] tmp = __VERIFIER_nondet_int() [L750] COND FALSE !(\read(tmp)) [L758] tmp___0 = __VERIFIER_nondet_int() [L760] COND FALSE !(\read(tmp___0)) [L768] tmp___2 = __VERIFIER_nondet_int() [L770] COND TRUE \read(tmp___2) [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); [L59] tmp___0 = getWaterLevel() [L61] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...