./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.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_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/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 d4eb13f545cea9ac583f40da9d0bc0269dc50786 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:25:44,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:25:44,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:25:44,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:25:44,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:25:44,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:25:44,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:25:44,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:25:44,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:25:44,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:25:44,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:25:44,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:25:44,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:25:44,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:25:44,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:25:44,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:25:44,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:25:44,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:25:45,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:25:45,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:25:45,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:25:45,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:25:45,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:25:45,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:25:45,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:25:45,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:25:45,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:25:45,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:25:45,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:25:45,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:25:45,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:25:45,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:25:45,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:25:45,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:25:45,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:25:45,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:25:45,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:25:45,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:25:45,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:25:45,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:25:45,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:25:45,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:25:45,111 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:25:45,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:25:45,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:25:45,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:25:45,115 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:25:45,115 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:25:45,115 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:25:45,115 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:25:45,116 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:25:45,116 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:25:45,116 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:25:45,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:25:45,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:25:45,117 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:25:45,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:25:45,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:25:45,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:25:45,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:25:45,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:25:45,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:25:45,132 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:25:45,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:25:45,132 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:25:45,133 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:25:45,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:25:45,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:25:45,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:25:45,134 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:25:45,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:25:45,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:25:45,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:25:45,137 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:25:45,138 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:25:45,139 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_d3032607-ca5b-4e89-aa82-48167ab56d94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4eb13f545cea9ac583f40da9d0bc0269dc50786 [2020-11-29 18:25:45,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:25:45,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:25:45,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:25:45,552 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:25:45,553 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:25:45,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-11-29 18:25:45,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/data/93388a3d3/9c1c2e4c308b440c9e09cc08608e5e31/FLAGd3ff85ba3 [2020-11-29 18:25:46,388 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:25:46,389 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-11-29 18:25:46,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/data/93388a3d3/9c1c2e4c308b440c9e09cc08608e5e31/FLAGd3ff85ba3 [2020-11-29 18:25:46,656 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/data/93388a3d3/9c1c2e4c308b440c9e09cc08608e5e31 [2020-11-29 18:25:46,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:25:46,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:25:46,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:25:46,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:25:46,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:25:46,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:25:46" (1/1) ... [2020-11-29 18:25:46,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fb8159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:46, skipping insertion in model container [2020-11-29 18:25:46,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:25:46" (1/1) ... [2020-11-29 18:25:46,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:25:46,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:25:47,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:25:47,211 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:25:47,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:25:47,379 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:25:47,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47 WrapperNode [2020-11-29 18:25:47,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:25:47,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:25:47,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:25:47,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:25:47,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... [2020-11-29 18:25:47,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... [2020-11-29 18:25:47,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:25:47,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:25:47,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:25:47,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:25:47,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... [2020-11-29 18:25:47,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... [2020-11-29 18:25:47,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... [2020-11-29 18:25:47,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... [2020-11-29 18:25:47,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... [2020-11-29 18:25:47,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... [2020-11-29 18:25:47,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... [2020-11-29 18:25:47,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:25:47,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:25:47,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:25:47,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:25:47,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/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 18:25:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:25:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:25:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:25:47,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:25:48,963 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:25:48,964 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-11-29 18:25:48,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:25:48 BoogieIcfgContainer [2020-11-29 18:25:48,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:25:48,967 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:25:48,967 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:25:48,978 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:25:48,979 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:25:48,979 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:25:46" (1/3) ... [2020-11-29 18:25:48,984 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b3884ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:25:48, skipping insertion in model container [2020-11-29 18:25:48,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:25:48,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:25:47" (2/3) ... [2020-11-29 18:25:48,985 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b3884ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:25:48, skipping insertion in model container [2020-11-29 18:25:48,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:25:48,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:25:48" (3/3) ... [2020-11-29 18:25:48,987 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2020-11-29 18:25:49,062 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:25:49,063 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:25:49,063 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:25:49,063 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:25:49,063 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:25:49,063 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:25:49,064 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:25:49,064 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:25:49,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-29 18:25:49,132 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 18:25:49,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:25:49,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:25:49,143 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:25:49,143 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:25:49,143 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:25:49,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2020-11-29 18:25:49,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 18:25:49,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:25:49,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:25:49,153 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:25:49,153 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:25:49,159 INFO L794 eck$LassoCheckResult]: Stem: 50#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.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~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 21#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 75#L840true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 33#L848true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 81#L935true assume 0 != main_~tmp~8; 66#L912true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 27#L797-1true [2020-11-29 18:25:49,160 INFO L796 eck$LassoCheckResult]: Loop: 27#L797-1true assume !false; 80#L434true assume test_~splverifierCounter~0 < 4; 23#L435true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 51#L443true assume !(0 != test_~tmp~3); 53#L443-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 36#L453true assume !(0 != test_~tmp___0~0); 3#L453-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 91#L463true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 14#L471-1true assume !(0 != ~pumpRunning~0); 29#L508true assume !(0 != ~systemActive~0); 6#L515true havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 11#L738-1true __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 24#L797true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 27#L797-1true [2020-11-29 18:25:49,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:25:49,171 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 18:25:49,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:25:49,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689641789] [2020-11-29 18:25:49,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:25:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:49,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:49,840 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:49,910 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:25:49,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:25:49,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1671648178, now seen corresponding path program 1 times [2020-11-29 18:25:49,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:25:49,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485411146] [2020-11-29 18:25:49,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:25:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:25:50,020 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 18:25:50,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485411146] [2020-11-29 18:25:50,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:25:50,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:25:50,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640945494] [2020-11-29 18:25:50,030 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:25:50,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:25:50,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:25:50,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:25:50,059 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2020-11-29 18:25:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:25:50,173 INFO L93 Difference]: Finished difference Result 166 states and 234 transitions. [2020-11-29 18:25:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:25:50,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 234 transitions. [2020-11-29 18:25:50,205 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2020-11-29 18:25:50,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 152 states and 219 transitions. [2020-11-29 18:25:50,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2020-11-29 18:25:50,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2020-11-29 18:25:50,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 219 transitions. [2020-11-29 18:25:50,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:25:50,222 INFO L691 BuchiCegarLoop]: Abstraction has 152 states and 219 transitions. [2020-11-29 18:25:50,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 219 transitions. [2020-11-29 18:25:50,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2020-11-29 18:25:50,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-29 18:25:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2020-11-29 18:25:50,271 INFO L714 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-11-29 18:25:50,271 INFO L594 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2020-11-29 18:25:50,271 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:25:50,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2020-11-29 18:25:50,276 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2020-11-29 18:25:50,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:25:50,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:25:50,277 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:25:50,277 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:25:50,278 INFO L794 eck$LassoCheckResult]: Stem: 340#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.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~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 298#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 299#L840 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 315#L848 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 316#L935 assume 0 != main_~tmp~8; 351#L912 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 352#L797-1 [2020-11-29 18:25:50,278 INFO L796 eck$LassoCheckResult]: Loop: 352#L797-1 assume !false; 385#L434 assume test_~splverifierCounter~0 < 4; 386#L435 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 405#L443 assume !(0 != test_~tmp~3); 403#L443-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 402#L453 assume !(0 != test_~tmp___0~0); 400#L453-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 399#L463 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 365#L471-1 assume !(0 != ~pumpRunning~0); 396#L508 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 392#L540 assume !(0 == ~pumpRunning~0); 389#L515 havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 388#L738-1 __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 387#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 352#L797-1 [2020-11-29 18:25:50,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:25:50,279 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 18:25:50,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:25:50,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528282686] [2020-11-29 18:25:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:25:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:50,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:50,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:50,452 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:25:50,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:25:50,454 INFO L82 PathProgramCache]: Analyzing trace with hash -323255267, now seen corresponding path program 1 times [2020-11-29 18:25:50,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:25:50,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19695821] [2020-11-29 18:25:50,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:25:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:25:50,476 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 18:25:50,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19695821] [2020-11-29 18:25:50,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:25:50,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:25:50,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549011607] [2020-11-29 18:25:50,478 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:25:50,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:25:50,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:25:50,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:25:50,479 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand 3 states. [2020-11-29 18:25:50,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:25:50,649 INFO L93 Difference]: Finished difference Result 233 states and 322 transitions. [2020-11-29 18:25:50,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:25:50,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 322 transitions. [2020-11-29 18:25:50,657 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2020-11-29 18:25:50,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 233 states and 322 transitions. [2020-11-29 18:25:50,662 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 233 [2020-11-29 18:25:50,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 233 [2020-11-29 18:25:50,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 322 transitions. [2020-11-29 18:25:50,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:25:50,670 INFO L691 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2020-11-29 18:25:50,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 322 transitions. [2020-11-29 18:25:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-11-29 18:25:50,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-11-29 18:25:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 322 transitions. [2020-11-29 18:25:50,696 INFO L714 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2020-11-29 18:25:50,696 INFO L594 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2020-11-29 18:25:50,696 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:25:50,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states and 322 transitions. [2020-11-29 18:25:50,699 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2020-11-29 18:25:50,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:25:50,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:25:50,701 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:25:50,701 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] [2020-11-29 18:25:50,701 INFO L794 eck$LassoCheckResult]: Stem: 721#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.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~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 687#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 688#L840 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 702#L848 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 703#L935 assume 0 != main_~tmp~8; 732#L912 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 733#L797-1 [2020-11-29 18:25:50,702 INFO L796 eck$LassoCheckResult]: Loop: 733#L797-1 assume !false; 769#L434 assume test_~splverifierCounter~0 < 4; 768#L435 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 767#L443 assume !(0 != test_~tmp~3); 764#L443-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 765#L453 assume !(0 != test_~tmp___0~0); 759#L453-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 760#L463 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 669#L471-1 assume !(0 != ~pumpRunning~0); 676#L508 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 697#L540 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 680#L778 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 681#L783 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 724#L660 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 730#L660-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 723#L666 processEnvironment_#t~ret46 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret46;havoc processEnvironment_#t~ret46; 679#L544 assume !(0 != processEnvironment_~tmp~4); 672#L515 havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 777#L738-1 __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 778#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 733#L797-1 [2020-11-29 18:25:50,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:25:50,702 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 18:25:50,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:25:50,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734973790] [2020-11-29 18:25:50,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:25:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:50,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:50,868 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:50,897 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:25:50,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:25:50,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1551152023, now seen corresponding path program 1 times [2020-11-29 18:25:50,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:25:50,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426799514] [2020-11-29 18:25:50,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:25:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:50,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:50,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:50,936 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:25:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:25:50,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1536440049, now seen corresponding path program 1 times [2020-11-29 18:25:50,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:25:50,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691179906] [2020-11-29 18:25:50,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:25:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:51,021 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:25:51,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:25:51,096 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:25:51,452 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 18:25:51,572 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-11-29 18:27:24,145 WARN L193 SmtUtils]: Spent 1.54 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 18:28:25,779 WARN L193 SmtUtils]: Spent 1.03 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 18:28:26,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:28:26 BoogieIcfgContainer [2020-11-29 18:28:26,110 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:28:26,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:28:26,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:28:26,111 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:28:26,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:25:48" (3/4) ... [2020-11-29 18:28:26,115 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:28:26,191 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d3032607-ca5b-4e89-aa82-48167ab56d94/bin/uautomizer/witness.graphml [2020-11-29 18:28:26,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:28:26,193 INFO L168 Benchmark]: Toolchain (without parser) took 159518.44 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 74.0 MB in the beginning and 86.6 MB in the end (delta: -12.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:28:26,194 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 75.5 MB. Free memory is still 51.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:28:26,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.37 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 56.1 MB in the end (delta: 17.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:28:26,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.56 ms. Allocated memory is still 96.5 MB. Free memory was 56.1 MB in the beginning and 52.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:28:26,195 INFO L168 Benchmark]: Boogie Preprocessor took 118.59 ms. Allocated memory is still 96.5 MB. Free memory was 52.8 MB in the beginning and 74.2 MB in the end (delta: -21.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:28:26,196 INFO L168 Benchmark]: RCFGBuilder took 1351.85 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 49.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:28:26,196 INFO L168 Benchmark]: BuchiAutomizer took 157142.96 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 49.8 MB in the beginning and 88.6 MB in the end (delta: -38.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:28:26,197 INFO L168 Benchmark]: Witness Printer took 81.16 ms. Allocated memory is still 134.2 MB. Free memory was 88.6 MB in the beginning and 86.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:28:26,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 75.5 MB. Free memory is still 51.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 698.37 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 56.1 MB in the end (delta: 17.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.56 ms. Allocated memory is still 96.5 MB. Free memory was 56.1 MB in the beginning and 52.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.59 ms. Allocated memory is still 96.5 MB. Free memory was 52.8 MB in the beginning and 74.2 MB in the end (delta: -21.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1351.85 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 49.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 157142.96 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 49.8 MB in the beginning and 88.6 MB in the end (delta: -38.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 16.1 GB. * Witness Printer took 81.16 ms. Allocated memory is still 134.2 MB. Free memory was 88.6 MB in the beginning and 86.6 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 3 locations. The remainder module has 233 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 157.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 156.4s. Construction of modules took 0.1s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 233 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 230 SDtfs, 210 SDslu, 158 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 433]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=16035} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=16035, NULL=68019, NULL=0, NULL=68016, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d9df335=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75c14861=69, NULL=68028, NULL=68033, methaneLevelCritical=0, NULL=68026, retValue_acc=1, tmp___0=0, retValue_acc=0, tmp=0, NULL=0, NULL=0, tmp___1=0, NULL=68017, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7898995=0, tmp___0=0, NULL=0, NULL=0, NULL=68035, NULL=68030, NULL=68022, cleanupTimeShifts=4, NULL=68024, NULL=68015, NULL=68027, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4546e869=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a07297=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c15e83b=0, NULL=0, systemActive=1, waterLevel=1, NULL=68020, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2783e762=0, NULL=0, NULL=68029, retValue_acc=0, \result=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=68032, NULL=0, NULL=0, retValue_acc=0, NULL=16036, \result=1, head=0, pumpRunning=0, retValue_acc=1, \result=0, NULL=16037, tmp=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=68025, \result=1, NULL=68018, NULL=0, NULL=68021, NULL=0, NULL=68014, tmp___2=69, NULL=0, NULL=68023, NULL=46649, tmp=1, splverifierCounter=0, NULL=0, \result=0, NULL=68031, NULL=46648, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eae7e99=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e95de72=0, head=0, tmp=0, NULL=0, NULL=0, NULL=16038, NULL=0, NULL=0, NULL=46647, NULL=68034} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L695] int waterLevel = 1; [L696] int methaneLevelCritical = 0; [L853] int cleanupTimeShifts = 4; [L926] int retValue_acc ; [L927] int tmp ; [L844] int retValue_acc ; [L847] retValue_acc = 1 [L848] return (retValue_acc); [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L424] int splverifierCounter ; [L425] int tmp ; [L426] int tmp___0 ; [L427] int tmp___1 ; [L428] int tmp___2 ; [L431] splverifierCounter = 0 Loop: [L433] COND TRUE 1 [L435] COND TRUE splverifierCounter < 4 [L441] tmp = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp)) [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND FALSE !(\read(tmp___0)) [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L689] systemActive = 1 [L508] COND FALSE !(\read(pumpRunning)) [L515] COND TRUE \read(systemActive) [L537] int tmp ; [L540] COND TRUE ! pumpRunning [L652] int retValue_acc ; [L653] int tmp ; [L654] int tmp___0 ; [L775] int retValue_acc ; [L778] COND TRUE waterLevel < 2 [L779] retValue_acc = 1 [L780] return (retValue_acc); [L658] tmp = isHighWaterSensorDry() [L660] COND TRUE \read(tmp) [L661] tmp___0 = 0 [L665] retValue_acc = tmp___0 [L666] return (retValue_acc); [L542] tmp = isHighWaterLevel() [L544] COND FALSE !(\read(tmp)) [L790] int tmp ; [L791] int tmp___0 ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...