./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product37.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_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/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 b6dd0865ec13f793a91d3f0814cabffabbadeed3 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:37:12,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:37:12,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:37:12,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:37:12,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:37:12,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:37:12,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:37:12,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:37:12,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:37:12,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:37:12,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:37:12,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:37:12,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:37:12,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:37:12,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:37:12,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:37:12,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:37:12,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:37:12,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:37:12,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:37:12,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:37:12,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:37:12,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:37:12,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:37:12,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:37:12,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:37:12,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:37:12,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:37:12,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:37:12,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:37:12,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:37:12,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:37:12,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:37:12,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:37:12,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:37:12,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:37:12,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:37:12,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:37:12,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:37:12,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:37:12,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:37:12,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:37:12,156 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:37:12,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:37:12,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:37:12,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:37:12,158 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:37:12,159 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:37:12,159 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:37:12,160 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:37:12,160 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:37:12,160 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:37:12,161 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:37:12,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:37:12,161 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:37:12,162 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:37:12,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:37:12,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:37:12,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:37:12,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:37:12,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:37:12,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:37:12,165 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:37:12,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:37:12,165 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:37:12,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:37:12,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:37:12,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:37:12,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:37:12,166 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:37:12,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:37:12,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:37:12,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:37:12,167 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:37:12,168 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:37:12,168 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_c8e5090f-80b0-418d-974b-bc4187c23b14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6dd0865ec13f793a91d3f0814cabffabbadeed3 [2020-11-29 19:37:12,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:37:12,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:37:12,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:37:12,450 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:37:12,451 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:37:12,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2020-11-29 19:37:12,539 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/data/193a83e12/6a70d2997a9b483b844904a128b039b6/FLAG956ea30ab [2020-11-29 19:37:13,091 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:37:13,092 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2020-11-29 19:37:13,111 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/data/193a83e12/6a70d2997a9b483b844904a128b039b6/FLAG956ea30ab [2020-11-29 19:37:13,390 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/data/193a83e12/6a70d2997a9b483b844904a128b039b6 [2020-11-29 19:37:13,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:37:13,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:37:13,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:37:13,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:37:13,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:37:13,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:37:13" (1/1) ... [2020-11-29 19:37:13,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b86fdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:13, skipping insertion in model container [2020-11-29 19:37:13,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:37:13" (1/1) ... [2020-11-29 19:37:13,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:37:13,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:37:13,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:37:13,857 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:37:13,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:37:14,001 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:37:14,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14 WrapperNode [2020-11-29 19:37:14,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:37:14,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:37:14,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:37:14,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:37:14,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... [2020-11-29 19:37:14,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... [2020-11-29 19:37:14,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:37:14,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:37:14,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:37:14,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:37:14,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... [2020-11-29 19:37:14,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... [2020-11-29 19:37:14,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... [2020-11-29 19:37:14,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... [2020-11-29 19:37:14,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... [2020-11-29 19:37:14,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... [2020-11-29 19:37:14,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... [2020-11-29 19:37:14,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:37:14,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:37:14,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:37:14,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:37:14,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:37:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:37:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:37:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:37:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:37:15,426 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:37:15,427 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-11-29 19:37:15,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:37:15 BoogieIcfgContainer [2020-11-29 19:37:15,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:37:15,429 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:37:15,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:37:15,433 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:37:15,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:37:15,434 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:37:13" (1/3) ... [2020-11-29 19:37:15,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@217b687b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:37:15, skipping insertion in model container [2020-11-29 19:37:15,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:37:15,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:37:14" (2/3) ... [2020-11-29 19:37:15,436 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@217b687b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:37:15, skipping insertion in model container [2020-11-29 19:37:15,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:37:15,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:37:15" (3/3) ... [2020-11-29 19:37:15,437 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-11-29 19:37:15,480 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:37:15,480 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:37:15,480 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:37:15,480 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:37:15,480 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:37:15,481 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:37:15,481 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:37:15,481 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:37:15,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 19:37:15,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 19:37:15,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:37:15,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:37:15,553 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:37:15,553 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:37:15,553 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:37:15,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2020-11-29 19:37:15,574 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 19:37:15,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:37:15,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:37:15,577 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:37:15,577 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:37:15,590 INFO L794 eck$LassoCheckResult]: Stem: 95#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~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 108#L572true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 109#L580true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 98#L498true assume 0 != main_~tmp~3; 53#L471true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 91#L523-1true [2020-11-29 19:37:15,591 INFO L796 eck$LassoCheckResult]: Loop: 91#L523-1true assume !false; 85#L779true assume test_~splverifierCounter~0 < 4; 27#L780true test_~tmp~8 := test_#t~nondet66;havoc test_#t~nondet66; 28#L788true assume !(0 != test_~tmp~8); 29#L788-1true test_~tmp___0~2 := test_#t~nondet67;havoc test_#t~nondet67; 94#L798true assume !(0 != test_~tmp___0~2); 97#L798-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 12#L808true assume 0 != test_~tmp___2~0; 111#L814-2true assume !(0 != ~pumpRunning~0); 107#L597true assume !(0 != ~systemActive~0); 21#L604true havoc __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_#t~ret44, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 5#L877-1true __utac_acc__Specification1_spec__1_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret43;havoc __utac_acc__Specification1_spec__1_#t~ret43; 86#L523true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 91#L523-1true [2020-11-29 19:37:15,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:37:15,598 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:37:15,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:37:15,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954259482] [2020-11-29 19:37:15,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:37:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:15,971 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:16,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:16,136 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:37:16,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:37:16,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1679990652, now seen corresponding path program 1 times [2020-11-29 19:37:16,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:37:16,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114966844] [2020-11-29 19:37:16,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:37:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:16,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:16,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:16,162 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:37:16,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:37:16,164 INFO L82 PathProgramCache]: Analyzing trace with hash 34288286, now seen corresponding path program 1 times [2020-11-29 19:37:16,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:37:16,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009924527] [2020-11-29 19:37:16,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:37:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:37:16,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:37:16,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009924527] [2020-11-29 19:37:16,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:37:16,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:37:16,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946313109] [2020-11-29 19:37:16,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:37:16,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:37:16,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:37:16,549 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2020-11-29 19:37:16,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:37:16,906 INFO L93 Difference]: Finished difference Result 108 states and 154 transitions. [2020-11-29 19:37:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:37:16,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 154 transitions. [2020-11-29 19:37:16,911 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 19:37:16,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 147 transitions. [2020-11-29 19:37:16,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2020-11-29 19:37:16,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2020-11-29 19:37:16,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 147 transitions. [2020-11-29 19:37:16,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:37:16,920 INFO L691 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-29 19:37:16,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 147 transitions. [2020-11-29 19:37:16,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-11-29 19:37:16,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 19:37:16,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2020-11-29 19:37:16,978 INFO L714 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-29 19:37:16,978 INFO L594 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2020-11-29 19:37:16,978 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:37:16,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 147 transitions. [2020-11-29 19:37:16,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 19:37:16,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:37:16,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:37:16,981 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:37:16,981 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:37:16,981 INFO L794 eck$LassoCheckResult]: Stem: 334#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~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 247#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 248#L572 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 337#L580 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 335#L498 assume 0 != main_~tmp~3; 315#L471 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 278#L523-1 [2020-11-29 19:37:16,982 INFO L796 eck$LassoCheckResult]: Loop: 278#L523-1 assume !false; 330#L779 assume test_~splverifierCounter~0 < 4; 281#L780 test_~tmp~8 := test_#t~nondet66;havoc test_#t~nondet66; 282#L788 assume !(0 != test_~tmp~8); 250#L788-1 test_~tmp___0~2 := test_#t~nondet67;havoc test_#t~nondet67; 283#L798 assume !(0 != test_~tmp___0~2); 332#L798-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 257#L808 assume 0 != test_~tmp___2~0; 258#L814-2 assume !(0 != ~pumpRunning~0); 303#L597 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 336#L655 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 251#L629-1 assume !(0 == ~pumpRunning~0); 252#L604 havoc __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_#t~ret44, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 241#L877-1 __utac_acc__Specification1_spec__1_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret43;havoc __utac_acc__Specification1_spec__1_#t~ret43; 242#L523 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 278#L523-1 [2020-11-29 19:37:16,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:37:16,982 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:37:16,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:37:16,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644010377] [2020-11-29 19:37:16,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:37:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:17,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:17,121 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:17,138 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:37:17,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:37:17,139 INFO L82 PathProgramCache]: Analyzing trace with hash -2003597157, now seen corresponding path program 1 times [2020-11-29 19:37:17,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:37:17,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619043940] [2020-11-29 19:37:17,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:37:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:37:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:37:17,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619043940] [2020-11-29 19:37:17,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:37:17,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:37:17,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400828989] [2020-11-29 19:37:17,154 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:37:17,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:37:17,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:37:17,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:37:17,156 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. cyclomatic complexity: 48 Second operand 3 states. [2020-11-29 19:37:17,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:37:17,301 INFO L93 Difference]: Finished difference Result 142 states and 195 transitions. [2020-11-29 19:37:17,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:37:17,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 195 transitions. [2020-11-29 19:37:17,304 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2020-11-29 19:37:17,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 142 states and 195 transitions. [2020-11-29 19:37:17,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 142 [2020-11-29 19:37:17,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2020-11-29 19:37:17,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 195 transitions. [2020-11-29 19:37:17,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:37:17,309 INFO L691 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-29 19:37:17,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states and 195 transitions. [2020-11-29 19:37:17,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-11-29 19:37:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-29 19:37:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2020-11-29 19:37:17,330 INFO L714 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-29 19:37:17,330 INFO L594 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2020-11-29 19:37:17,330 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:37:17,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 195 transitions. [2020-11-29 19:37:17,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2020-11-29 19:37:17,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:37:17,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:37:17,338 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:37:17,339 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:37:17,339 INFO L794 eck$LassoCheckResult]: Stem: 587#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~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 496#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 497#L572 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 591#L580 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 588#L498 assume 0 != main_~tmp~3; 567#L471 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 530#L523-1 [2020-11-29 19:37:17,339 INFO L796 eck$LassoCheckResult]: Loop: 530#L523-1 assume !false; 582#L779 assume test_~splverifierCounter~0 < 4; 533#L780 test_~tmp~8 := test_#t~nondet66;havoc test_#t~nondet66; 534#L788 assume !(0 != test_~tmp~8); 499#L788-1 test_~tmp___0~2 := test_#t~nondet67;havoc test_#t~nondet67; 535#L798 assume !(0 != test_~tmp___0~2); 585#L798-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 505#L808 assume 0 != test_~tmp___2~0; 506#L814-2 assume !(0 != ~pumpRunning~0); 590#L597 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 589#L655 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 500#L629-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 501#L917-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 550#L922-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 574#L757-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 575#L757-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 564#L763-1 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 565#L633-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 523#L604 havoc __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_#t~ret44, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 490#L877-1 __utac_acc__Specification1_spec__1_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret43;havoc __utac_acc__Specification1_spec__1_#t~ret43; 491#L523 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 530#L523-1 [2020-11-29 19:37:17,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:37:17,339 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:37:17,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:37:17,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456710853] [2020-11-29 19:37:17,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:37:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:17,400 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:17,470 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:17,497 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:37:17,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:37:17,498 INFO L82 PathProgramCache]: Analyzing trace with hash 456147495, now seen corresponding path program 1 times [2020-11-29 19:37:17,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:37:17,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128099033] [2020-11-29 19:37:17,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:37:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:17,504 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:17,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:17,516 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:37:17,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:37:17,517 INFO L82 PathProgramCache]: Analyzing trace with hash 912218689, now seen corresponding path program 1 times [2020-11-29 19:37:17,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:37:17,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062498676] [2020-11-29 19:37:17,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:37:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:17,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:37:17,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:37:17,635 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:37:17,834 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 19:38:31,130 WARN L193 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:39:17,672 WARN L193 SmtUtils]: Spent 46.53 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:39:17,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:39:17 BoogieIcfgContainer [2020-11-29 19:39:17,868 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:39:17,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:39:17,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:39:17,869 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:39:17,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:37:15" (3/4) ... [2020-11-29 19:39:17,872 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:39:17,933 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c8e5090f-80b0-418d-974b-bc4187c23b14/bin/uautomizer/witness.graphml [2020-11-29 19:39:17,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:39:17,934 INFO L168 Benchmark]: Toolchain (without parser) took 124535.17 ms. Allocated memory was 100.7 MB in the beginning and 172.0 MB in the end (delta: 71.3 MB). Free memory was 67.2 MB in the beginning and 44.1 MB in the end (delta: 23.2 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:17,935 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 100.7 MB. Free memory was 74.1 MB in the beginning and 74.0 MB in the end (delta: 30.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:39:17,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.63 ms. Allocated memory is still 100.7 MB. Free memory was 67.0 MB in the beginning and 67.9 MB in the end (delta: -832.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:17,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.36 ms. Allocated memory is still 100.7 MB. Free memory was 67.9 MB in the beginning and 64.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:17,937 INFO L168 Benchmark]: Boogie Preprocessor took 77.36 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 61.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:17,938 INFO L168 Benchmark]: RCFGBuilder took 1273.50 ms. Allocated memory is still 100.7 MB. Free memory was 61.6 MB in the beginning and 43.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:17,940 INFO L168 Benchmark]: BuchiAutomizer took 122438.69 ms. Allocated memory was 100.7 MB in the beginning and 172.0 MB in the end (delta: 71.3 MB). Free memory was 43.0 MB in the beginning and 47.1 MB in the end (delta: -4.0 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:17,940 INFO L168 Benchmark]: Witness Printer took 64.76 ms. Allocated memory is still 172.0 MB. Free memory was 47.1 MB in the beginning and 44.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:17,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 100.7 MB. Free memory was 74.1 MB in the beginning and 74.0 MB in the end (delta: 30.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 599.63 ms. Allocated memory is still 100.7 MB. Free memory was 67.0 MB in the beginning and 67.9 MB in the end (delta: -832.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.36 ms. Allocated memory is still 100.7 MB. Free memory was 67.9 MB in the beginning and 64.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.36 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 61.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1273.50 ms. Allocated memory is still 100.7 MB. Free memory was 61.6 MB in the beginning and 43.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 122438.69 ms. Allocated memory was 100.7 MB in the beginning and 172.0 MB in the end (delta: 71.3 MB). Free memory was 43.0 MB in the beginning and 47.1 MB in the end (delta: -4.0 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. * Witness Printer took 64.76 ms. Allocated memory is still 172.0 MB. Free memory was 47.1 MB in the beginning and 44.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 142 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 122.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 121.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 142 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 298 SDtfs, 557 SDslu, 59 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 778]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1368} State at position 1 is {NULL=0, NULL=0, NULL=1368, NULL=1385, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7af2498c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17b05be2=0, NULL=0, NULL=1389, NULL=1371, methaneLevelCritical=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=1393, NULL=0, NULL=1384, NULL=1383, cleanupTimeShifts=4, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=1370, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12e2ed2a=0, NULL=1375, \result=1, head=0, pumpRunning=0, tmp=1, NULL=0, tmp=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, NULL=0, NULL=1372, NULL=0, tmp=1, NULL=0, tmp___0=0, NULL=1392, NULL=1394, NULL=1382, head=0, NULL=0, NULL=0, tmp=0, NULL=1380, NULL=0, NULL=0, NULL=1369, NULL=0, retValue_acc=0, NULL=1373, NULL=1381, NULL=1379, tmp___0=0, NULL=0, tmp___0=0, NULL=1395, NULL=1391, NULL=1377, NULL=1396, tmp=0, NULL=0, NULL=0, NULL=0, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ca511ac=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@235f80c6=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=1378, \result=0, NULL=1388, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f295e31=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c9670f2=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b9c516b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c1af940=0, NULL=1390, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59d185d4=0, retValue_acc=1, NULL=1374, NULL=1387, tmp___2=66, retValue_acc=1, splverifierCounter=0, NULL=0, \result=0, NULL=1376, NULL=1386} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L489] int retValue_acc ; [L490] int tmp ; [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L769] int splverifierCounter ; [L770] int tmp ; [L771] int tmp___0 ; [L772] int tmp___1 ; [L773] int tmp___2 ; [L776] splverifierCounter = 0 Loop: [L778] COND TRUE 1 [L780] COND TRUE splverifierCounter < 4 [L786] tmp = __VERIFIER_nondet_int() [L788] COND FALSE !(\read(tmp)) [L796] tmp___0 = __VERIFIER_nondet_int() [L798] COND FALSE !(\read(tmp___0)) [L806] tmp___2 = __VERIFIER_nondet_int() [L808] COND TRUE \read(tmp___2) [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L652] int tmp ; [L655] COND FALSE !(\read(pumpRunning)) [L626] int tmp ; [L629] COND TRUE ! pumpRunning [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L914] int retValue_acc ; [L917] COND TRUE waterLevel < 2 [L918] retValue_acc = 1 [L919] return (retValue_acc); [L755] tmp = isHighWaterSensorDry() [L757] COND TRUE \read(tmp) [L758] tmp___0 = 0 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L631] tmp = isHighWaterLevel() [L633] COND FALSE !(\read(tmp)) [L516] int tmp ; [L517] int tmp___0 ; [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L521] tmp = isMethaneLevelCritical() [L523] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...