./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_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_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/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 886805be526b2c7064fb4933bd9f3d8faf6b51bd ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:31:54,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:31:54,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:31:54,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:31:54,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:31:54,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:31:54,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:31:54,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:31:54,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:31:54,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:31:54,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:31:54,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:31:54,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:31:54,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:31:54,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:31:54,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:31:54,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:31:54,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:31:54,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:31:54,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:31:54,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:31:54,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:31:54,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:31:54,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:31:54,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:31:54,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:31:54,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:31:54,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:31:54,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:31:54,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:31:54,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:31:54,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:31:54,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:31:54,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:31:54,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:31:54,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:31:54,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:31:54,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:31:54,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:31:54,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:31:54,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:31:54,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:31:54,247 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:31:54,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:31:54,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:31:54,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:31:54,251 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:31:54,251 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:31:54,251 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:31:54,251 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:31:54,252 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:31:54,252 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:31:54,253 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:31:54,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:31:54,254 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:31:54,254 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:31:54,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:31:54,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:31:54,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:31:54,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:31:54,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:31:54,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:31:54,256 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:31:54,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:31:54,256 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:31:54,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:31:54,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:31:54,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:31:54,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:31:54,258 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:31:54,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:31:54,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:31:54,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:31:54,261 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:31:54,262 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:31:54,262 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_5ce843fb-5216-492b-972b-0e8ab131e5d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 886805be526b2c7064fb4933bd9f3d8faf6b51bd [2020-11-29 23:31:54,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:31:54,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:31:54,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:31:54,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:31:54,612 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:31:54,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2020-11-29 23:31:54,720 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/data/3c7efbd95/5cca4969830f429bb98ca02f86550a3e/FLAG7a7f23e84 [2020-11-29 23:31:55,276 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:31:55,277 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/sv-benchmarks/c/product-lines/minepump_spec5_product44.cil.c [2020-11-29 23:31:55,296 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/data/3c7efbd95/5cca4969830f429bb98ca02f86550a3e/FLAG7a7f23e84 [2020-11-29 23:31:55,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/data/3c7efbd95/5cca4969830f429bb98ca02f86550a3e [2020-11-29 23:31:55,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:31:55,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:31:55,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:31:55,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:31:55,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:31:55,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:31:55" (1/1) ... [2020-11-29 23:31:55,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58eedcc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:55, skipping insertion in model container [2020-11-29 23:31:55,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:31:55" (1/1) ... [2020-11-29 23:31:55,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:31:55,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:31:56,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:31:56,075 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:31:56,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:31:56,261 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:31:56,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56 WrapperNode [2020-11-29 23:31:56,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:31:56,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:31:56,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:31:56,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:31:56,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... [2020-11-29 23:31:56,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... [2020-11-29 23:31:56,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:31:56,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:31:56,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:31:56,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:31:56,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... [2020-11-29 23:31:56,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... [2020-11-29 23:31:56,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... [2020-11-29 23:31:56,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... [2020-11-29 23:31:56,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... [2020-11-29 23:31:56,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... [2020-11-29 23:31:56,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... [2020-11-29 23:31:56,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:31:56,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:31:56,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:31:56,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:31:56,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/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 23:31:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:31:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:31:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:31:56,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:31:57,482 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:31:57,482 INFO L298 CfgBuilder]: Removed 140 assume(true) statements. [2020-11-29 23:31:57,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:31:57 BoogieIcfgContainer [2020-11-29 23:31:57,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:31:57,486 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:31:57,486 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:31:57,490 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:31:57,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:31:57,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:31:55" (1/3) ... [2020-11-29 23:31:57,493 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d9d091c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:31:57, skipping insertion in model container [2020-11-29 23:31:57,494 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:31:57,495 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:31:56" (2/3) ... [2020-11-29 23:31:57,495 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d9d091c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:31:57, skipping insertion in model container [2020-11-29 23:31:57,495 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:31:57,496 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:31:57" (3/3) ... [2020-11-29 23:31:57,500 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product44.cil.c [2020-11-29 23:31:57,554 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:31:57,554 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:31:57,554 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:31:57,555 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:31:57,555 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:31:57,555 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:31:57,555 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:31:57,555 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:31:57,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states. [2020-11-29 23:31:57,598 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-11-29 23:31:57,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:31:57,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:31:57,608 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:57,609 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:57,609 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:31:57,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states. [2020-11-29 23:31:57,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-11-29 23:31:57,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:31:57,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:31:57,619 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:57,619 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:57,625 INFO L794 eck$LassoCheckResult]: Stem: 73#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 4#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 72#L809true 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; 89#L817true main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 52#L906true assume 0 != main_~tmp~7; 59#L881true ~switchedOnBeforeTS~0 := 0; 97#L935true havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 25#L956-1true [2020-11-29 23:31:57,626 INFO L796 eck$LassoCheckResult]: Loop: 25#L956-1true assume !false; 93#L726true assume test_~splverifierCounter~0 < 4; 46#L727true test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 70#L735true assume !(0 != test_~tmp~6); 55#L735-1true test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 95#L745true assume !(0 != test_~tmp___0~1); 96#L745-1true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 20#L755true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 39#L763-1true havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 32#L631true __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 24#L945true assume !(0 != ~pumpRunning~0); 90#L528true assume !(0 != ~systemActive~0); 15#L535true havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 47#L124true __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 23#L956true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 25#L956-1true [2020-11-29 23:31:57,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:57,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 23:31:57,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:57,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257179909] [2020-11-29 23:31:57,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:57,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:58,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:58,254 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:31:58,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:58,260 INFO L82 PathProgramCache]: Analyzing trace with hash 675626232, now seen corresponding path program 1 times [2020-11-29 23:31:58,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:58,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792832564] [2020-11-29 23:31:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:31:58,355 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 23:31:58,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792832564] [2020-11-29 23:31:58,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:31:58,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:31:58,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554685747] [2020-11-29 23:31:58,362 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:31:58,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:31:58,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:31:58,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:31:58,382 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-11-29 23:31:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:31:58,501 INFO L93 Difference]: Finished difference Result 183 states and 257 transitions. [2020-11-29 23:31:58,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:31:58,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 257 transitions. [2020-11-29 23:31:58,521 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 118 [2020-11-29 23:31:58,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 169 states and 242 transitions. [2020-11-29 23:31:58,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2020-11-29 23:31:58,548 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2020-11-29 23:31:58,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 242 transitions. [2020-11-29 23:31:58,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:31:58,551 INFO L691 BuchiCegarLoop]: Abstraction has 169 states and 242 transitions. [2020-11-29 23:31:58,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 242 transitions. [2020-11-29 23:31:58,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2020-11-29 23:31:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-11-29 23:31:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 239 transitions. [2020-11-29 23:31:58,619 INFO L714 BuchiCegarLoop]: Abstraction has 167 states and 239 transitions. [2020-11-29 23:31:58,620 INFO L594 BuchiCegarLoop]: Abstraction has 167 states and 239 transitions. [2020-11-29 23:31:58,620 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:31:58,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 239 transitions. [2020-11-29 23:31:58,631 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 116 [2020-11-29 23:31:58,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:31:58,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:31:58,635 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:58,636 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:58,636 INFO L794 eck$LassoCheckResult]: Stem: 353#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 320#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 321#L809 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; 350#L817 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 312#L906 assume 0 != main_~tmp~7; 313#L881 ~switchedOnBeforeTS~0 := 0; 328#L935 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 307#L956-1 [2020-11-29 23:31:58,637 INFO L796 eck$LassoCheckResult]: Loop: 307#L956-1 assume !false; 380#L726 assume test_~splverifierCounter~0 < 4; 302#L727 test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 303#L735 assume !(0 != test_~tmp~6); 322#L735-1 test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 323#L745 assume !(0 != test_~tmp___0~1); 385#L745-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 373#L755 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 375#L763-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 386#L631 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 379#L945 assume !(0 != ~pumpRunning~0); 357#L528 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 361#L560 assume !(0 == ~pumpRunning~0); 348#L535 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 304#L124 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 305#L956 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 307#L956-1 [2020-11-29 23:31:58,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:58,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 23:31:58,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:58,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112873008] [2020-11-29 23:31:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:58,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:58,823 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:58,864 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:31:58,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:58,865 INFO L82 PathProgramCache]: Analyzing trace with hash -572192763, now seen corresponding path program 1 times [2020-11-29 23:31:58,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:58,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929150248] [2020-11-29 23:31:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:31:58,891 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 23:31:58,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929150248] [2020-11-29 23:31:58,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:31:58,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:31:58,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467966162] [2020-11-29 23:31:58,892 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:31:58,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:31:58,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:31:58,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:31:58,894 INFO L87 Difference]: Start difference. First operand 167 states and 239 transitions. cyclomatic complexity: 75 Second operand 3 states. [2020-11-29 23:31:59,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:31:59,052 INFO L93 Difference]: Finished difference Result 266 states and 367 transitions. [2020-11-29 23:31:59,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:31:59,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 266 states and 367 transitions. [2020-11-29 23:31:59,057 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2020-11-29 23:31:59,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 266 states to 266 states and 367 transitions. [2020-11-29 23:31:59,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 266 [2020-11-29 23:31:59,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 266 [2020-11-29 23:31:59,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 266 states and 367 transitions. [2020-11-29 23:31:59,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:31:59,067 INFO L691 BuchiCegarLoop]: Abstraction has 266 states and 367 transitions. [2020-11-29 23:31:59,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states and 367 transitions. [2020-11-29 23:31:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-29 23:31:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 23:31:59,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 367 transitions. [2020-11-29 23:31:59,090 INFO L714 BuchiCegarLoop]: Abstraction has 266 states and 367 transitions. [2020-11-29 23:31:59,090 INFO L594 BuchiCegarLoop]: Abstraction has 266 states and 367 transitions. [2020-11-29 23:31:59,090 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:31:59,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 266 states and 367 transitions. [2020-11-29 23:31:59,095 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2020-11-29 23:31:59,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:31:59,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:31:59,098 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:59,098 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:59,099 INFO L794 eck$LassoCheckResult]: Stem: 791#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 759#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 760#L809 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; 787#L817 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 751#L906 assume 0 != main_~tmp~7; 752#L881 ~switchedOnBeforeTS~0 := 0; 767#L935 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 822#L956-1 [2020-11-29 23:31:59,099 INFO L796 eck$LassoCheckResult]: Loop: 822#L956-1 assume !false; 823#L726 assume test_~splverifierCounter~0 < 4; 902#L727 test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 944#L735 assume !(0 != test_~tmp~6); 942#L735-1 test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 940#L745 assume !(0 != test_~tmp___0~1); 937#L745-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 935#L755 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 816#L763-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 932#L631 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 820#L945 assume !(0 != ~pumpRunning~0); 821#L528 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 800#L560 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 801#L132 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 802#L137 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 763#L680 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~0 := 0; 764#L680-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 768#L686 processEnvironment_#t~ret52 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret52;havoc processEnvironment_#t~ret52; 909#L564 assume !(0 != processEnvironment_~tmp~3); 908#L535 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 906#L124 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 905#L956 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 822#L956-1 [2020-11-29 23:31:59,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:59,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 23:31:59,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:59,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106026375] [2020-11-29 23:31:59,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:59,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:59,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:59,281 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:31:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:59,283 INFO L82 PathProgramCache]: Analyzing trace with hash -535080687, now seen corresponding path program 1 times [2020-11-29 23:31:59,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:59,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434656827] [2020-11-29 23:31:59,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:31:59,326 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 23:31:59,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434656827] [2020-11-29 23:31:59,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:31:59,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:31:59,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757686800] [2020-11-29 23:31:59,328 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:31:59,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:31:59,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:31:59,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:31:59,329 INFO L87 Difference]: Start difference. First operand 266 states and 367 transitions. cyclomatic complexity: 104 Second operand 5 states. [2020-11-29 23:31:59,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:31:59,566 INFO L93 Difference]: Finished difference Result 702 states and 949 transitions. [2020-11-29 23:31:59,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:31:59,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 702 states and 949 transitions. [2020-11-29 23:31:59,577 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 479 [2020-11-29 23:31:59,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 702 states to 702 states and 949 transitions. [2020-11-29 23:31:59,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 702 [2020-11-29 23:31:59,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 702 [2020-11-29 23:31:59,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 702 states and 949 transitions. [2020-11-29 23:31:59,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:31:59,612 INFO L691 BuchiCegarLoop]: Abstraction has 702 states and 949 transitions. [2020-11-29 23:31:59,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states and 949 transitions. [2020-11-29 23:31:59,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 525. [2020-11-29 23:31:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-11-29 23:31:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 705 transitions. [2020-11-29 23:31:59,656 INFO L714 BuchiCegarLoop]: Abstraction has 525 states and 705 transitions. [2020-11-29 23:31:59,656 INFO L594 BuchiCegarLoop]: Abstraction has 525 states and 705 transitions. [2020-11-29 23:31:59,656 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 23:31:59,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 525 states and 705 transitions. [2020-11-29 23:31:59,661 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 382 [2020-11-29 23:31:59,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:31:59,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:31:59,664 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:59,664 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:31:59,666 INFO L794 eck$LassoCheckResult]: Stem: 1778#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 1743#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 1744#L809 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; 1772#L817 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 1735#L906 assume 0 != main_~tmp~7; 1736#L881 ~switchedOnBeforeTS~0 := 0; 1751#L935 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1730#L956-1 [2020-11-29 23:31:59,666 INFO L796 eck$LassoCheckResult]: Loop: 1730#L956-1 assume !false; 1813#L726 assume test_~splverifierCounter~0 < 4; 1825#L727 test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 2018#L735 assume !(0 != test_~tmp~6); 1745#L735-1 test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 1746#L745 assume !(0 != test_~tmp___0~1); 1822#L745-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 1802#L755 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1804#L763-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1823#L631 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 1811#L945 assume !(0 != ~pumpRunning~0); 1812#L528 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1814#L560 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1921#L132 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1955#L137 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 1976#L680 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~0 := 0; 1752#L680-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1753#L686 processEnvironment_#t~ret52 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret52;havoc processEnvironment_#t~ret52; 1770#L564 assume !(0 != processEnvironment_~tmp~3); 1771#L535 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1725#L124 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1726#L956 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1809#L631-1 __utac_acc__Specification5_spec__3_#t~ret80 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 1824#L960 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1730#L956-1 [2020-11-29 23:31:59,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:59,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 23:31:59,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:59,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232971051] [2020-11-29 23:31:59,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:59,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:59,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:59,787 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:31:59,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:59,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1183520076, now seen corresponding path program 1 times [2020-11-29 23:31:59,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:59,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442882148] [2020-11-29 23:31:59,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:59,801 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:59,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:59,813 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:31:59,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:31:59,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1042926738, now seen corresponding path program 1 times [2020-11-29 23:31:59,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:31:59,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978149741] [2020-11-29 23:31:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:31:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:59,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:31:59,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:31:59,939 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:32:00,198 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-29 23:32:00,325 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-29 23:33:26,104 WARN L193 SmtUtils]: Spent 1.43 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 23:34:25,345 WARN L193 SmtUtils]: Spent 59.23 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 23:34:25,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:34:25 BoogieIcfgContainer [2020-11-29 23:34:25,516 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:34:25,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:34:25,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:34:25,517 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:34:25,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:31:57" (3/4) ... [2020-11-29 23:34:25,520 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:34:25,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5ce843fb-5216-492b-972b-0e8ab131e5d6/bin/uautomizer/witness.graphml [2020-11-29 23:34:25,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:34:25,594 INFO L168 Benchmark]: Toolchain (without parser) took 150003.68 ms. Allocated memory was 104.9 MB in the beginning and 153.1 MB in the end (delta: 48.2 MB). Free memory was 77.7 MB in the beginning and 115.7 MB in the end (delta: -38.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:34:25,595 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory is still 63.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:34:25,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.32 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 70.0 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:34:25,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.09 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 66.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:34:25,597 INFO L168 Benchmark]: Boogie Preprocessor took 51.62 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 64.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:34:25,598 INFO L168 Benchmark]: RCFGBuilder took 1083.38 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 64.2 MB in the beginning and 64.4 MB in the end (delta: -252.2 kB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:34:25,599 INFO L168 Benchmark]: BuchiAutomizer took 148029.78 ms. Allocated memory was 125.8 MB in the beginning and 153.1 MB in the end (delta: 27.3 MB). Free memory was 63.9 MB in the beginning and 118.9 MB in the end (delta: -54.9 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:34:25,600 INFO L168 Benchmark]: Witness Printer took 76.57 ms. Allocated memory is still 153.1 MB. Free memory was 118.9 MB in the beginning and 115.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:34:25,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory is still 63.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 670.32 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 70.0 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.09 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 66.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.62 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 64.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1083.38 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 64.2 MB in the beginning and 64.4 MB in the end (delta: -252.2 kB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 148029.78 ms. Allocated memory was 125.8 MB in the beginning and 153.1 MB in the end (delta: 27.3 MB). Free memory was 63.9 MB in the beginning and 118.9 MB in the end (delta: -54.9 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.1 GB. * Witness Printer took 76.57 ms. Allocated memory is still 153.1 MB. Free memory was 118.9 MB in the beginning and 115.7 MB in the end (delta: 3.1 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 525 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 147.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 147.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 179 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 525 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 425 SDtfs, 633 SDslu, 573 SDs, 0 SdLazy, 106 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 725]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=27644} State at position 1 is {NULL=0, NULL=0, NULL=27645, NULL=0, NULL=27644, NULL=27658, NULL=0, NULL=0, NULL=27650, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aee011=0, retValue_acc=1, NULL=0, tmp=0, retValue_acc=0, NULL=27672, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a356808=0, NULL=27664, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d6822a9=0, NULL=27659, cleanupTimeShifts=4, NULL=27662, NULL=27652, waterLevel=1, NULL=0, NULL=27653, NULL=0, NULL=0, NULL=27655, NULL=27671, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=0, retValue_acc=1, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3368a054=0, \result=1, tmp=1, tmp___0=0, tmp=0, head=0, NULL=0, NULL=0, NULL=27651, NULL=0, NULL=0, NULL=0, NULL=0, NULL=27669, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23ddab84=0, NULL=27656, NULL=27646, NULL=27663, tmp=1, tmp___0=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38d6ffb8=0, switchedOnBeforeTS=0, \result=0, NULL=0, systemActive=1, \result=1, NULL=0, NULL=27647, \result=0, NULL=0, NULL=27648, NULL=0, NULL=0, retValue_acc=0, NULL=27667, tmp___0=0, NULL=27660, \result=0, NULL=27649, NULL=0, NULL=27670, NULL=27657, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42acb5ad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f0a033c=78, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@247898=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34734b13=0, NULL=27668, tmp___2=78, splverifierCounter=0, NULL=0, NULL=27666, NULL=27661, NULL=27665, NULL=27654, NULL=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L312] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L516] int pumpRunning = 0; [L517] int systemActive = 1; [L822] int cleanupTimeShifts = 4; [L929] int switchedOnBeforeTS ; [L897] int retValue_acc ; [L898] int tmp ; [L813] int retValue_acc ; [L816] retValue_acc = 1 [L817] return (retValue_acc); [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) [L934] switchedOnBeforeTS = 0 [L716] int splverifierCounter ; [L717] int tmp ; [L718] int tmp___0 ; [L719] int tmp___1 ; [L720] int tmp___2 ; [L723] splverifierCounter = 0 Loop: [L725] COND TRUE 1 [L727] COND TRUE splverifierCounter < 4 [L733] tmp = __VERIFIER_nondet_int() [L735] COND FALSE !(\read(tmp)) [L743] tmp___0 = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp___0)) [L753] tmp___2 = __VERIFIER_nondet_int() [L755] COND TRUE \read(tmp___2) [L709] systemActive = 1 [L627] int retValue_acc ; [L630] retValue_acc = pumpRunning [L631] return (retValue_acc); [L943] switchedOnBeforeTS = isPumpRunning() [L528] COND FALSE !(\read(pumpRunning)) [L535] COND TRUE \read(systemActive) [L557] int tmp ; [L560] COND TRUE ! pumpRunning [L672] int retValue_acc ; [L673] int tmp ; [L674] int tmp___0 ; [L129] int retValue_acc ; [L132] COND TRUE waterLevel < 2 [L133] retValue_acc = 1 [L134] return (retValue_acc); [L678] tmp = isHighWaterSensorDry() [L680] COND TRUE \read(tmp) [L681] tmp___0 = 0 [L685] retValue_acc = tmp___0 [L686] return (retValue_acc); [L562] tmp = isHighWaterLevel() [L564] COND FALSE !(\read(tmp)) [L949] int tmp ; [L950] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L954] tmp = getWaterLevel() [L956] COND TRUE tmp != 2 [L627] int retValue_acc ; [L630] retValue_acc = pumpRunning [L631] return (retValue_acc); [L958] tmp___0 = isPumpRunning() [L960] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...