./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:20:29,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:29,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:29,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:29,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:29,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:29,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:29,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:29,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:29,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:29,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:29,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:29,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:29,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:29,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:29,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:29,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:29,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:29,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:30,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:30,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:30,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:30,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:30,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:30,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:30,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:30,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:30,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:30,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:30,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:30,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:30,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:30,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:30,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:30,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:30,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:30,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:30,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:30,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:30,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:30,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:30,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:20:30,100 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:30,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:30,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:30,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:30,104 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:30,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:30,104 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:20:30,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:30,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:20:30,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:30,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:20:30,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:20:30,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:20:30,108 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:20:30,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:20:30,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:30,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:20:30,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:30,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:30,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:20:30,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:20:30,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:30,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:30,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:20:30,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:20:30,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:30,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:20:30,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:20:30,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:30,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 [2020-11-28 03:20:30,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:30,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:30,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:30,536 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:30,538 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:30,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2020-11-28 03:20:30,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/data/fa61e7a2c/4fe05656f6ba446fb7d70edfb08301fc/FLAGa2e62c9ab [2020-11-28 03:20:31,232 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:31,233 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2020-11-28 03:20:31,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/data/fa61e7a2c/4fe05656f6ba446fb7d70edfb08301fc/FLAGa2e62c9ab [2020-11-28 03:20:31,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/data/fa61e7a2c/4fe05656f6ba446fb7d70edfb08301fc [2020-11-28 03:20:31,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:31,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:20:31,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:31,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:31,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:31,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f726f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31, skipping insertion in model container [2020-11-28 03:20:31,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:31,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:32,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:32,129 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:32,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:32,277 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:32,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32 WrapperNode [2020-11-28 03:20:32,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:32,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:32,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:20:32,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:20:32,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2020-11-28 03:20:32,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2020-11-28 03:20:32,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:32,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:32,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:32,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:32,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2020-11-28 03:20:32,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2020-11-28 03:20:32,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2020-11-28 03:20:32,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2020-11-28 03:20:32,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2020-11-28 03:20:32,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2020-11-28 03:20:32,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... [2020-11-28 03:20:32,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:32,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:32,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:32,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:32,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:20:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:20:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:33,817 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:33,817 INFO L298 CfgBuilder]: Removed 198 assume(true) statements. [2020-11-28 03:20:33,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:33 BoogieIcfgContainer [2020-11-28 03:20:33,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:33,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:20:33,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:20:33,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:20:33,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:31" (1/3) ... [2020-11-28 03:20:33,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5ecade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:33, skipping insertion in model container [2020-11-28 03:20:33,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:32" (2/3) ... [2020-11-28 03:20:33,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5ecade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:33, skipping insertion in model container [2020-11-28 03:20:33,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:33" (3/3) ... [2020-11-28 03:20:33,830 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2020-11-28 03:20:33,843 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:20:33,854 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:20:33,868 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:20:33,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:20:33,900 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:20:33,900 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:20:33,900 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:33,900 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:33,901 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:20:33,901 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:33,901 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:20:33,928 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-11-28 03:20:33,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:20:33,935 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:33,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:33,936 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:33,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:33,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1794396740, now seen corresponding path program 1 times [2020-11-28 03:20:33,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:33,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462942257] [2020-11-28 03:20:33,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:34,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462942257] [2020-11-28 03:20:34,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:34,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:34,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895477918] [2020-11-28 03:20:34,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:20:34,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:34,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:20:34,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:20:34,309 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2020-11-28 03:20:34,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:34,351 INFO L93 Difference]: Finished difference Result 267 states and 398 transitions. [2020-11-28 03:20:34,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:20:34,353 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:20:34,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:34,367 INFO L225 Difference]: With dead ends: 267 [2020-11-28 03:20:34,368 INFO L226 Difference]: Without dead ends: 131 [2020-11-28 03:20:34,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:20:34,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-28 03:20:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-11-28 03:20:34,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-11-28 03:20:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2020-11-28 03:20:34,430 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2020-11-28 03:20:34,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:34,431 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2020-11-28 03:20:34,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:20:34,431 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2020-11-28 03:20:34,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:20:34,433 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:34,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:34,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:20:34,434 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:34,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:34,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1720251087, now seen corresponding path program 1 times [2020-11-28 03:20:34,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:34,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066491556] [2020-11-28 03:20:34,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:34,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066491556] [2020-11-28 03:20:34,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:34,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:34,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154799283] [2020-11-28 03:20:34,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:34,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:34,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:34,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:34,569 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 3 states. [2020-11-28 03:20:34,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:34,601 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2020-11-28 03:20:34,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:34,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:20:34,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:34,606 INFO L225 Difference]: With dead ends: 131 [2020-11-28 03:20:34,607 INFO L226 Difference]: Without dead ends: 53 [2020-11-28 03:20:34,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:34,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-28 03:20:34,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-28 03:20:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-28 03:20:34,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-11-28 03:20:34,622 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-11-28 03:20:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:34,623 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-11-28 03:20:34,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:34,624 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-11-28 03:20:34,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:20:34,626 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:34,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:34,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:20:34,628 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:34,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:34,629 INFO L82 PathProgramCache]: Analyzing trace with hash 105563969, now seen corresponding path program 1 times [2020-11-28 03:20:34,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:34,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558222269] [2020-11-28 03:20:34,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:34,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558222269] [2020-11-28 03:20:34,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:34,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:34,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358696666] [2020-11-28 03:20:34,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:34,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:34,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:34,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:34,819 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2020-11-28 03:20:34,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:34,840 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2020-11-28 03:20:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:34,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:20:34,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:34,843 INFO L225 Difference]: With dead ends: 100 [2020-11-28 03:20:34,845 INFO L226 Difference]: Without dead ends: 53 [2020-11-28 03:20:34,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:34,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-28 03:20:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-28 03:20:34,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-28 03:20:34,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2020-11-28 03:20:34,865 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2020-11-28 03:20:34,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:34,866 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2020-11-28 03:20:34,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:34,867 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2020-11-28 03:20:34,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:20:34,869 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:34,869 INFO L422 BasicCegarLoop]: trace 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] [2020-11-28 03:20:34,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:20:34,870 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:34,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:34,873 INFO L82 PathProgramCache]: Analyzing trace with hash -72226312, now seen corresponding path program 1 times [2020-11-28 03:20:34,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:34,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891167241] [2020-11-28 03:20:34,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:34,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:34,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891167241] [2020-11-28 03:20:34,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:34,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:34,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336821379] [2020-11-28 03:20:34,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:34,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:34,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:34,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:34,980 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand 3 states. [2020-11-28 03:20:35,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:35,083 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2020-11-28 03:20:35,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:35,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:20:35,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:35,085 INFO L225 Difference]: With dead ends: 121 [2020-11-28 03:20:35,086 INFO L226 Difference]: Without dead ends: 74 [2020-11-28 03:20:35,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-28 03:20:35,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2020-11-28 03:20:35,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:20:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2020-11-28 03:20:35,100 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2020-11-28 03:20:35,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:35,101 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2020-11-28 03:20:35,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:35,101 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2020-11-28 03:20:35,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:20:35,102 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:35,103 INFO L422 BasicCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:35,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:20:35,103 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:35,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:35,104 INFO L82 PathProgramCache]: Analyzing trace with hash 615192364, now seen corresponding path program 1 times [2020-11-28 03:20:35,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:35,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940150093] [2020-11-28 03:20:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:35,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:35,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940150093] [2020-11-28 03:20:35,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:35,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:20:35,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940550166] [2020-11-28 03:20:35,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:35,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:35,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:35,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:35,236 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 5 states. [2020-11-28 03:20:35,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:35,399 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2020-11-28 03:20:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:20:35,400 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 03:20:35,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:35,405 INFO L225 Difference]: With dead ends: 253 [2020-11-28 03:20:35,405 INFO L226 Difference]: Without dead ends: 187 [2020-11-28 03:20:35,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:20:35,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-11-28 03:20:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2020-11-28 03:20:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-28 03:20:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2020-11-28 03:20:35,425 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2020-11-28 03:20:35,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:35,425 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2020-11-28 03:20:35,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:35,426 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2020-11-28 03:20:35,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:20:35,427 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:35,427 INFO L422 BasicCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:35,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:20:35,428 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:35,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:35,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1392623830, now seen corresponding path program 1 times [2020-11-28 03:20:35,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:35,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719840267] [2020-11-28 03:20:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:35,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:35,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719840267] [2020-11-28 03:20:35,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:35,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:35,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149722240] [2020-11-28 03:20:35,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:35,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:35,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:35,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:35,519 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 4 states. [2020-11-28 03:20:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:35,764 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2020-11-28 03:20:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:35,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-28 03:20:35,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:35,766 INFO L225 Difference]: With dead ends: 238 [2020-11-28 03:20:35,767 INFO L226 Difference]: Without dead ends: 172 [2020-11-28 03:20:35,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:35,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-11-28 03:20:35,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2020-11-28 03:20:35,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-28 03:20:35,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2020-11-28 03:20:35,797 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2020-11-28 03:20:35,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:35,798 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2020-11-28 03:20:35,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:35,798 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2020-11-28 03:20:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:20:35,800 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:35,800 INFO L422 BasicCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:35,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:20:35,801 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:35,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:35,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1134458392, now seen corresponding path program 1 times [2020-11-28 03:20:35,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:35,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059219113] [2020-11-28 03:20:35,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:35,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059219113] [2020-11-28 03:20:35,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:35,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:20:35,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143042194] [2020-11-28 03:20:35,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:35,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:35,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:35,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:35,887 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand 4 states. [2020-11-28 03:20:35,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:35,981 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2020-11-28 03:20:35,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:20:35,981 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-28 03:20:35,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:35,984 INFO L225 Difference]: With dead ends: 473 [2020-11-28 03:20:35,985 INFO L226 Difference]: Without dead ends: 352 [2020-11-28 03:20:35,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-11-28 03:20:36,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2020-11-28 03:20:36,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-28 03:20:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2020-11-28 03:20:36,015 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2020-11-28 03:20:36,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:36,016 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2020-11-28 03:20:36,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:36,016 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2020-11-28 03:20:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:20:36,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:36,018 INFO L422 BasicCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:36,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:20:36,018 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:36,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:36,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1527485402, now seen corresponding path program 1 times [2020-11-28 03:20:36,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:36,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442670341] [2020-11-28 03:20:36,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:36,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:36,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442670341] [2020-11-28 03:20:36,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:36,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:20:36,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556799802] [2020-11-28 03:20:36,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:20:36,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:36,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:20:36,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:20:36,157 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand 6 states. [2020-11-28 03:20:36,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:36,330 INFO L93 Difference]: Finished difference Result 592 states and 826 transitions. [2020-11-28 03:20:36,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:20:36,331 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-11-28 03:20:36,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:36,335 INFO L225 Difference]: With dead ends: 592 [2020-11-28 03:20:36,335 INFO L226 Difference]: Without dead ends: 429 [2020-11-28 03:20:36,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:20:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-11-28 03:20:36,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 178. [2020-11-28 03:20:36,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-28 03:20:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2020-11-28 03:20:36,365 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2020-11-28 03:20:36,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:36,366 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2020-11-28 03:20:36,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:20:36,366 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2020-11-28 03:20:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:20:36,373 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:36,373 INFO L422 BasicCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:36,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:20:36,374 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:36,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:36,375 INFO L82 PathProgramCache]: Analyzing trace with hash -987336539, now seen corresponding path program 1 times [2020-11-28 03:20:36,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:36,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361746237] [2020-11-28 03:20:36,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:36,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:36,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361746237] [2020-11-28 03:20:36,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:36,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:36,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472852047] [2020-11-28 03:20:36,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:20:36,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:36,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:20:36,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:20:36,478 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand 6 states. [2020-11-28 03:20:36,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:36,707 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2020-11-28 03:20:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:20:36,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-11-28 03:20:36,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:36,714 INFO L225 Difference]: With dead ends: 912 [2020-11-28 03:20:36,714 INFO L226 Difference]: Without dead ends: 740 [2020-11-28 03:20:36,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:20:36,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-11-28 03:20:36,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2020-11-28 03:20:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-28 03:20:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2020-11-28 03:20:36,759 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2020-11-28 03:20:36,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:36,762 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2020-11-28 03:20:36,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:20:36,762 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2020-11-28 03:20:36,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:20:36,769 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:36,770 INFO L422 BasicCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:36,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:20:36,772 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:36,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:36,773 INFO L82 PathProgramCache]: Analyzing trace with hash 787670823, now seen corresponding path program 1 times [2020-11-28 03:20:36,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:36,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107339062] [2020-11-28 03:20:36,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:36,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:36,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107339062] [2020-11-28 03:20:36,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:36,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:36,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795447954] [2020-11-28 03:20:36,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:36,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:36,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:36,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:36,895 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand 5 states. [2020-11-28 03:20:37,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:37,148 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2020-11-28 03:20:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:20:37,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-11-28 03:20:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:37,154 INFO L225 Difference]: With dead ends: 752 [2020-11-28 03:20:37,155 INFO L226 Difference]: Without dead ends: 510 [2020-11-28 03:20:37,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:20:37,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-11-28 03:20:37,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2020-11-28 03:20:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-11-28 03:20:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2020-11-28 03:20:37,200 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2020-11-28 03:20:37,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:37,201 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2020-11-28 03:20:37,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:37,201 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2020-11-28 03:20:37,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:20:37,203 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:37,203 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:37,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:20:37,204 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:37,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:37,204 INFO L82 PathProgramCache]: Analyzing trace with hash -905763614, now seen corresponding path program 1 times [2020-11-28 03:20:37,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:37,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643714988] [2020-11-28 03:20:37,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:20:37,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643714988] [2020-11-28 03:20:37,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:37,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:37,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328434798] [2020-11-28 03:20:37,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:37,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:37,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:37,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:37,296 INFO L87 Difference]: Start difference. First operand 332 states and 433 transitions. Second operand 5 states. [2020-11-28 03:20:37,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:37,417 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2020-11-28 03:20:37,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:20:37,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-11-28 03:20:37,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:37,421 INFO L225 Difference]: With dead ends: 753 [2020-11-28 03:20:37,421 INFO L226 Difference]: Without dead ends: 427 [2020-11-28 03:20:37,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:20:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-11-28 03:20:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2020-11-28 03:20:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-11-28 03:20:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2020-11-28 03:20:37,463 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2020-11-28 03:20:37,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:37,463 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2020-11-28 03:20:37,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2020-11-28 03:20:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:20:37,465 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:37,465 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:37,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:20:37,465 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:37,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:37,466 INFO L82 PathProgramCache]: Analyzing trace with hash -978150172, now seen corresponding path program 1 times [2020-11-28 03:20:37,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:37,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177261266] [2020-11-28 03:20:37,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:37,532 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:20:37,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177261266] [2020-11-28 03:20:37,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:37,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:20:37,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82754350] [2020-11-28 03:20:37,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:37,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:37,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:37,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:37,534 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand 4 states. [2020-11-28 03:20:37,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:37,613 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2020-11-28 03:20:37,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:37,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-11-28 03:20:37,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:37,617 INFO L225 Difference]: With dead ends: 676 [2020-11-28 03:20:37,617 INFO L226 Difference]: Without dead ends: 350 [2020-11-28 03:20:37,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:37,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-11-28 03:20:37,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2020-11-28 03:20:37,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-28 03:20:37,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2020-11-28 03:20:37,650 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2020-11-28 03:20:37,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:37,650 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2020-11-28 03:20:37,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:37,650 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2020-11-28 03:20:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-28 03:20:37,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:37,652 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:37,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:20:37,652 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:37,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:37,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1543448920, now seen corresponding path program 1 times [2020-11-28 03:20:37,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:37,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623947255] [2020-11-28 03:20:37,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:20:37,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623947255] [2020-11-28 03:20:37,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:37,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:37,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413562389] [2020-11-28 03:20:37,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:37,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:37,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:37,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:37,765 INFO L87 Difference]: Start difference. First operand 266 states and 341 transitions. Second operand 5 states. [2020-11-28 03:20:37,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:37,892 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2020-11-28 03:20:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:20:37,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-11-28 03:20:37,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:37,903 INFO L225 Difference]: With dead ends: 878 [2020-11-28 03:20:37,903 INFO L226 Difference]: Without dead ends: 666 [2020-11-28 03:20:37,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:20:37,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-11-28 03:20:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2020-11-28 03:20:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-28 03:20:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2020-11-28 03:20:37,949 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2020-11-28 03:20:37,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:37,951 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2020-11-28 03:20:37,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:37,952 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2020-11-28 03:20:37,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-28 03:20:37,954 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:37,955 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:37,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:20:37,955 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:37,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:37,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1936475930, now seen corresponding path program 1 times [2020-11-28 03:20:37,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:37,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679792445] [2020-11-28 03:20:37,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:38,062 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:20:38,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679792445] [2020-11-28 03:20:38,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:38,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:38,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459758539] [2020-11-28 03:20:38,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:38,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:38,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:38,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:38,064 INFO L87 Difference]: Start difference. First operand 272 states and 347 transitions. Second operand 5 states. [2020-11-28 03:20:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:38,345 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2020-11-28 03:20:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:20:38,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-11-28 03:20:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:38,352 INFO L225 Difference]: With dead ends: 708 [2020-11-28 03:20:38,352 INFO L226 Difference]: Without dead ends: 706 [2020-11-28 03:20:38,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:20:38,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-11-28 03:20:38,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2020-11-28 03:20:38,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-28 03:20:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2020-11-28 03:20:38,403 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2020-11-28 03:20:38,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:38,404 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2020-11-28 03:20:38,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:38,404 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2020-11-28 03:20:38,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-28 03:20:38,405 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:38,405 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:38,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:20:38,406 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:38,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:38,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1296965935, now seen corresponding path program 1 times [2020-11-28 03:20:38,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:38,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406782827] [2020-11-28 03:20:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:38,532 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:38,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406782827] [2020-11-28 03:20:38,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810046311] [2020-11-28 03:20:38,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:20:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:38,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:20:38,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:38,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:20:38,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-11-28 03:20:38,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222465014] [2020-11-28 03:20:38,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:20:38,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:38,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:20:38,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:20:38,820 INFO L87 Difference]: Start difference. First operand 272 states and 345 transitions. Second operand 6 states. [2020-11-28 03:20:39,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:39,196 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2020-11-28 03:20:39,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:20:39,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-11-28 03:20:39,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:39,202 INFO L225 Difference]: With dead ends: 855 [2020-11-28 03:20:39,202 INFO L226 Difference]: Without dead ends: 637 [2020-11-28 03:20:39,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:20:39,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-11-28 03:20:39,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2020-11-28 03:20:39,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-11-28 03:20:39,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2020-11-28 03:20:39,274 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2020-11-28 03:20:39,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:39,274 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2020-11-28 03:20:39,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:20:39,275 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2020-11-28 03:20:39,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-28 03:20:39,276 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:39,276 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:39,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-28 03:20:39,502 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:39,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:39,503 INFO L82 PathProgramCache]: Analyzing trace with hash -309250713, now seen corresponding path program 2 times [2020-11-28 03:20:39,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:39,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282495836] [2020-11-28 03:20:39,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:20:39,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282495836] [2020-11-28 03:20:39,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:39,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:39,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882489118] [2020-11-28 03:20:39,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:39,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:39,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:39,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:39,728 INFO L87 Difference]: Start difference. First operand 386 states and 495 transitions. Second operand 5 states. [2020-11-28 03:20:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:40,320 INFO L93 Difference]: Finished difference Result 1180 states and 1538 transitions. [2020-11-28 03:20:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:20:40,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-11-28 03:20:40,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:40,327 INFO L225 Difference]: With dead ends: 1180 [2020-11-28 03:20:40,327 INFO L226 Difference]: Without dead ends: 846 [2020-11-28 03:20:40,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:20:40,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-11-28 03:20:40,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 532. [2020-11-28 03:20:40,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-11-28 03:20:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2020-11-28 03:20:40,432 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2020-11-28 03:20:40,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:40,433 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2020-11-28 03:20:40,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:40,433 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2020-11-28 03:20:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-28 03:20:40,435 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:40,435 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:40,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:20:40,436 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:40,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:40,436 INFO L82 PathProgramCache]: Analyzing trace with hash -34491099, now seen corresponding path program 1 times [2020-11-28 03:20:40,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:40,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552485851] [2020-11-28 03:20:40,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 03:20:40,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552485851] [2020-11-28 03:20:40,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266332824] [2020-11-28 03:20:40,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:20:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:40,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:20:40,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-28 03:20:40,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:20:40,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-11-28 03:20:40,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757702936] [2020-11-28 03:20:40,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:40,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:40,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:40,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:20:40,808 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand 5 states. [2020-11-28 03:20:40,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:40,943 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2020-11-28 03:20:40,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:20:40,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-11-28 03:20:40,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:40,945 INFO L225 Difference]: With dead ends: 934 [2020-11-28 03:20:40,945 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:20:40,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:20:40,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:20:40,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:20:40,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:20:40,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:20:40,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-11-28 03:20:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:40,948 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:40,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:40,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:20:40,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:20:41,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-11-28 03:20:41,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:20:42,215 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 253 DAG size of output: 204 [2020-11-28 03:20:43,422 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 298 DAG size of output: 224 [2020-11-28 03:20:43,853 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 148 [2020-11-28 03:20:44,593 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 220 [2020-11-28 03:20:45,255 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 219 [2020-11-28 03:20:45,492 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 139 [2020-11-28 03:20:45,837 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 162 [2020-11-28 03:20:45,985 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 120 [2020-11-28 03:20:47,608 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 203 DAG size of output: 32 [2020-11-28 03:20:49,025 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 215 DAG size of output: 20 [2020-11-28 03:20:49,618 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 35 [2020-11-28 03:20:50,958 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 217 DAG size of output: 22 [2020-11-28 03:20:52,253 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 209 DAG size of output: 28 [2020-11-28 03:20:52,405 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 15 [2020-11-28 03:20:52,973 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 30 [2020-11-28 03:20:53,741 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 43 [2020-11-28 03:20:54,136 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 20 [2020-11-28 03:20:54,345 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 21 [2020-11-28 03:20:54,378 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:20:54,379 INFO L270 CegarLoopResult]: At program point L564(lines 560 566) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-11-28 03:20:54,379 INFO L270 CegarLoopResult]: At program point L135(lines 135 141) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 ~waterLevel~0) .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)))) [2020-11-28 03:20:54,379 INFO L270 CegarLoopResult]: At program point L102(lines 55 103) the Hoare annotation is: false [2020-11-28 03:20:54,380 INFO L270 CegarLoopResult]: At program point L135-1(lines 135 141) the Hoare annotation is: false [2020-11-28 03:20:54,380 INFO L270 CegarLoopResult]: At program point L135-2(lines 135 141) the Hoare annotation is: false [2020-11-28 03:20:54,380 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:20:54,380 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:20:54,380 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-28 03:20:54,380 INFO L270 CegarLoopResult]: At program point L500(lines 495 503) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-11-28 03:20:54,381 INFO L274 CegarLoopResult]: For program point L370(lines 370 374) no Hoare annotation was computed. [2020-11-28 03:20:54,381 INFO L274 CegarLoopResult]: For program point L370-3(lines 370 374) no Hoare annotation was computed. [2020-11-28 03:20:54,381 INFO L274 CegarLoopResult]: For program point L370-6(lines 370 374) no Hoare annotation was computed. [2020-11-28 03:20:54,381 INFO L274 CegarLoopResult]: For program point L306(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,381 INFO L274 CegarLoopResult]: For program point L306-2(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,381 INFO L274 CegarLoopResult]: For program point L306-3(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,382 INFO L274 CegarLoopResult]: For program point L306-5(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,382 INFO L274 CegarLoopResult]: For program point L306-6(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,382 INFO L274 CegarLoopResult]: For program point L306-8(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,382 INFO L274 CegarLoopResult]: For program point L306-9(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,382 INFO L274 CegarLoopResult]: For program point L306-11(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,382 INFO L274 CegarLoopResult]: For program point L306-12(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,382 INFO L274 CegarLoopResult]: For program point L306-14(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,382 INFO L274 CegarLoopResult]: For program point L306-15(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,382 INFO L274 CegarLoopResult]: For program point L306-17(lines 306 310) no Hoare annotation was computed. [2020-11-28 03:20:54,383 INFO L270 CegarLoopResult]: At program point L439(lines 434 442) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) (and .cse0 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) .cse1 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-11-28 03:20:54,383 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:20:54,383 INFO L270 CegarLoopResult]: At program point L439-1(lines 434 442) the Hoare annotation is: false [2020-11-28 03:20:54,383 INFO L270 CegarLoopResult]: At program point L439-2(lines 434 442) the Hoare annotation is: false [2020-11-28 03:20:54,383 INFO L274 CegarLoopResult]: For program point L76(lines 76 82) no Hoare annotation was computed. [2020-11-28 03:20:54,384 INFO L270 CegarLoopResult]: At program point L76-1(lines 76 82) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~3 0) .cse0 .cse1 .cse3))) [2020-11-28 03:20:54,384 INFO L270 CegarLoopResult]: At program point L407(lines 402 410) the Hoare annotation is: false [2020-11-28 03:20:54,384 INFO L270 CegarLoopResult]: At program point L407-1(lines 402 410) the Hoare annotation is: (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) [2020-11-28 03:20:54,384 INFO L270 CegarLoopResult]: At program point L407-2(lines 402 410) the Hoare annotation is: false [2020-11-28 03:20:54,384 INFO L270 CegarLoopResult]: At program point L407-3(lines 402 410) the Hoare annotation is: false [2020-11-28 03:20:54,384 INFO L270 CegarLoopResult]: At program point L407-4(lines 402 410) the Hoare annotation is: false [2020-11-28 03:20:54,384 INFO L270 CegarLoopResult]: At program point L407-5(lines 402 410) the Hoare annotation is: false [2020-11-28 03:20:54,385 INFO L274 CegarLoopResult]: For program point L971(line 971) no Hoare annotation was computed. [2020-11-28 03:20:54,385 INFO L274 CegarLoopResult]: For program point L971-1(line 971) no Hoare annotation was computed. [2020-11-28 03:20:54,385 INFO L274 CegarLoopResult]: For program point L971-2(line 971) no Hoare annotation was computed. [2020-11-28 03:20:54,385 INFO L270 CegarLoopResult]: At program point L312(lines 297 315) the Hoare annotation is: false [2020-11-28 03:20:54,385 INFO L270 CegarLoopResult]: At program point L312-1(lines 297 315) the Hoare annotation is: (let ((.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse1 (= 1 ~systemActive~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not .cse0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 (not .cse4)) (and .cse4 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 1) .cse0 .cse2 (<= 1 ~waterLevel~0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)))) [2020-11-28 03:20:54,385 INFO L270 CegarLoopResult]: At program point L312-2(lines 297 315) the Hoare annotation is: false [2020-11-28 03:20:54,385 INFO L270 CegarLoopResult]: At program point L312-3(lines 297 315) the Hoare annotation is: false [2020-11-28 03:20:54,385 INFO L270 CegarLoopResult]: At program point L312-4(lines 297 315) the Hoare annotation is: false [2020-11-28 03:20:54,386 INFO L270 CegarLoopResult]: At program point L312-5(lines 297 315) the Hoare annotation is: false [2020-11-28 03:20:54,386 INFO L274 CegarLoopResult]: For program point L346(lines 346 359) no Hoare annotation was computed. [2020-11-28 03:20:54,386 INFO L270 CegarLoopResult]: At program point L346-1(lines 1 974) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse1 (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (and (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) .cse2 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))))) [2020-11-28 03:20:54,386 INFO L274 CegarLoopResult]: For program point L346-2(lines 346 359) no Hoare annotation was computed. [2020-11-28 03:20:54,386 INFO L270 CegarLoopResult]: At program point L346-3(lines 1 974) the Hoare annotation is: false [2020-11-28 03:20:54,386 INFO L274 CegarLoopResult]: For program point L346-4(lines 346 359) no Hoare annotation was computed. [2020-11-28 03:20:54,386 INFO L270 CegarLoopResult]: At program point L346-5(lines 1 974) the Hoare annotation is: false [2020-11-28 03:20:54,387 INFO L270 CegarLoopResult]: At program point L248(lines 241 251) the Hoare annotation is: false [2020-11-28 03:20:54,387 INFO L270 CegarLoopResult]: At program point L248-1(lines 241 251) the Hoare annotation is: (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) [2020-11-28 03:20:54,387 INFO L270 CegarLoopResult]: At program point L248-2(lines 241 251) the Hoare annotation is: false [2020-11-28 03:20:54,387 INFO L270 CegarLoopResult]: At program point L248-3(lines 241 251) the Hoare annotation is: false [2020-11-28 03:20:54,387 INFO L270 CegarLoopResult]: At program point L248-4(lines 241 251) the Hoare annotation is: false [2020-11-28 03:20:54,387 INFO L270 CegarLoopResult]: At program point L248-5(lines 241 251) the Hoare annotation is: false [2020-11-28 03:20:54,387 INFO L274 CegarLoopResult]: For program point L447(lines 447 453) no Hoare annotation was computed. [2020-11-28 03:20:54,387 INFO L274 CegarLoopResult]: For program point L447-1(lines 447 453) no Hoare annotation was computed. [2020-11-28 03:20:54,388 INFO L274 CegarLoopResult]: For program point L447-2(lines 447 453) no Hoare annotation was computed. [2020-11-28 03:20:54,388 INFO L274 CegarLoopResult]: For program point L447-3(lines 447 453) no Hoare annotation was computed. [2020-11-28 03:20:54,388 INFO L274 CegarLoopResult]: For program point L447-4(lines 447 453) no Hoare annotation was computed. [2020-11-28 03:20:54,388 INFO L274 CegarLoopResult]: For program point L447-5(lines 447 453) no Hoare annotation was computed. [2020-11-28 03:20:54,388 INFO L274 CegarLoopResult]: For program point L382(lines 382 386) no Hoare annotation was computed. [2020-11-28 03:20:54,388 INFO L274 CegarLoopResult]: For program point L350(lines 350 356) no Hoare annotation was computed. [2020-11-28 03:20:54,388 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:20:54,388 INFO L274 CegarLoopResult]: For program point L350-2(lines 350 356) no Hoare annotation was computed. [2020-11-28 03:20:54,389 INFO L274 CegarLoopResult]: For program point L350-4(lines 350 356) no Hoare annotation was computed. [2020-11-28 03:20:54,389 INFO L274 CegarLoopResult]: For program point L86(lines 86 97) no Hoare annotation was computed. [2020-11-28 03:20:54,389 INFO L270 CegarLoopResult]: At program point L516-2(lines 516 530) the Hoare annotation is: false [2020-11-28 03:20:54,389 INFO L274 CegarLoopResult]: For program point L186(lines 186 203) no Hoare annotation was computed. [2020-11-28 03:20:54,389 INFO L274 CegarLoopResult]: For program point L186-1(lines 186 203) no Hoare annotation was computed. [2020-11-28 03:20:54,389 INFO L274 CegarLoopResult]: For program point L186-2(lines 186 203) no Hoare annotation was computed. [2020-11-28 03:20:54,389 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-11-28 03:20:54,389 INFO L270 CegarLoopResult]: At program point L452(lines 443 456) the Hoare annotation is: false [2020-11-28 03:20:54,389 INFO L270 CegarLoopResult]: At program point L452-1(lines 443 456) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-11-28 03:20:54,389 INFO L270 CegarLoopResult]: At program point L452-2(lines 443 456) the Hoare annotation is: false [2020-11-28 03:20:54,390 INFO L270 CegarLoopResult]: At program point L452-3(lines 443 456) the Hoare annotation is: false [2020-11-28 03:20:54,390 INFO L270 CegarLoopResult]: At program point L452-4(lines 443 456) the Hoare annotation is: false [2020-11-28 03:20:54,390 INFO L270 CegarLoopResult]: At program point L452-5(lines 443 456) the Hoare annotation is: false [2020-11-28 03:20:54,390 INFO L274 CegarLoopResult]: For program point L57(lines 56 101) no Hoare annotation was computed. [2020-11-28 03:20:54,390 INFO L274 CegarLoopResult]: For program point L520(lines 520 524) no Hoare annotation was computed. [2020-11-28 03:20:54,390 INFO L274 CegarLoopResult]: For program point L520-1(lines 128 134) no Hoare annotation was computed. [2020-11-28 03:20:54,391 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:20:54,391 INFO L274 CegarLoopResult]: For program point L223(lines 223 229) no Hoare annotation was computed. [2020-11-28 03:20:54,392 INFO L274 CegarLoopResult]: For program point L190(lines 190 198) no Hoare annotation was computed. [2020-11-28 03:20:54,392 INFO L274 CegarLoopResult]: For program point L223-2(lines 223 229) no Hoare annotation was computed. [2020-11-28 03:20:54,392 INFO L274 CegarLoopResult]: For program point L190-1(lines 190 198) no Hoare annotation was computed. [2020-11-28 03:20:54,392 INFO L274 CegarLoopResult]: For program point L190-2(lines 190 198) no Hoare annotation was computed. [2020-11-28 03:20:54,392 INFO L274 CegarLoopResult]: For program point L223-4(lines 223 229) no Hoare annotation was computed. [2020-11-28 03:20:54,392 INFO L274 CegarLoopResult]: For program point L58(lines 58 62) no Hoare annotation was computed. [2020-11-28 03:20:54,393 INFO L274 CegarLoopResult]: For program point L223-6(lines 223 229) no Hoare annotation was computed. [2020-11-28 03:20:54,393 INFO L274 CegarLoopResult]: For program point L223-8(lines 223 229) no Hoare annotation was computed. [2020-11-28 03:20:54,393 INFO L274 CegarLoopResult]: For program point L223-10(lines 223 229) no Hoare annotation was computed. [2020-11-28 03:20:54,393 INFO L274 CegarLoopResult]: For program point L587(lines 587 594) no Hoare annotation was computed. [2020-11-28 03:20:54,393 INFO L277 CegarLoopResult]: At program point L587-1(lines 587 594) the Hoare annotation is: true [2020-11-28 03:20:54,393 INFO L270 CegarLoopResult]: At program point L257(lines 252 260) the Hoare annotation is: false [2020-11-28 03:20:54,394 INFO L270 CegarLoopResult]: At program point L257-1(lines 252 260) the Hoare annotation is: false [2020-11-28 03:20:54,394 INFO L270 CegarLoopResult]: At program point L257-2(lines 252 260) the Hoare annotation is: false [2020-11-28 03:20:54,394 INFO L274 CegarLoopResult]: For program point L92(lines 92 96) no Hoare annotation was computed. [2020-11-28 03:20:54,394 INFO L274 CegarLoopResult]: For program point L92-2(lines 128 134) no Hoare annotation was computed. [2020-11-28 03:20:54,395 INFO L274 CegarLoopResult]: For program point L325(lines 325 329) no Hoare annotation was computed. [2020-11-28 03:20:54,395 INFO L274 CegarLoopResult]: For program point L325-2(lines 325 329) no Hoare annotation was computed. [2020-11-28 03:20:54,395 INFO L274 CegarLoopResult]: For program point L325-3(lines 325 329) no Hoare annotation was computed. [2020-11-28 03:20:54,395 INFO L274 CegarLoopResult]: For program point L160(lines 160 177) no Hoare annotation was computed. [2020-11-28 03:20:54,395 INFO L274 CegarLoopResult]: For program point L325-5(lines 325 329) no Hoare annotation was computed. [2020-11-28 03:20:54,395 INFO L274 CegarLoopResult]: For program point L160-1(lines 160 177) no Hoare annotation was computed. [2020-11-28 03:20:54,395 INFO L274 CegarLoopResult]: For program point L325-6(lines 325 329) no Hoare annotation was computed. [2020-11-28 03:20:54,395 INFO L274 CegarLoopResult]: For program point L160-2(lines 160 177) no Hoare annotation was computed. [2020-11-28 03:20:54,395 INFO L274 CegarLoopResult]: For program point L160-3(lines 160 177) no Hoare annotation was computed. [2020-11-28 03:20:54,396 INFO L274 CegarLoopResult]: For program point L325-8(lines 325 329) no Hoare annotation was computed. [2020-11-28 03:20:54,396 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:20:54,396 INFO L274 CegarLoopResult]: For program point L160-4(lines 160 177) no Hoare annotation was computed. [2020-11-28 03:20:54,396 INFO L274 CegarLoopResult]: For program point L160-5(lines 160 177) no Hoare annotation was computed. [2020-11-28 03:20:54,396 INFO L270 CegarLoopResult]: At program point L128(lines 127 146) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~3 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse1) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse1))) [2020-11-28 03:20:54,396 INFO L274 CegarLoopResult]: For program point L128-1(lines 128 134) no Hoare annotation was computed. [2020-11-28 03:20:54,396 INFO L270 CegarLoopResult]: At program point L128-2(lines 127 146) the Hoare annotation is: false [2020-11-28 03:20:54,396 INFO L270 CegarLoopResult]: At program point L128-3(lines 127 146) the Hoare annotation is: false [2020-11-28 03:20:54,396 INFO L270 CegarLoopResult]: At program point L492(lines 1 974) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-11-28 03:20:54,396 INFO L274 CegarLoopResult]: For program point L394(lines 394 398) no Hoare annotation was computed. [2020-11-28 03:20:54,397 INFO L274 CegarLoopResult]: For program point L164(lines 164 172) no Hoare annotation was computed. [2020-11-28 03:20:54,397 INFO L274 CegarLoopResult]: For program point L164-1(lines 164 172) no Hoare annotation was computed. [2020-11-28 03:20:54,397 INFO L274 CegarLoopResult]: For program point L164-2(lines 164 172) no Hoare annotation was computed. [2020-11-28 03:20:54,397 INFO L274 CegarLoopResult]: For program point L164-3(lines 164 172) no Hoare annotation was computed. [2020-11-28 03:20:54,397 INFO L274 CegarLoopResult]: For program point L164-4(lines 164 172) no Hoare annotation was computed. [2020-11-28 03:20:54,397 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:20:54,397 INFO L274 CegarLoopResult]: For program point L164-5(lines 164 172) no Hoare annotation was computed. [2020-11-28 03:20:54,397 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:20:54,398 INFO L270 CegarLoopResult]: At program point L462(lines 457 465) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~3 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-11-28 03:20:54,398 INFO L270 CegarLoopResult]: At program point L462-1(lines 457 465) the Hoare annotation is: false [2020-11-28 03:20:54,398 INFO L270 CegarLoopResult]: At program point L462-2(lines 457 465) the Hoare annotation is: false [2020-11-28 03:20:54,398 INFO L274 CegarLoopResult]: For program point L66(lines 66 72) no Hoare annotation was computed. [2020-11-28 03:20:54,398 INFO L270 CegarLoopResult]: At program point L66-1(lines 66 72) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse2 .cse3 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~3 0) .cse0 .cse1 .cse3))) [2020-11-28 03:20:54,398 INFO L270 CegarLoopResult]: At program point L331(lines 316 334) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~3 0) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|)) [2020-11-28 03:20:54,398 INFO L270 CegarLoopResult]: At program point L331-1(lines 316 334) the Hoare annotation is: false [2020-11-28 03:20:54,398 INFO L270 CegarLoopResult]: At program point L331-2(lines 316 334) the Hoare annotation is: false [2020-11-28 03:20:54,399 INFO L277 CegarLoopResult]: At program point L596(lines 577 599) the Hoare annotation is: true [2020-11-28 03:20:54,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:54 BoogieIcfgContainer [2020-11-28 03:20:54,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:20:54,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:54,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:54,447 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:54,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:33" (3/4) ... [2020-11-28 03:20:54,452 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:20:54,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-28 03:20:54,492 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-28 03:20:54,494 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 03:20:54,496 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:20:54,497 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:20:54,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:20:54,501 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:20:54,547 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((2 <= tmp && !(tmp == 0)) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) [2020-11-28 03:20:54,549 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) [2020-11-28 03:20:54,551 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-11-28 03:20:54,554 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || ((((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) [2020-11-28 03:20:54,555 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-11-28 03:20:54,556 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:20:54,567 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 0 && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result [2020-11-28 03:20:54,568 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((((tmp___0 == 0 && 1 == systemActive) && tmp == 1) && \result == 0) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2020-11-28 03:20:54,571 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) [2020-11-28 03:20:54,573 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) [2020-11-28 03:20:54,686 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_52ce3e78-fb52-41a9-b6c6-3bdb2f128c96/bin/uautomizer/witness.graphml [2020-11-28 03:20:54,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:54,688 INFO L168 Benchmark]: Toolchain (without parser) took 23148.72 ms. Allocated memory was 96.5 MB in the beginning and 383.8 MB in the end (delta: 287.3 MB). Free memory was 68.1 MB in the beginning and 242.8 MB in the end (delta: -174.7 MB). Peak memory consumption was 111.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,688 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory was 55.3 MB in the beginning and 55.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:54,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.02 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 63.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.92 ms. Allocated memory is still 96.5 MB. Free memory was 63.2 MB in the beginning and 59.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,690 INFO L168 Benchmark]: Boogie Preprocessor took 69.27 ms. Allocated memory is still 96.5 MB. Free memory was 59.0 MB in the beginning and 56.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,690 INFO L168 Benchmark]: RCFGBuilder took 1364.89 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.1 MB in the beginning and 86.1 MB in the end (delta: -29.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,691 INFO L168 Benchmark]: TraceAbstraction took 20624.48 ms. Allocated memory was 117.4 MB in the beginning and 383.8 MB in the end (delta: 266.3 MB). Free memory was 85.5 MB in the beginning and 254.4 MB in the end (delta: -168.9 MB). Peak memory consumption was 228.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,691 INFO L168 Benchmark]: Witness Printer took 240.02 ms. Allocated memory is still 383.8 MB. Free memory was 254.4 MB in the beginning and 242.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory was 55.3 MB in the beginning and 55.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 736.02 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 63.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.92 ms. Allocated memory is still 96.5 MB. Free memory was 63.2 MB in the beginning and 59.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.27 ms. Allocated memory is still 96.5 MB. Free memory was 59.0 MB in the beginning and 56.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1364.89 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.1 MB in the beginning and 86.1 MB in the end (delta: -29.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20624.48 ms. Allocated memory was 117.4 MB in the beginning and 383.8 MB in the end (delta: 266.3 MB). Free memory was 85.5 MB in the beginning and 254.4 MB in the end (delta: -168.9 MB). Peak memory consumption was 228.5 MB. Max. memory is 16.1 GB. * Witness Printer took 240.02 ms. Allocated memory is still 383.8 MB. Free memory was 254.4 MB in the beginning and 242.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: ((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: (((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || ((((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((tmp == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: (((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((((tmp___0 == 0 && 1 == systemActive) && tmp == 1) && \result == 0) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((2 <= tmp && !(tmp == 0)) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((tmp == 0 && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 138 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.2s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1966 SDtfs, 2925 SDslu, 3330 SDs, 0 SdLazy, 471 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 2663 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 54 LocationsWithAnnotation, 54 PreInvPairs, 196 NumberOfFragments, 578 HoareAnnotationTreeSize, 54 FomulaSimplifications, 25684348 FormulaSimplificationTreeSizeReduction, 4.8s HoareSimplificationTime, 54 FomulaSimplificationsInter, 1462466 FormulaSimplificationTreeSizeReductionInter, 8.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 65490 SizeOfPredicates, 8 NumberOfNonLiveVariables, 931 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 215/231 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...