./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.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_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/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 f34e156823368e08bfaeac3b7f4488efc17d7ca6 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:12:05,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:12:05,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:12:05,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:12:05,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:12:05,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:12:05,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:12:05,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:12:05,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:12:05,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:12:05,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:12:05,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:12:05,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:12:05,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:12:05,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:12:05,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:12:05,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:12:05,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:12:05,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:12:05,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:12:05,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:12:05,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:12:05,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:12:05,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:12:05,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:12:05,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:12:05,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:12:05,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:12:05,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:12:05,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:12:05,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:12:05,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:12:05,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:12:05,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:12:05,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:12:05,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:12:05,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:12:05,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:12:05,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:12:05,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:12:05,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:12:05,679 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:12:05,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:12:05,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:12:05,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:12:05,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:12:05,725 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:12:05,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:12:05,725 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:12:05,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:12:05,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:12:05,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:12:05,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:12:05,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:12:05,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:12:05,728 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:12:05,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:12:05,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:12:05,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:12:05,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:12:05,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:12:05,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:12:05,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:12:05,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:12:05,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:12:05,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:12:05,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:12:05,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:12:05,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:12:05,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:12:05,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:12:05,732 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_31a814f8-4ba0-467e-b458-ea4efb4c5c75/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34e156823368e08bfaeac3b7f4488efc17d7ca6 [2020-11-28 03:12:06,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:12:06,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:12:06,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:12:06,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:12:06,076 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:12:06,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-11-28 03:12:06,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/data/6ac418b9e/1f8a5f00e9a64a70803ae6e6527550d6/FLAG6c7ce049f [2020-11-28 03:12:06,788 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:12:06,788 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-11-28 03:12:06,803 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/data/6ac418b9e/1f8a5f00e9a64a70803ae6e6527550d6/FLAG6c7ce049f [2020-11-28 03:12:07,023 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/data/6ac418b9e/1f8a5f00e9a64a70803ae6e6527550d6 [2020-11-28 03:12:07,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:12:07,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:12:07,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:07,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:12:07,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:12:07,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e876372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07, skipping insertion in model container [2020-11-28 03:12:07,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:12:07,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:12:07,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:07,491 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:12:07,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:07,635 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:12:07,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07 WrapperNode [2020-11-28 03:12:07,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:07,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:07,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:12:07,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:12:07,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:07,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:12:07,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:12:07,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:12:07,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:12:07,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:12:07,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:12:07,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:12:07,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/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 03:12:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:12:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:12:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:12:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:12:09,211 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:12:09,212 INFO L298 CfgBuilder]: Removed 200 assume(true) statements. [2020-11-28 03:12:09,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:09 BoogieIcfgContainer [2020-11-28 03:12:09,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:12:09,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:12:09,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:12:09,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:12:09,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:12:07" (1/3) ... [2020-11-28 03:12:09,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d868731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:12:09, skipping insertion in model container [2020-11-28 03:12:09,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (2/3) ... [2020-11-28 03:12:09,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d868731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:12:09, skipping insertion in model container [2020-11-28 03:12:09,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:09" (3/3) ... [2020-11-28 03:12:09,224 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-11-28 03:12:09,237 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:12:09,242 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:12:09,255 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:12:09,297 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:12:09,297 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:12:09,297 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:12:09,297 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:12:09,297 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:12:09,298 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:12:09,298 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:12:09,298 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:12:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-11-28 03:12:09,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:12:09,319 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:09,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:12:09,320 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:09,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:09,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1844641052, now seen corresponding path program 1 times [2020-11-28 03:12:09,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:09,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532122495] [2020-11-28 03:12:09,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:09,642 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 03:12:09,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532122495] [2020-11-28 03:12:09,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:09,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:12:09,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814289839] [2020-11-28 03:12:09,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:12:09,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:09,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:12:09,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:12:09,673 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2020-11-28 03:12:09,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:09,725 INFO L93 Difference]: Finished difference Result 267 states and 398 transitions. [2020-11-28 03:12:09,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:12:09,727 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:12:09,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:09,744 INFO L225 Difference]: With dead ends: 267 [2020-11-28 03:12:09,745 INFO L226 Difference]: Without dead ends: 131 [2020-11-28 03:12:09,749 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 03:12:09,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-28 03:12:09,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-11-28 03:12:09,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-11-28 03:12:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2020-11-28 03:12:09,834 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2020-11-28 03:12:09,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:09,834 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2020-11-28 03:12:09,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:12:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2020-11-28 03:12:09,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:12:09,836 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:09,836 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 03:12:09,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:12:09,837 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:09,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:09,838 INFO L82 PathProgramCache]: Analyzing trace with hash -867808078, now seen corresponding path program 1 times [2020-11-28 03:12:09,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:09,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141432965] [2020-11-28 03:12:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:09,951 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 03:12:09,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141432965] [2020-11-28 03:12:09,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:09,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:12:09,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363557026] [2020-11-28 03:12:09,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:12:09,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:09,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:12:09,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:12:09,955 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 3 states. [2020-11-28 03:12:09,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:09,977 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2020-11-28 03:12:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:12:09,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:12:09,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:09,981 INFO L225 Difference]: With dead ends: 131 [2020-11-28 03:12:09,981 INFO L226 Difference]: Without dead ends: 53 [2020-11-28 03:12:09,984 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 03:12:09,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-28 03:12:09,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-28 03:12:09,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-28 03:12:09,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-11-28 03:12:09,998 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-11-28 03:12:09,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:09,998 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-11-28 03:12:09,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:12:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-11-28 03:12:09,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:12:10,000 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:10,000 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 03:12:10,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:12:10,000 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:10,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:10,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1529505855, now seen corresponding path program 1 times [2020-11-28 03:12:10,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:10,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373863938] [2020-11-28 03:12:10,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:10,128 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 03:12:10,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373863938] [2020-11-28 03:12:10,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:10,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:12:10,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571565181] [2020-11-28 03:12:10,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:12:10,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:10,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:12:10,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:12:10,131 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2020-11-28 03:12:10,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:10,164 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2020-11-28 03:12:10,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:12:10,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:12:10,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:10,166 INFO L225 Difference]: With dead ends: 100 [2020-11-28 03:12:10,166 INFO L226 Difference]: Without dead ends: 53 [2020-11-28 03:12:10,167 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 03:12:10,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-28 03:12:10,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-28 03:12:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-28 03:12:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2020-11-28 03:12:10,176 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2020-11-28 03:12:10,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:10,177 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2020-11-28 03:12:10,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:12:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2020-11-28 03:12:10,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:12:10,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:10,178 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 03:12:10,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:12:10,179 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:10,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:10,180 INFO L82 PathProgramCache]: Analyzing trace with hash 583703192, now seen corresponding path program 1 times [2020-11-28 03:12:10,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:10,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104451384] [2020-11-28 03:12:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:10,283 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 03:12:10,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104451384] [2020-11-28 03:12:10,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:10,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:12:10,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859137514] [2020-11-28 03:12:10,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:12:10,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:10,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:12:10,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:12:10,287 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand 3 states. [2020-11-28 03:12:10,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:10,352 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2020-11-28 03:12:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:12:10,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:12:10,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:10,354 INFO L225 Difference]: With dead ends: 121 [2020-11-28 03:12:10,355 INFO L226 Difference]: Without dead ends: 74 [2020-11-28 03:12:10,355 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 03:12:10,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-28 03:12:10,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2020-11-28 03:12:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:12:10,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2020-11-28 03:12:10,365 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2020-11-28 03:12:10,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:10,366 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2020-11-28 03:12:10,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:12:10,366 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2020-11-28 03:12:10,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:12:10,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:10,367 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 03:12:10,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:12:10,368 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:10,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:10,369 INFO L82 PathProgramCache]: Analyzing trace with hash -198690772, now seen corresponding path program 1 times [2020-11-28 03:12:10,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:10,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870372509] [2020-11-28 03:12:10,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:10,523 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 03:12:10,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870372509] [2020-11-28 03:12:10,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:10,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:12:10,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937144857] [2020-11-28 03:12:10,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:10,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:10,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:10,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:10,526 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 5 states. [2020-11-28 03:12:10,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:10,689 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2020-11-28 03:12:10,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:12:10,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 03:12:10,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:10,692 INFO L225 Difference]: With dead ends: 253 [2020-11-28 03:12:10,692 INFO L226 Difference]: Without dead ends: 187 [2020-11-28 03:12:10,693 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 03:12:10,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-11-28 03:12:10,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2020-11-28 03:12:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-28 03:12:10,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2020-11-28 03:12:10,719 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2020-11-28 03:12:10,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:10,721 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2020-11-28 03:12:10,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:10,722 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2020-11-28 03:12:10,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:12:10,725 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:10,725 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 03:12:10,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:12:10,726 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:10,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:10,727 INFO L82 PathProgramCache]: Analyzing trace with hash 2088460330, now seen corresponding path program 1 times [2020-11-28 03:12:10,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:10,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385385234] [2020-11-28 03:12:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:10,829 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 03:12:10,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385385234] [2020-11-28 03:12:10,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:10,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:12:10,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597709405] [2020-11-28 03:12:10,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:12:10,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:10,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:12:10,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:12:10,832 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 4 states. [2020-11-28 03:12:10,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:10,992 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2020-11-28 03:12:10,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:12:10,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-28 03:12:10,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:10,995 INFO L225 Difference]: With dead ends: 238 [2020-11-28 03:12:10,995 INFO L226 Difference]: Without dead ends: 172 [2020-11-28 03:12:10,996 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 03:12:10,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-11-28 03:12:11,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2020-11-28 03:12:11,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-28 03:12:11,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2020-11-28 03:12:11,025 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2020-11-28 03:12:11,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:11,025 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2020-11-28 03:12:11,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:12:11,026 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2020-11-28 03:12:11,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:12:11,027 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:11,027 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 03:12:11,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:12:11,028 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:11,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:11,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1948341528, now seen corresponding path program 1 times [2020-11-28 03:12:11,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:11,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866991620] [2020-11-28 03:12:11,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:11,147 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 03:12:11,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866991620] [2020-11-28 03:12:11,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:11,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:12:11,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250701050] [2020-11-28 03:12:11,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:12:11,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:11,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:12:11,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:12:11,151 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand 4 states. [2020-11-28 03:12:11,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:11,236 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2020-11-28 03:12:11,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:12:11,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-28 03:12:11,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:11,242 INFO L225 Difference]: With dead ends: 473 [2020-11-28 03:12:11,242 INFO L226 Difference]: Without dead ends: 352 [2020-11-28 03:12:11,244 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 03:12:11,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-11-28 03:12:11,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2020-11-28 03:12:11,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-28 03:12:11,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2020-11-28 03:12:11,272 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2020-11-28 03:12:11,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:11,272 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2020-11-28 03:12:11,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:12:11,273 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2020-11-28 03:12:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:12:11,279 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:11,279 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 03:12:11,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:12:11,280 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:11,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1953598758, now seen corresponding path program 1 times [2020-11-28 03:12:11,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:11,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3866581] [2020-11-28 03:12:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:11,360 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 03:12:11,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3866581] [2020-11-28 03:12:11,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:11,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:12:11,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17969770] [2020-11-28 03:12:11,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:11,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:11,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:11,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:11,362 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand 5 states. [2020-11-28 03:12:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:11,486 INFO L93 Difference]: Finished difference Result 512 states and 712 transitions. [2020-11-28 03:12:11,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:12:11,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-28 03:12:11,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:11,489 INFO L225 Difference]: With dead ends: 512 [2020-11-28 03:12:11,490 INFO L226 Difference]: Without dead ends: 349 [2020-11-28 03:12:11,491 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 03:12:11,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-11-28 03:12:11,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 178. [2020-11-28 03:12:11,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-28 03:12:11,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2020-11-28 03:12:11,519 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2020-11-28 03:12:11,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:11,519 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2020-11-28 03:12:11,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:11,520 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2020-11-28 03:12:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:12:11,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:11,521 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 03:12:11,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:12:11,522 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:11,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:11,523 INFO L82 PathProgramCache]: Analyzing trace with hash 2005513094, now seen corresponding path program 1 times [2020-11-28 03:12:11,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:11,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398271256] [2020-11-28 03:12:11,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:11,599 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 03:12:11,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398271256] [2020-11-28 03:12:11,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:11,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:12:11,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172409313] [2020-11-28 03:12:11,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:12:11,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:11,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:12:11,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:12:11,601 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand 6 states. [2020-11-28 03:12:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:11,776 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2020-11-28 03:12:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:12:11,777 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-11-28 03:12:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:11,783 INFO L225 Difference]: With dead ends: 912 [2020-11-28 03:12:11,783 INFO L226 Difference]: Without dead ends: 740 [2020-11-28 03:12:11,784 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 03:12:11,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-11-28 03:12:11,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2020-11-28 03:12:11,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-28 03:12:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2020-11-28 03:12:11,832 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2020-11-28 03:12:11,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:11,834 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2020-11-28 03:12:11,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:12:11,835 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2020-11-28 03:12:11,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:12:11,836 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:11,837 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 03:12:11,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:12:11,839 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:11,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:11,840 INFO L82 PathProgramCache]: Analyzing trace with hash -514446840, now seen corresponding path program 1 times [2020-11-28 03:12:11,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:11,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919135163] [2020-11-28 03:12:11,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:11,965 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 03:12:11,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919135163] [2020-11-28 03:12:11,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:11,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:12:11,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399487634] [2020-11-28 03:12:11,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:11,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:11,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:11,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:11,967 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand 5 states. [2020-11-28 03:12:12,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:12,188 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2020-11-28 03:12:12,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:12:12,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-11-28 03:12:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:12,195 INFO L225 Difference]: With dead ends: 752 [2020-11-28 03:12:12,195 INFO L226 Difference]: Without dead ends: 510 [2020-11-28 03:12:12,196 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 03:12:12,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-11-28 03:12:12,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2020-11-28 03:12:12,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-11-28 03:12:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2020-11-28 03:12:12,229 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2020-11-28 03:12:12,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:12,229 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2020-11-28 03:12:12,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:12,229 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2020-11-28 03:12:12,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:12:12,230 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:12,230 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 03:12:12,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:12:12,231 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:12,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:12,231 INFO L82 PathProgramCache]: Analyzing trace with hash -12835069, now seen corresponding path program 1 times [2020-11-28 03:12:12,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:12,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547876819] [2020-11-28 03:12:12,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:12,297 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 03:12:12,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547876819] [2020-11-28 03:12:12,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:12,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:12:12,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095683659] [2020-11-28 03:12:12,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:12,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:12,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:12,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:12,301 INFO L87 Difference]: Start difference. First operand 332 states and 433 transitions. Second operand 5 states. [2020-11-28 03:12:12,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:12,426 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2020-11-28 03:12:12,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:12:12,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-11-28 03:12:12,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:12,430 INFO L225 Difference]: With dead ends: 753 [2020-11-28 03:12:12,430 INFO L226 Difference]: Without dead ends: 427 [2020-11-28 03:12:12,432 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 03:12:12,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-11-28 03:12:12,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2020-11-28 03:12:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-11-28 03:12:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2020-11-28 03:12:12,470 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2020-11-28 03:12:12,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:12,471 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2020-11-28 03:12:12,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:12,472 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2020-11-28 03:12:12,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:12:12,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:12,473 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 03:12:12,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:12:12,474 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:12,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:12,475 INFO L82 PathProgramCache]: Analyzing trace with hash -85221627, now seen corresponding path program 1 times [2020-11-28 03:12:12,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:12,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634683373] [2020-11-28 03:12:12,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:12,550 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 03:12:12,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634683373] [2020-11-28 03:12:12,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:12,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:12:12,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185198978] [2020-11-28 03:12:12,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:12:12,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:12,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:12:12,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:12:12,552 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand 4 states. [2020-11-28 03:12:12,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:12,628 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2020-11-28 03:12:12,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:12:12,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-11-28 03:12:12,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:12,632 INFO L225 Difference]: With dead ends: 676 [2020-11-28 03:12:12,632 INFO L226 Difference]: Without dead ends: 350 [2020-11-28 03:12:12,633 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 03:12:12,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-11-28 03:12:12,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2020-11-28 03:12:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-28 03:12:12,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2020-11-28 03:12:12,669 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2020-11-28 03:12:12,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:12,670 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2020-11-28 03:12:12,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:12:12,670 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2020-11-28 03:12:12,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-28 03:12:12,671 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:12,671 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 03:12:12,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:12:12,672 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:12,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:12,672 INFO L82 PathProgramCache]: Analyzing trace with hash -650520375, now seen corresponding path program 1 times [2020-11-28 03:12:12,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:12,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127045618] [2020-11-28 03:12:12,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:12,778 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 03:12:12,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127045618] [2020-11-28 03:12:12,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:12,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:12:12,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516289532] [2020-11-28 03:12:12,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:12,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:12,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:12,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:12,780 INFO L87 Difference]: Start difference. First operand 266 states and 341 transitions. Second operand 5 states. [2020-11-28 03:12:12,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:12,903 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2020-11-28 03:12:12,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:12:12,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-11-28 03:12:12,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:12,914 INFO L225 Difference]: With dead ends: 878 [2020-11-28 03:12:12,914 INFO L226 Difference]: Without dead ends: 666 [2020-11-28 03:12:12,915 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 03:12:12,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-11-28 03:12:12,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2020-11-28 03:12:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-28 03:12:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2020-11-28 03:12:12,956 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2020-11-28 03:12:12,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:12,957 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2020-11-28 03:12:12,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2020-11-28 03:12:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-28 03:12:12,959 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:12,959 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 03:12:12,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:12:12,960 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:12,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:12,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1043547385, now seen corresponding path program 1 times [2020-11-28 03:12:12,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:12,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223552121] [2020-11-28 03:12:12,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:13,030 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 03:12:13,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223552121] [2020-11-28 03:12:13,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:13,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:12:13,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312384514] [2020-11-28 03:12:13,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:13,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:13,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:13,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:13,033 INFO L87 Difference]: Start difference. First operand 272 states and 347 transitions. Second operand 5 states. [2020-11-28 03:12:13,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:13,287 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2020-11-28 03:12:13,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:12:13,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-11-28 03:12:13,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:13,292 INFO L225 Difference]: With dead ends: 708 [2020-11-28 03:12:13,292 INFO L226 Difference]: Without dead ends: 706 [2020-11-28 03:12:13,294 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 03:12:13,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-11-28 03:12:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2020-11-28 03:12:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-28 03:12:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2020-11-28 03:12:13,333 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2020-11-28 03:12:13,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:13,334 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2020-11-28 03:12:13,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:13,334 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2020-11-28 03:12:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-28 03:12:13,335 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:13,336 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 03:12:13,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:12:13,336 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:13,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:13,337 INFO L82 PathProgramCache]: Analyzing trace with hash 614015185, now seen corresponding path program 1 times [2020-11-28 03:12:13,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:13,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778854038] [2020-11-28 03:12:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:13,440 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 03:12:13,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778854038] [2020-11-28 03:12:13,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11281024] [2020-11-28 03:12:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/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 03:12:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:13,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:12:13,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:12:13,746 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 03:12:13,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:12:13,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-11-28 03:12:13,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752945386] [2020-11-28 03:12:13,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:12:13,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:13,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:12:13,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:12:13,748 INFO L87 Difference]: Start difference. First operand 272 states and 345 transitions. Second operand 6 states. [2020-11-28 03:12:14,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:14,197 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2020-11-28 03:12:14,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:12:14,198 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-11-28 03:12:14,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:14,202 INFO L225 Difference]: With dead ends: 855 [2020-11-28 03:12:14,202 INFO L226 Difference]: Without dead ends: 637 [2020-11-28 03:12:14,205 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 03:12:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-11-28 03:12:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2020-11-28 03:12:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-11-28 03:12:14,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2020-11-28 03:12:14,268 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2020-11-28 03:12:14,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:14,268 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2020-11-28 03:12:14,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:12:14,268 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2020-11-28 03:12:14,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-28 03:12:14,269 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:14,270 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 03:12:14,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-28 03:12:14,485 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:14,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:14,485 INFO L82 PathProgramCache]: Analyzing trace with hash -18124376, now seen corresponding path program 2 times [2020-11-28 03:12:14,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:14,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220169315] [2020-11-28 03:12:14,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:14,766 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 03:12:14,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220169315] [2020-11-28 03:12:14,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:14,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:12:14,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28060654] [2020-11-28 03:12:14,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:14,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:14,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:14,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:14,769 INFO L87 Difference]: Start difference. First operand 386 states and 495 transitions. Second operand 5 states. [2020-11-28 03:12:15,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:15,496 INFO L93 Difference]: Finished difference Result 1180 states and 1538 transitions. [2020-11-28 03:12:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:12:15,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-11-28 03:12:15,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:15,503 INFO L225 Difference]: With dead ends: 1180 [2020-11-28 03:12:15,503 INFO L226 Difference]: Without dead ends: 846 [2020-11-28 03:12:15,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:12:15,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-11-28 03:12:15,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 532. [2020-11-28 03:12:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-11-28 03:12:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2020-11-28 03:12:15,625 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2020-11-28 03:12:15,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:15,625 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2020-11-28 03:12:15,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:15,626 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2020-11-28 03:12:15,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-28 03:12:15,633 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:15,634 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 03:12:15,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:12:15,634 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:15,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:15,636 INFO L82 PathProgramCache]: Analyzing trace with hash 256635238, now seen corresponding path program 1 times [2020-11-28 03:12:15,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:15,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003807044] [2020-11-28 03:12:15,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:15,748 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-28 03:12:15,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003807044] [2020-11-28 03:12:15,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346595030] [2020-11-28 03:12:15,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/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 03:12:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:15,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:12:15,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:12:15,977 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 03:12:15,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:12:15,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-11-28 03:12:15,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005078084] [2020-11-28 03:12:15,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:15,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:15,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:15,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:12:15,981 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand 5 states. [2020-11-28 03:12:16,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:16,161 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2020-11-28 03:12:16,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:12:16,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-11-28 03:12:16,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:16,162 INFO L225 Difference]: With dead ends: 934 [2020-11-28 03:12:16,162 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:12:16,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 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 03:12:16,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:12:16,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:12:16,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:12:16,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:12:16,165 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-11-28 03:12:16,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:16,165 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:12:16,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:16,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:12:16,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:12:16,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-11-28 03:12:16,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:12:17,458 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 284 DAG size of output: 253 [2020-11-28 03:12:17,782 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 143 [2020-11-28 03:12:18,444 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 222 [2020-11-28 03:12:19,204 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 234 [2020-11-28 03:12:19,852 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2020-11-28 03:12:20,164 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 140 [2020-11-28 03:12:20,917 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2020-11-28 03:12:21,195 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 167 [2020-11-28 03:12:21,375 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 140 [2020-11-28 03:12:24,002 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 247 DAG size of output: 29 [2020-11-28 03:12:24,408 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 22 [2020-11-28 03:12:25,029 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 23 [2020-11-28 03:12:25,223 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 24 [2020-11-28 03:12:26,562 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 220 DAG size of output: 29 [2020-11-28 03:12:28,053 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 232 DAG size of output: 22 [2020-11-28 03:12:29,903 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2020-11-28 03:12:30,302 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 32 [2020-11-28 03:12:31,936 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2020-11-28 03:12:32,772 WARN L193 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 40 [2020-11-28 03:12:33,316 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 31 [2020-11-28 03:12:33,467 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 16 [2020-11-28 03:12:33,681 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 24 [2020-11-28 03:12:33,684 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:12:33,684 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:12:33,684 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:12:33,684 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-28 03:12:33,684 INFO L274 CegarLoopResult]: For program point L930(lines 929 976) no Hoare annotation was computed. [2020-11-28 03:12:33,684 INFO L274 CegarLoopResult]: For program point L798(lines 798 804) no Hoare annotation was computed. [2020-11-28 03:12:33,684 INFO L274 CegarLoopResult]: For program point L765(lines 765 773) no Hoare annotation was computed. [2020-11-28 03:12:33,684 INFO L274 CegarLoopResult]: For program point L798-2(lines 798 804) no Hoare annotation was computed. [2020-11-28 03:12:33,685 INFO L274 CegarLoopResult]: For program point L765-1(lines 765 773) no Hoare annotation was computed. [2020-11-28 03:12:33,685 INFO L274 CegarLoopResult]: For program point L765-2(lines 765 773) no Hoare annotation was computed. [2020-11-28 03:12:33,685 INFO L274 CegarLoopResult]: For program point L798-4(lines 798 804) no Hoare annotation was computed. [2020-11-28 03:12:33,685 INFO L274 CegarLoopResult]: For program point L798-6(lines 798 804) no Hoare annotation was computed. [2020-11-28 03:12:33,685 INFO L274 CegarLoopResult]: For program point L798-8(lines 798 804) no Hoare annotation was computed. [2020-11-28 03:12:33,685 INFO L274 CegarLoopResult]: For program point L798-10(lines 798 804) no Hoare annotation was computed. [2020-11-28 03:12:33,685 INFO L274 CegarLoopResult]: For program point L931(lines 931 935) no Hoare annotation was computed. [2020-11-28 03:12:33,686 INFO L270 CegarLoopResult]: At program point L832(lines 827 835) the Hoare annotation is: false [2020-11-28 03:12:33,686 INFO L270 CegarLoopResult]: At program point L832-1(lines 827 835) the Hoare annotation is: false [2020-11-28 03:12:33,686 INFO L270 CegarLoopResult]: At program point L832-2(lines 827 835) the Hoare annotation is: false [2020-11-28 03:12:33,686 INFO L270 CegarLoopResult]: At program point L568-2(lines 568 582) the Hoare annotation is: false [2020-11-28 03:12:33,686 INFO L274 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-11-28 03:12:33,686 INFO L274 CegarLoopResult]: For program point L536(lines 536 542) no Hoare annotation was computed. [2020-11-28 03:12:33,686 INFO L274 CegarLoopResult]: For program point L536-1(lines 536 542) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L536-2(lines 536 542) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L536-3(lines 536 542) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L536-4(lines 536 542) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L536-5(lines 536 542) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L900(lines 900 904) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L900-2(lines 900 904) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L900-3(lines 900 904) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L735(lines 735 752) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L900-5(lines 900 904) no Hoare annotation was computed. [2020-11-28 03:12:33,687 INFO L274 CegarLoopResult]: For program point L735-1(lines 735 752) no Hoare annotation was computed. [2020-11-28 03:12:33,688 INFO L274 CegarLoopResult]: For program point L900-6(lines 900 904) no Hoare annotation was computed. [2020-11-28 03:12:33,688 INFO L274 CegarLoopResult]: For program point L735-2(lines 735 752) no Hoare annotation was computed. [2020-11-28 03:12:33,688 INFO L274 CegarLoopResult]: For program point L735-3(lines 735 752) no Hoare annotation was computed. [2020-11-28 03:12:33,688 INFO L274 CegarLoopResult]: For program point L900-8(lines 900 904) no Hoare annotation was computed. [2020-11-28 03:12:33,688 INFO L274 CegarLoopResult]: For program point L735-4(lines 735 752) no Hoare annotation was computed. [2020-11-28 03:12:33,688 INFO L274 CegarLoopResult]: For program point L735-5(lines 735 752) no Hoare annotation was computed. [2020-11-28 03:12:33,688 INFO L274 CegarLoopResult]: For program point L471(lines 471 475) no Hoare annotation was computed. [2020-11-28 03:12:33,688 INFO L274 CegarLoopResult]: For program point L967(lines 967 971) no Hoare annotation was computed. [2020-11-28 03:12:33,689 INFO L270 CegarLoopResult]: At program point L967-2(lines 703 709) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse1 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3))) [2020-11-28 03:12:33,689 INFO L270 CegarLoopResult]: At program point L703(lines 702 721) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse2 (<= 1 ~waterLevel~0)))) [2020-11-28 03:12:33,690 INFO L274 CegarLoopResult]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2020-11-28 03:12:33,690 INFO L270 CegarLoopResult]: At program point L703-2(lines 702 721) the Hoare annotation is: false [2020-11-28 03:12:33,690 INFO L270 CegarLoopResult]: At program point L703-3(lines 702 721) the Hoare annotation is: false [2020-11-28 03:12:33,690 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:12:33,690 INFO L274 CegarLoopResult]: For program point L572(lines 572 576) no Hoare annotation was computed. [2020-11-28 03:12:33,690 INFO L274 CegarLoopResult]: For program point L572-1(lines 703 709) no Hoare annotation was computed. [2020-11-28 03:12:33,691 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-28 03:12:33,691 INFO L274 CegarLoopResult]: For program point L441-1(line 441) no Hoare annotation was computed. [2020-11-28 03:12:33,691 INFO L274 CegarLoopResult]: For program point L441-2(line 441) no Hoare annotation was computed. [2020-11-28 03:12:33,691 INFO L274 CegarLoopResult]: For program point L739(lines 739 747) no Hoare annotation was computed. [2020-11-28 03:12:33,691 INFO L274 CegarLoopResult]: For program point L739-1(lines 739 747) no Hoare annotation was computed. [2020-11-28 03:12:33,691 INFO L274 CegarLoopResult]: For program point L739-2(lines 739 747) no Hoare annotation was computed. [2020-11-28 03:12:33,692 INFO L274 CegarLoopResult]: For program point L739-3(lines 739 747) no Hoare annotation was computed. [2020-11-28 03:12:33,692 INFO L274 CegarLoopResult]: For program point L739-4(lines 739 747) no Hoare annotation was computed. [2020-11-28 03:12:33,692 INFO L274 CegarLoopResult]: For program point L739-5(lines 739 747) no Hoare annotation was computed. [2020-11-28 03:12:33,692 INFO L270 CegarLoopResult]: At program point L541(lines 532 545) the Hoare annotation is: false [2020-11-28 03:12:33,692 INFO L270 CegarLoopResult]: At program point L541-1(lines 532 545) 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 03:12:33,692 INFO L270 CegarLoopResult]: At program point L541-2(lines 532 545) the Hoare annotation is: false [2020-11-28 03:12:33,693 INFO L270 CegarLoopResult]: At program point L541-3(lines 532 545) the Hoare annotation is: false [2020-11-28 03:12:33,693 INFO L270 CegarLoopResult]: At program point L541-4(lines 532 545) the Hoare annotation is: false [2020-11-28 03:12:33,693 INFO L270 CegarLoopResult]: At program point L541-5(lines 532 545) the Hoare annotation is: false [2020-11-28 03:12:33,693 INFO L274 CegarLoopResult]: For program point L939(lines 939 945) no Hoare annotation was computed. [2020-11-28 03:12:33,693 INFO L270 CegarLoopResult]: At program point L939-1(lines 939 945) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse4 .cse2))) [2020-11-28 03:12:33,694 INFO L270 CegarLoopResult]: At program point L906(lines 891 909) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~9 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-11-28 03:12:33,694 INFO L270 CegarLoopResult]: At program point L906-1(lines 891 909) the Hoare annotation is: false [2020-11-28 03:12:33,694 INFO L270 CegarLoopResult]: At program point L906-2(lines 891 909) the Hoare annotation is: false [2020-11-28 03:12:33,694 INFO L270 CegarLoopResult]: At program point L710(lines 710 716) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)))) [2020-11-28 03:12:33,694 INFO L270 CegarLoopResult]: At program point L710-1(lines 710 716) the Hoare annotation is: false [2020-11-28 03:12:33,695 INFO L274 CegarLoopResult]: For program point L644(lines 644 651) no Hoare annotation was computed. [2020-11-28 03:12:33,695 INFO L270 CegarLoopResult]: At program point L710-2(lines 710 716) the Hoare annotation is: false [2020-11-28 03:12:33,695 INFO L277 CegarLoopResult]: At program point L644-1(lines 644 651) the Hoare annotation is: true [2020-11-28 03:12:33,695 INFO L270 CegarLoopResult]: At program point L977(lines 928 978) the Hoare annotation is: false [2020-11-28 03:12:33,695 INFO L270 CegarLoopResult]: At program point L680(lines 1 984) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-11-28 03:12:33,695 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:12:33,696 INFO L274 CegarLoopResult]: For program point L483(lines 483 487) no Hoare annotation was computed. [2020-11-28 03:12:33,696 INFO L274 CegarLoopResult]: For program point L881(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,696 INFO L274 CegarLoopResult]: For program point L881-2(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,696 INFO L274 CegarLoopResult]: For program point L881-3(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,696 INFO L274 CegarLoopResult]: For program point L881-5(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,696 INFO L274 CegarLoopResult]: For program point L881-6(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,697 INFO L270 CegarLoopResult]: At program point L617(lines 613 619) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-11-28 03:12:33,697 INFO L274 CegarLoopResult]: For program point L881-8(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,697 INFO L274 CegarLoopResult]: For program point L881-9(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,697 INFO L270 CegarLoopResult]: At program point L551(lines 546 554) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-11-28 03:12:33,697 INFO L270 CegarLoopResult]: At program point L551-1(lines 546 554) the Hoare annotation is: false [2020-11-28 03:12:33,697 INFO L274 CegarLoopResult]: For program point L881-11(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,698 INFO L270 CegarLoopResult]: At program point L551-2(lines 546 554) the Hoare annotation is: false [2020-11-28 03:12:33,698 INFO L274 CegarLoopResult]: For program point L881-12(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,698 INFO L274 CegarLoopResult]: For program point L419(lines 419 432) no Hoare annotation was computed. [2020-11-28 03:12:33,698 INFO L274 CegarLoopResult]: For program point L881-14(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,698 INFO L270 CegarLoopResult]: At program point L419-1(lines 1 984) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2020-11-28 03:12:33,698 INFO L274 CegarLoopResult]: For program point L881-15(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,699 INFO L274 CegarLoopResult]: For program point L419-2(lines 419 432) no Hoare annotation was computed. [2020-11-28 03:12:33,699 INFO L270 CegarLoopResult]: At program point L419-3(lines 1 984) the Hoare annotation is: false [2020-11-28 03:12:33,699 INFO L274 CegarLoopResult]: For program point L881-17(lines 881 885) no Hoare annotation was computed. [2020-11-28 03:12:33,699 INFO L274 CegarLoopResult]: For program point L419-4(lines 419 432) no Hoare annotation was computed. [2020-11-28 03:12:33,699 INFO L270 CegarLoopResult]: At program point L419-5(lines 1 984) the Hoare annotation is: false [2020-11-28 03:12:33,699 INFO L274 CegarLoopResult]: For program point L949(lines 949 955) no Hoare annotation was computed. [2020-11-28 03:12:33,700 INFO L270 CegarLoopResult]: At program point L949-1(lines 949 955) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse1 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3))) [2020-11-28 03:12:33,700 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:12:33,700 INFO L277 CegarLoopResult]: At program point L653(lines 634 656) the Hoare annotation is: true [2020-11-28 03:12:33,700 INFO L274 CegarLoopResult]: For program point L423(lines 423 429) no Hoare annotation was computed. [2020-11-28 03:12:33,700 INFO L274 CegarLoopResult]: For program point L423-2(lines 423 429) no Hoare annotation was computed. [2020-11-28 03:12:33,700 INFO L274 CegarLoopResult]: For program point L423-4(lines 423 429) no Hoare annotation was computed. [2020-11-28 03:12:33,700 INFO L270 CegarLoopResult]: At program point L688(lines 683 691) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-11-28 03:12:33,701 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:12:33,701 INFO L270 CegarLoopResult]: At program point L887(lines 872 890) the Hoare annotation is: false [2020-11-28 03:12:33,701 INFO L270 CegarLoopResult]: At program point L887-1(lines 872 890) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 1) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2020-11-28 03:12:33,701 INFO L270 CegarLoopResult]: At program point L887-2(lines 872 890) the Hoare annotation is: false [2020-11-28 03:12:33,702 INFO L270 CegarLoopResult]: At program point L887-3(lines 872 890) the Hoare annotation is: false [2020-11-28 03:12:33,702 INFO L270 CegarLoopResult]: At program point L887-4(lines 872 890) the Hoare annotation is: false [2020-11-28 03:12:33,702 INFO L270 CegarLoopResult]: At program point L887-5(lines 872 890) the Hoare annotation is: false [2020-11-28 03:12:33,702 INFO L274 CegarLoopResult]: For program point L459(lines 459 463) no Hoare annotation was computed. [2020-11-28 03:12:33,702 INFO L274 CegarLoopResult]: For program point L459-3(lines 459 463) no Hoare annotation was computed. [2020-11-28 03:12:33,702 INFO L274 CegarLoopResult]: For program point L459-6(lines 459 463) no Hoare annotation was computed. [2020-11-28 03:12:33,702 INFO L270 CegarLoopResult]: At program point L823(lines 816 826) the Hoare annotation is: false [2020-11-28 03:12:33,703 INFO L270 CegarLoopResult]: At program point L823-1(lines 816 826) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2020-11-28 03:12:33,703 INFO L270 CegarLoopResult]: At program point L823-2(lines 816 826) the Hoare annotation is: false [2020-11-28 03:12:33,703 INFO L270 CegarLoopResult]: At program point L823-3(lines 816 826) the Hoare annotation is: false [2020-11-28 03:12:33,703 INFO L270 CegarLoopResult]: At program point L823-4(lines 816 826) the Hoare annotation is: false [2020-11-28 03:12:33,703 INFO L270 CegarLoopResult]: At program point L823-5(lines 816 826) the Hoare annotation is: false [2020-11-28 03:12:33,703 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:12:33,704 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:12:33,704 INFO L270 CegarLoopResult]: At program point L528(lines 523 531) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-11-28 03:12:33,704 INFO L270 CegarLoopResult]: At program point L528-1(lines 523 531) the Hoare annotation is: false [2020-11-28 03:12:33,704 INFO L270 CegarLoopResult]: At program point L528-2(lines 523 531) the Hoare annotation is: false [2020-11-28 03:12:33,704 INFO L270 CegarLoopResult]: At program point L496(lines 491 499) the Hoare annotation is: false [2020-11-28 03:12:33,705 INFO L270 CegarLoopResult]: At program point L496-1(lines 491 499) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2020-11-28 03:12:33,705 INFO L270 CegarLoopResult]: At program point L496-2(lines 491 499) the Hoare annotation is: false [2020-11-28 03:12:33,705 INFO L270 CegarLoopResult]: At program point L496-3(lines 491 499) the Hoare annotation is: false [2020-11-28 03:12:33,705 INFO L270 CegarLoopResult]: At program point L496-4(lines 491 499) the Hoare annotation is: false [2020-11-28 03:12:33,705 INFO L270 CegarLoopResult]: At program point L496-5(lines 491 499) the Hoare annotation is: false [2020-11-28 03:12:33,706 INFO L274 CegarLoopResult]: For program point L959(lines 959 972) no Hoare annotation was computed. [2020-11-28 03:12:33,706 INFO L274 CegarLoopResult]: For program point L761(lines 761 778) no Hoare annotation was computed. [2020-11-28 03:12:33,706 INFO L274 CegarLoopResult]: For program point L761-1(lines 761 778) no Hoare annotation was computed. [2020-11-28 03:12:33,706 INFO L274 CegarLoopResult]: For program point L761-2(lines 761 778) no Hoare annotation was computed. [2020-11-28 03:12:33,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:12:33 BoogieIcfgContainer [2020-11-28 03:12:33,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:12:33,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:12:33,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:12:33,740 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:12:33,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:09" (3/4) ... [2020-11-28 03:12:33,744 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:12:33,771 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-28 03:12:33,773 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-28 03:12:33,775 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 03:12:33,777 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:12:33,778 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:12:33,779 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:12:33,781 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:12:33,810 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && 2 <= \result) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && 2 <= tmp) && tmp == 0) [2020-11-28 03:12:33,811 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) [2020-11-28 03:12:33,812 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-11-28 03:12:33,814 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= \result) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2020-11-28 03:12:33,815 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-11-28 03:12:33,816 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 03:12:33,816 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 0 && 1 == systemActive) && tmp == 0) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && splverifierCounter == 0) && 1 <= waterLevel [2020-11-28 03:12:33,817 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp___0 == 0 && tmp == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) [2020-11-28 03:12:33,819 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 [2020-11-28 03:12:33,820 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 [2020-11-28 03:12:33,889 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_31a814f8-4ba0-467e-b458-ea4efb4c5c75/bin/uautomizer/witness.graphml [2020-11-28 03:12:33,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:12:33,891 INFO L168 Benchmark]: Toolchain (without parser) took 26862.97 ms. Allocated memory was 88.1 MB in the beginning and 337.6 MB in the end (delta: 249.6 MB). Free memory was 55.7 MB in the beginning and 189.7 MB in the end (delta: -134.1 MB). Peak memory consumption was 115.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:33,891 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 88.1 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:33,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.01 ms. Allocated memory is still 88.1 MB. Free memory was 55.5 MB in the beginning and 53.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:33,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.96 ms. Allocated memory is still 88.1 MB. Free memory was 53.8 MB in the beginning and 49.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:33,892 INFO L168 Benchmark]: Boogie Preprocessor took 58.80 ms. Allocated memory is still 88.1 MB. Free memory was 49.7 MB in the beginning and 46.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:33,893 INFO L168 Benchmark]: RCFGBuilder took 1424.66 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 46.8 MB in the beginning and 67.1 MB in the end (delta: -20.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:33,893 INFO L168 Benchmark]: TraceAbstraction took 24522.88 ms. Allocated memory was 109.1 MB in the beginning and 337.6 MB in the end (delta: 228.6 MB). Free memory was 66.4 MB in the beginning and 201.3 MB in the end (delta: -134.9 MB). Peak memory consumption was 191.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:33,894 INFO L168 Benchmark]: Witness Printer took 150.37 ms. Allocated memory is still 337.6 MB. Free memory was 201.3 MB in the beginning and 189.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:33,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 88.1 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 607.01 ms. Allocated memory is still 88.1 MB. Free memory was 55.5 MB in the beginning and 53.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.96 ms. Allocated memory is still 88.1 MB. Free memory was 53.8 MB in the beginning and 49.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.80 ms. Allocated memory is still 88.1 MB. Free memory was 49.7 MB in the beginning and 46.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1424.66 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 46.8 MB in the beginning and 67.1 MB in the end (delta: -20.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24522.88 ms. Allocated memory was 109.1 MB in the beginning and 337.6 MB in the end (delta: 228.6 MB). Free memory was 66.4 MB in the beginning and 201.3 MB in the end (delta: -134.9 MB). Peak memory consumption was 191.1 MB. Max. memory is 16.1 GB. * Witness Printer took 150.37 ms. Allocated memory is still 337.6 MB. Free memory was 201.3 MB in the beginning and 189.7 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: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: ((((((tmp == 0 && 1 == systemActive) && tmp == 0) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: 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: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: ((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: 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) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: (((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= \result) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 634]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && 2 <= \result) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && 2 <= tmp) && tmp == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: (((((((tmp___0 == 0 && tmp == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 138 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.0s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 17.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1946 SDtfs, 2841 SDslu, 3298 SDs, 0 SdLazy, 463 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s 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, 2583 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 215 NumberOfFragments, 601 HoareAnnotationTreeSize, 55 FomulaSimplifications, 20504852 FormulaSimplificationTreeSizeReduction, 5.0s HoareSimplificationTime, 55 FomulaSimplificationsInter, 4158415 FormulaSimplificationTreeSizeReductionInter, 12.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 61794 SizeOfPredicates, 8 NumberOfNonLiveVariables, 941 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 223/231 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...