./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 819c3ebf0e51053d89fb24b2dea5d171f2fed0d0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 819c3ebf0e51053d89fb24b2dea5d171f2fed0d0 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:20:55,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:20:55,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:20:55,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:20:55,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:20:55,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:20:55,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:20:55,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:20:55,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:20:55,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:20:55,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:20:55,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:20:55,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:20:55,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:20:55,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:20:55,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:20:55,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:20:55,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:20:55,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:20:55,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:20:55,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:20:55,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:20:55,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:20:55,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:20:55,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:20:55,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:20:55,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:20:55,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:20:55,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:20:55,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:20:55,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:20:55,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:20:55,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:20:55,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:20:55,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:20:55,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:20:55,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:20:55,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:20:55,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:20:55,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:20:55,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:20:55,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:20:55,548 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:20:55,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:20:55,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:20:55,549 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:20:55,549 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:20:55,549 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:20:55,549 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:20:55,550 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:20:55,550 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:20:55,550 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:20:55,550 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:20:55,550 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:20:55,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:20:55,551 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:20:55,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:20:55,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:20:55,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:20:55,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:20:55,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:20:55,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:20:55,554 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:20:55,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:20:55,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:20:55,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:20:55,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:20:55,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:20:55,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:20:55,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:55,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:20:55,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:20:55,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:20:55,556 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:20:55,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:20:55,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:20:55,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:20:55,556 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 819c3ebf0e51053d89fb24b2dea5d171f2fed0d0 [2019-10-22 11:20:55,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:20:55,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:20:55,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:20:55,596 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:20:55,597 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:20:55,599 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2019-10-22 11:20:55,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data/705778ce1/4f307aed02cd46d2a434bf56000b196d/FLAG609f25951 [2019-10-22 11:20:56,119 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:20:56,120 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2019-10-22 11:20:56,134 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data/705778ce1/4f307aed02cd46d2a434bf56000b196d/FLAG609f25951 [2019-10-22 11:20:56,152 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data/705778ce1/4f307aed02cd46d2a434bf56000b196d [2019-10-22 11:20:56,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:20:56,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:20:56,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:56,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:20:56,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:20:56,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30031fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56, skipping insertion in model container [2019-10-22 11:20:56,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,169 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:20:56,200 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:20:56,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:56,535 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:20:56,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:56,647 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:20:56,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56 WrapperNode [2019-10-22 11:20:56,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:56,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:56,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:20:56,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:20:56,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:56,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:20:56,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:20:56,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:20:56,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:20:56,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:20:56,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:20:56,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:20:56,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/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 [2019-10-22 11:20:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:20:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:20:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:20:56,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:20:57,524 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:20:57,524 INFO L284 CfgBuilder]: Removed 110 assume(true) statements. [2019-10-22 11:20:57,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:57 BoogieIcfgContainer [2019-10-22 11:20:57,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:20:57,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:20:57,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:20:57,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:20:57,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:20:56" (1/3) ... [2019-10-22 11:20:57,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b86802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:57, skipping insertion in model container [2019-10-22 11:20:57,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (2/3) ... [2019-10-22 11:20:57,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b86802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:57, skipping insertion in model container [2019-10-22 11:20:57,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:57" (3/3) ... [2019-10-22 11:20:57,533 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2019-10-22 11:20:57,543 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:20:57,552 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:20:57,561 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:20:57,585 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:20:57,585 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:20:57,585 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:20:57,585 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:20:57,586 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:20:57,586 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:20:57,586 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:20:57,586 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:20:57,600 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-10-22 11:20:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:20:57,606 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:57,607 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:57,609 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:57,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:57,613 INFO L82 PathProgramCache]: Analyzing trace with hash -679137529, now seen corresponding path program 1 times [2019-10-22 11:20:57,619 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:57,619 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585817794] [2019-10-22 11:20:57,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:57,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585817794] [2019-10-22 11:20:57,838 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:57,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:57,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443990733] [2019-10-22 11:20:57,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:20:57,847 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:57,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:20:57,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:20:57,864 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2019-10-22 11:20:57,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:57,897 INFO L93 Difference]: Finished difference Result 167 states and 250 transitions. [2019-10-22 11:20:57,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:20:57,899 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:20:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:57,911 INFO L225 Difference]: With dead ends: 167 [2019-10-22 11:20:57,911 INFO L226 Difference]: Without dead ends: 83 [2019-10-22 11:20:57,914 INFO L600 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 [2019-10-22 11:20:57,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-10-22 11:20:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-10-22 11:20:57,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-10-22 11:20:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-10-22 11:20:57,960 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 19 [2019-10-22 11:20:57,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:57,961 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-10-22 11:20:57,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:20:57,961 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2019-10-22 11:20:57,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:20:57,962 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:57,962 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:57,962 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:57,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:57,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1126882024, now seen corresponding path program 1 times [2019-10-22 11:20:57,963 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:57,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660920275] [2019-10-22 11:20:57,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660920275] [2019-10-22 11:20:58,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,073 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:20:58,073 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085491611] [2019-10-22 11:20:58,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:58,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:58,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:58,076 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2019-10-22 11:20:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:58,088 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2019-10-22 11:20:58,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:58,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-22 11:20:58,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:58,090 INFO L225 Difference]: With dead ends: 83 [2019-10-22 11:20:58,090 INFO L226 Difference]: Without dead ends: 38 [2019-10-22 11:20:58,091 INFO L600 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 [2019-10-22 11:20:58,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-22 11:20:58,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-10-22 11:20:58,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-22 11:20:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2019-10-22 11:20:58,102 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 20 [2019-10-22 11:20:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:58,103 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2019-10-22 11:20:58,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:58,103 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2019-10-22 11:20:58,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:20:58,104 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,104 INFO L380 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] [2019-10-22 11:20:58,109 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,110 INFO L82 PathProgramCache]: Analyzing trace with hash -2132610152, now seen corresponding path program 1 times [2019-10-22 11:20:58,110 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,110 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140821088] [2019-10-22 11:20:58,110 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140821088] [2019-10-22 11:20:58,236 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,236 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:58,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012761064] [2019-10-22 11:20:58,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:58,237 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:58,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:58,237 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand 3 states. [2019-10-22 11:20:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:58,251 INFO L93 Difference]: Finished difference Result 69 states and 99 transitions. [2019-10-22 11:20:58,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:58,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:20:58,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:58,252 INFO L225 Difference]: With dead ends: 69 [2019-10-22 11:20:58,252 INFO L226 Difference]: Without dead ends: 38 [2019-10-22 11:20:58,253 INFO L600 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 [2019-10-22 11:20:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-22 11:20:58,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-10-22 11:20:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-22 11:20:58,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2019-10-22 11:20:58,257 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 26 [2019-10-22 11:20:58,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:58,259 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2019-10-22 11:20:58,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2019-10-22 11:20:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:20:58,260 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,260 INFO L380 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] [2019-10-22 11:20:58,260 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1540100165, now seen corresponding path program 1 times [2019-10-22 11:20:58,261 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,261 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494351916] [2019-10-22 11:20:58,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494351916] [2019-10-22 11:20:58,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:58,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488643408] [2019-10-22 11:20:58,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:58,364 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:58,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:58,364 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand 3 states. [2019-10-22 11:20:58,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:58,423 INFO L93 Difference]: Finished difference Result 93 states and 131 transitions. [2019-10-22 11:20:58,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:58,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-22 11:20:58,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:58,425 INFO L225 Difference]: With dead ends: 93 [2019-10-22 11:20:58,425 INFO L226 Difference]: Without dead ends: 62 [2019-10-22 11:20:58,426 INFO L600 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 [2019-10-22 11:20:58,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-10-22 11:20:58,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2019-10-22 11:20:58,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-10-22 11:20:58,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2019-10-22 11:20:58,437 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 27 [2019-10-22 11:20:58,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:58,440 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2019-10-22 11:20:58,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:58,441 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2019-10-22 11:20:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:20:58,442 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,443 INFO L380 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] [2019-10-22 11:20:58,443 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1679133674, now seen corresponding path program 1 times [2019-10-22 11:20:58,444 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,444 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038598711] [2019-10-22 11:20:58,444 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038598711] [2019-10-22 11:20:58,547 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,547 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:20:58,547 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854813144] [2019-10-22 11:20:58,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:58,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:58,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:58,548 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand 5 states. [2019-10-22 11:20:58,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:58,659 INFO L93 Difference]: Finished difference Result 157 states and 217 transitions. [2019-10-22 11:20:58,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:20:58,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 11:20:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:58,662 INFO L225 Difference]: With dead ends: 157 [2019-10-22 11:20:58,662 INFO L226 Difference]: Without dead ends: 104 [2019-10-22 11:20:58,662 INFO L600 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 [2019-10-22 11:20:58,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-10-22 11:20:58,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 63. [2019-10-22 11:20:58,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-10-22 11:20:58,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2019-10-22 11:20:58,674 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 33 [2019-10-22 11:20:58,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:58,675 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2019-10-22 11:20:58,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2019-10-22 11:20:58,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:20:58,677 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,677 INFO L380 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] [2019-10-22 11:20:58,678 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1682369913, now seen corresponding path program 1 times [2019-10-22 11:20:58,678 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,678 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293823793] [2019-10-22 11:20:58,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293823793] [2019-10-22 11:20:58,753 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:20:58,753 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42164158] [2019-10-22 11:20:58,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:58,754 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:58,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:58,755 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand 5 states. [2019-10-22 11:20:58,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:58,873 INFO L93 Difference]: Finished difference Result 216 states and 299 transitions. [2019-10-22 11:20:58,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:20:58,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 11:20:58,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:58,876 INFO L225 Difference]: With dead ends: 216 [2019-10-22 11:20:58,876 INFO L226 Difference]: Without dead ends: 160 [2019-10-22 11:20:58,877 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:20:58,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-10-22 11:20:58,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 62. [2019-10-22 11:20:58,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-10-22 11:20:58,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2019-10-22 11:20:58,887 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 33 [2019-10-22 11:20:58,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:58,888 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2019-10-22 11:20:58,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:58,888 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2019-10-22 11:20:58,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:20:58,889 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,889 INFO L380 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] [2019-10-22 11:20:58,889 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1914769044, now seen corresponding path program 1 times [2019-10-22 11:20:58,890 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,890 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280823599] [2019-10-22 11:20:58,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280823599] [2019-10-22 11:20:58,947 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,947 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:20:58,947 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575865294] [2019-10-22 11:20:58,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:58,948 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:58,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:58,949 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand 5 states. [2019-10-22 11:20:59,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,009 INFO L93 Difference]: Finished difference Result 164 states and 221 transitions. [2019-10-22 11:20:59,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:20:59,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 11:20:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,011 INFO L225 Difference]: With dead ends: 164 [2019-10-22 11:20:59,011 INFO L226 Difference]: Without dead ends: 109 [2019-10-22 11:20:59,011 INFO L600 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 [2019-10-22 11:20:59,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-22 11:20:59,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 64. [2019-10-22 11:20:59,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-10-22 11:20:59,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2019-10-22 11:20:59,020 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 33 [2019-10-22 11:20:59,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,021 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2019-10-22 11:20:59,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:59,021 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2019-10-22 11:20:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:20:59,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,022 INFO L380 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] [2019-10-22 11:20:59,023 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1793392238, now seen corresponding path program 1 times [2019-10-22 11:20:59,023 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,024 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857152085] [2019-10-22 11:20:59,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857152085] [2019-10-22 11:20:59,069 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,069 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:59,069 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572966129] [2019-10-22 11:20:59,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:59,070 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:59,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,070 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand 3 states. [2019-10-22 11:20:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,103 INFO L93 Difference]: Finished difference Result 148 states and 198 transitions. [2019-10-22 11:20:59,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:59,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 11:20:59,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,105 INFO L225 Difference]: With dead ends: 148 [2019-10-22 11:20:59,105 INFO L226 Difference]: Without dead ends: 91 [2019-10-22 11:20:59,106 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-10-22 11:20:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-10-22 11:20:59,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-10-22 11:20:59,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 118 transitions. [2019-10-22 11:20:59,119 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 118 transitions. Word has length 33 [2019-10-22 11:20:59,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,119 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 118 transitions. [2019-10-22 11:20:59,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:59,119 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2019-10-22 11:20:59,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:20:59,121 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,121 INFO L380 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] [2019-10-22 11:20:59,121 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,122 INFO L82 PathProgramCache]: Analyzing trace with hash -606942930, now seen corresponding path program 1 times [2019-10-22 11:20:59,123 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098530873] [2019-10-22 11:20:59,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,225 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098530873] [2019-10-22 11:20:59,225 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,226 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:20:59,226 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774139259] [2019-10-22 11:20:59,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:20:59,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:20:59,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:20:59,228 INFO L87 Difference]: Start difference. First operand 91 states and 118 transitions. Second operand 6 states. [2019-10-22 11:20:59,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,477 INFO L93 Difference]: Finished difference Result 327 states and 441 transitions. [2019-10-22 11:20:59,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:20:59,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-10-22 11:20:59,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,479 INFO L225 Difference]: With dead ends: 327 [2019-10-22 11:20:59,479 INFO L226 Difference]: Without dead ends: 270 [2019-10-22 11:20:59,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:20:59,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2019-10-22 11:20:59,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 132. [2019-10-22 11:20:59,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-22 11:20:59,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 170 transitions. [2019-10-22 11:20:59,506 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 170 transitions. Word has length 34 [2019-10-22 11:20:59,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,508 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 170 transitions. [2019-10-22 11:20:59,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:20:59,508 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 170 transitions. [2019-10-22 11:20:59,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:20:59,509 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,509 INFO L380 BasicCegarLoop]: trace histogram [2, 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] [2019-10-22 11:20:59,510 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,510 INFO L82 PathProgramCache]: Analyzing trace with hash -242371192, now seen corresponding path program 1 times [2019-10-22 11:20:59,510 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438148360] [2019-10-22 11:20:59,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,511 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,585 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,585 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438148360] [2019-10-22 11:20:59,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250230208] [2019-10-22 11:20:59,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/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 [2019-10-22 11:20:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:20:59,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:20:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,780 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:20:59,814 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [154140063] [2019-10-22 11:20:59,820 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 52 [2019-10-22 11:20:59,872 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:20:59,872 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:21:00,299 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:00,300 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:21:00,304 INFO L168 Benchmark]: Toolchain (without parser) took 4148.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.2 MB in the beginning and 1.0 GB in the end (delta: -61.4 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,304 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:00,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,306 INFO L168 Benchmark]: Boogie Preprocessor took 42.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:00,306 INFO L168 Benchmark]: RCFGBuilder took 775.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,307 INFO L168 Benchmark]: TraceAbstraction took 2775.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,309 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 491.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 775.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2775.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:02,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:02,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:02,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:02,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:02,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:02,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:02,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:02,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:02,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:02,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:02,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:02,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:02,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:02,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:02,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:02,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:02,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:02,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:02,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:02,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:02,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:02,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:02,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:02,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:02,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:02,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:02,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:02,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:02,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:02,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:02,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:02,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:02,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:02,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:02,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:02,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:02,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:02,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:02,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:02,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:02,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:02,621 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:02,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:02,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:02,622 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:02,622 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:02,623 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:02,623 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:02,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:02,623 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:02,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:02,624 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:02,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:02,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:02,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:02,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:02,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:02,626 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:02,626 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:02,626 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:02,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:02,626 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:02,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:02,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:02,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:02,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:02,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:02,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:02,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:02,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:02,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:02,629 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:02,629 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:02,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:02,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:02,630 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 819c3ebf0e51053d89fb24b2dea5d171f2fed0d0 [2019-10-22 11:21:02,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:02,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:02,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:02,683 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:02,684 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:02,684 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2019-10-22 11:21:02,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data/1804243e2/4d4778fc23c442a79b8cd96614d9d041/FLAG5e0acc777 [2019-10-22 11:21:03,232 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:03,235 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2019-10-22 11:21:03,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data/1804243e2/4d4778fc23c442a79b8cd96614d9d041/FLAG5e0acc777 [2019-10-22 11:21:03,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/data/1804243e2/4d4778fc23c442a79b8cd96614d9d041 [2019-10-22 11:21:03,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:03,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:03,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:03,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:03,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:03,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:03" (1/1) ... [2019-10-22 11:21:03,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f189c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:03, skipping insertion in model container [2019-10-22 11:21:03,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:03" (1/1) ... [2019-10-22 11:21:03,740 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:03,783 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:04,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:04,265 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:04,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:04,373 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:04,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04 WrapperNode [2019-10-22 11:21:04,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:04,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:04,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:04,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:04,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:04,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:04,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:04,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:04,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:04,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:04,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:04,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:04,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/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 [2019-10-22 11:21:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:21:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:05,515 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:05,516 INFO L284 CfgBuilder]: Removed 110 assume(true) statements. [2019-10-22 11:21:05,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:05 BoogieIcfgContainer [2019-10-22 11:21:05,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:05,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:05,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:05,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:05,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:03" (1/3) ... [2019-10-22 11:21:05,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58915baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:05, skipping insertion in model container [2019-10-22 11:21:05,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (2/3) ... [2019-10-22 11:21:05,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58915baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:05, skipping insertion in model container [2019-10-22 11:21:05,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:05" (3/3) ... [2019-10-22 11:21:05,526 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2019-10-22 11:21:05,537 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:05,545 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:05,557 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:05,584 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:05,585 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:05,585 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:05,585 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:05,587 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:05,587 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:05,588 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:05,588 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:05,604 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-10-22 11:21:05,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:05,611 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:05,613 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:05,615 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:05,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:05,621 INFO L82 PathProgramCache]: Analyzing trace with hash -679137529, now seen corresponding path program 1 times [2019-10-22 11:21:05,634 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:05,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1124050088] [2019-10-22 11:21:05,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:05,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:21:05,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:05,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:05,870 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:05,877 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1124050088] [2019-10-22 11:21:05,878 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:05,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:21:05,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182582648] [2019-10-22 11:21:05,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:05,884 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:05,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:05,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:05,902 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2019-10-22 11:21:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:05,930 INFO L93 Difference]: Finished difference Result 167 states and 250 transitions. [2019-10-22 11:21:05,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:05,931 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:21:05,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:05,944 INFO L225 Difference]: With dead ends: 167 [2019-10-22 11:21:05,945 INFO L226 Difference]: Without dead ends: 83 [2019-10-22 11:21:05,948 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:05,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-10-22 11:21:05,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-10-22 11:21:05,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-10-22 11:21:05,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-10-22 11:21:05,995 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 19 [2019-10-22 11:21:05,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:05,995 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-10-22 11:21:05,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:05,996 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2019-10-22 11:21:05,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:21:05,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:05,997 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:06,198 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,199 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:06,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1126882024, now seen corresponding path program 1 times [2019-10-22 11:21:06,200 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:06,200 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1746798316] [2019-10-22 11:21:06,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:06,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:06,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,411 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,421 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1746798316] [2019-10-22 11:21:06,421 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:06,422 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:06,422 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988648632] [2019-10-22 11:21:06,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:06,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:06,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:06,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:06,425 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 4 states. [2019-10-22 11:21:06,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:06,471 INFO L93 Difference]: Finished difference Result 159 states and 227 transitions. [2019-10-22 11:21:06,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:06,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 11:21:06,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:06,474 INFO L225 Difference]: With dead ends: 159 [2019-10-22 11:21:06,474 INFO L226 Difference]: Without dead ends: 83 [2019-10-22 11:21:06,475 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:06,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-10-22 11:21:06,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-10-22 11:21:06,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-10-22 11:21:06,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 114 transitions. [2019-10-22 11:21:06,488 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 114 transitions. Word has length 20 [2019-10-22 11:21:06,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:06,489 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 114 transitions. [2019-10-22 11:21:06,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions. [2019-10-22 11:21:06,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:21:06,490 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:06,490 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:06,691 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,691 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:06,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:06,692 INFO L82 PathProgramCache]: Analyzing trace with hash 719909570, now seen corresponding path program 1 times [2019-10-22 11:21:06,693 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:06,694 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1027741815] [2019-10-22 11:21:06,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:06,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:06,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,905 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,908 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1027741815] [2019-10-22 11:21:06,909 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:06,909 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:21:06,909 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282546557] [2019-10-22 11:21:06,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:06,914 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:06,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:06,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:06,915 INFO L87 Difference]: Start difference. First operand 83 states and 114 transitions. Second operand 3 states. [2019-10-22 11:21:07,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:07,087 INFO L93 Difference]: Finished difference Result 214 states and 295 transitions. [2019-10-22 11:21:07,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:07,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 11:21:07,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:07,090 INFO L225 Difference]: With dead ends: 214 [2019-10-22 11:21:07,090 INFO L226 Difference]: Without dead ends: 138 [2019-10-22 11:21:07,091 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:07,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-10-22 11:21:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 132. [2019-10-22 11:21:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-22 11:21:07,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 179 transitions. [2019-10-22 11:21:07,114 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 179 transitions. Word has length 21 [2019-10-22 11:21:07,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:07,115 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 179 transitions. [2019-10-22 11:21:07,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:07,115 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 179 transitions. [2019-10-22 11:21:07,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:21:07,116 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:07,116 INFO L380 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] [2019-10-22 11:21:07,316 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,317 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:07,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:07,317 INFO L82 PathProgramCache]: Analyzing trace with hash 926534611, now seen corresponding path program 1 times [2019-10-22 11:21:07,318 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:07,318 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1381644206] [2019-10-22 11:21:07,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:07,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:07,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:07,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:07,524 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:07,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1381644206] [2019-10-22 11:21:07,551 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:07,551 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:21:07,551 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106693327] [2019-10-22 11:21:07,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:07,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:07,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:07,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:07,553 INFO L87 Difference]: Start difference. First operand 132 states and 179 transitions. Second operand 6 states. [2019-10-22 11:21:07,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:07,677 INFO L93 Difference]: Finished difference Result 495 states and 674 transitions. [2019-10-22 11:21:07,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:07,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-10-22 11:21:07,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:07,681 INFO L225 Difference]: With dead ends: 495 [2019-10-22 11:21:07,681 INFO L226 Difference]: Without dead ends: 370 [2019-10-22 11:21:07,682 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:07,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2019-10-22 11:21:07,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 138. [2019-10-22 11:21:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-22 11:21:07,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 185 transitions. [2019-10-22 11:21:07,713 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 185 transitions. Word has length 27 [2019-10-22 11:21:07,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:07,714 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 185 transitions. [2019-10-22 11:21:07,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:07,714 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 185 transitions. [2019-10-22 11:21:07,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:21:07,715 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:07,715 INFO L380 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] [2019-10-22 11:21:07,916 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,917 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:07,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:07,917 INFO L82 PathProgramCache]: Analyzing trace with hash 225470033, now seen corresponding path program 1 times [2019-10-22 11:21:07,918 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:07,918 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [834837209] [2019-10-22 11:21:07,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:08,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:08,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:08,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:08,109 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:08,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:08,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [834837209] [2019-10-22 11:21:08,113 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:08,113 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:08,113 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955323259] [2019-10-22 11:21:08,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:08,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:08,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:08,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:08,117 INFO L87 Difference]: Start difference. First operand 138 states and 185 transitions. Second operand 5 states. [2019-10-22 11:21:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:08,236 INFO L93 Difference]: Finished difference Result 359 states and 473 transitions. [2019-10-22 11:21:08,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:08,236 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:21:08,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:08,238 INFO L225 Difference]: With dead ends: 359 [2019-10-22 11:21:08,238 INFO L226 Difference]: Without dead ends: 228 [2019-10-22 11:21:08,239 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-10-22 11:21:08,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 147. [2019-10-22 11:21:08,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-22 11:21:08,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 194 transitions. [2019-10-22 11:21:08,261 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 194 transitions. Word has length 27 [2019-10-22 11:21:08,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:08,261 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 194 transitions. [2019-10-22 11:21:08,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:08,262 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 194 transitions. [2019-10-22 11:21:08,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:21:08,263 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:08,263 INFO L380 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] [2019-10-22 11:21:08,463 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:08,464 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:08,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1158933742, now seen corresponding path program 1 times [2019-10-22 11:21:08,465 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:08,465 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [639149359] [2019-10-22 11:21:08,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:08,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:08,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:08,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:08,669 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:08,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [639149359] [2019-10-22 11:21:08,692 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:08,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:08,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064934614] [2019-10-22 11:21:08,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:08,693 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:08,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:08,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:08,694 INFO L87 Difference]: Start difference. First operand 147 states and 194 transitions. Second operand 5 states. [2019-10-22 11:21:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,071 INFO L93 Difference]: Finished difference Result 528 states and 689 transitions. [2019-10-22 11:21:09,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:09,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:21:09,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,073 INFO L225 Difference]: With dead ends: 528 [2019-10-22 11:21:09,073 INFO L226 Difference]: Without dead ends: 388 [2019-10-22 11:21:09,074 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:09,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2019-10-22 11:21:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 144. [2019-10-22 11:21:09,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-22 11:21:09,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 185 transitions. [2019-10-22 11:21:09,105 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 185 transitions. Word has length 27 [2019-10-22 11:21:09,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,106 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 185 transitions. [2019-10-22 11:21:09,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:09,106 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 185 transitions. [2019-10-22 11:21:09,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:21:09,109 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:09,110 INFO L380 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] [2019-10-22 11:21:09,310 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:09,311 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:09,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:09,311 INFO L82 PathProgramCache]: Analyzing trace with hash 339728597, now seen corresponding path program 1 times [2019-10-22 11:21:09,311 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:09,311 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [926847754] [2019-10-22 11:21:09,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:09,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:09,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:09,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:09,574 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:09,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:09,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [926847754] [2019-10-22 11:21:09,585 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:09,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:21:09,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210754122] [2019-10-22 11:21:09,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:09,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:09,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:09,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:09,586 INFO L87 Difference]: Start difference. First operand 144 states and 185 transitions. Second operand 4 states. [2019-10-22 11:21:09,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,596 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2019-10-22 11:21:09,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:09,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2019-10-22 11:21:09,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,597 INFO L225 Difference]: With dead ends: 144 [2019-10-22 11:21:09,597 INFO L226 Difference]: Without dead ends: 64 [2019-10-22 11:21:09,598 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:09,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-10-22 11:21:09,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-10-22 11:21:09,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-10-22 11:21:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2019-10-22 11:21:09,606 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 27 [2019-10-22 11:21:09,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,606 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2019-10-22 11:21:09,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:09,607 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2019-10-22 11:21:09,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:09,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:09,608 INFO L380 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] [2019-10-22 11:21:09,808 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:09,808 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:09,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1793392238, now seen corresponding path program 1 times [2019-10-22 11:21:09,809 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:09,809 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1967463790] [2019-10-22 11:21:09,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:10,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:10,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:10,057 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:10,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1967463790] [2019-10-22 11:21:10,073 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:10,073 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:10,073 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406798108] [2019-10-22 11:21:10,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:10,074 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:10,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:10,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:10,075 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand 4 states. [2019-10-22 11:21:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:10,136 INFO L93 Difference]: Finished difference Result 198 states and 267 transitions. [2019-10-22 11:21:10,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:21:10,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-10-22 11:21:10,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:10,138 INFO L225 Difference]: With dead ends: 198 [2019-10-22 11:21:10,138 INFO L226 Difference]: Without dead ends: 141 [2019-10-22 11:21:10,139 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:10,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-10-22 11:21:10,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 112. [2019-10-22 11:21:10,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-10-22 11:21:10,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 150 transitions. [2019-10-22 11:21:10,153 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 150 transitions. Word has length 33 [2019-10-22 11:21:10,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:10,154 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 150 transitions. [2019-10-22 11:21:10,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:10,154 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 150 transitions. [2019-10-22 11:21:10,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:10,155 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:10,155 INFO L380 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] [2019-10-22 11:21:10,356 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,357 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:10,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:10,357 INFO L82 PathProgramCache]: Analyzing trace with hash -606942930, now seen corresponding path program 1 times [2019-10-22 11:21:10,357 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:10,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1853039766] [2019-10-22 11:21:10,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:10,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:10,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:10,514 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:10,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:10,519 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1853039766] [2019-10-22 11:21:10,519 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:10,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:10,520 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131322832] [2019-10-22 11:21:10,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:10,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:10,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:10,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:10,521 INFO L87 Difference]: Start difference. First operand 112 states and 150 transitions. Second operand 6 states. [2019-10-22 11:21:10,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:10,830 INFO L93 Difference]: Finished difference Result 521 states and 708 transitions. [2019-10-22 11:21:10,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:21:10,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-10-22 11:21:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:10,833 INFO L225 Difference]: With dead ends: 521 [2019-10-22 11:21:10,833 INFO L226 Difference]: Without dead ends: 416 [2019-10-22 11:21:10,833 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:10,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-10-22 11:21:10,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 208. [2019-10-22 11:21:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2019-10-22 11:21:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 275 transitions. [2019-10-22 11:21:10,862 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 275 transitions. Word has length 34 [2019-10-22 11:21:10,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:10,862 INFO L462 AbstractCegarLoop]: Abstraction has 208 states and 275 transitions. [2019-10-22 11:21:10,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 275 transitions. [2019-10-22 11:21:10,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:21:10,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:10,863 INFO L380 BasicCegarLoop]: trace histogram [2, 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] [2019-10-22 11:21:11,064 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:11,065 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:11,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:11,065 INFO L82 PathProgramCache]: Analyzing trace with hash -242371192, now seen corresponding path program 1 times [2019-10-22 11:21:11,065 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:11,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1341819327] [2019-10-22 11:21:11,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:11,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:11,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,237 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1341819327] [2019-10-22 11:21:11,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380846042] [2019-10-22 11:21:11,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:11,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:11,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,393 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,403 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:21:11,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2019-10-22 11:21:11,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70411563] [2019-10-22 11:21:11,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:11,405 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:11,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:11,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:11,405 INFO L87 Difference]: Start difference. First operand 208 states and 275 transitions. Second operand 8 states. [2019-10-22 11:21:11,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:11,729 INFO L93 Difference]: Finished difference Result 358 states and 481 transitions. [2019-10-22 11:21:11,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:11,730 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2019-10-22 11:21:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:11,731 INFO L225 Difference]: With dead ends: 358 [2019-10-22 11:21:11,731 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:11,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:21:11,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:11,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:11,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:11,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2019-10-22 11:21:11,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:11,733 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:11,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:11,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:11,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:12,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:12,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:12,291 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 36 [2019-10-22 11:21:12,763 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2019-10-22 11:21:13,046 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 25 [2019-10-22 11:21:13,248 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2019-10-22 11:21:13,536 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2019-10-22 11:21:13,645 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2019-10-22 11:21:13,756 INFO L439 ceAbstractionStarter]: At program point L580-3(lines 575 583) the Hoare annotation is: false [2019-10-22 11:21:13,757 INFO L439 ceAbstractionStarter]: At program point L580-4(lines 575 583) the Hoare annotation is: false [2019-10-22 11:21:13,757 INFO L439 ceAbstractionStarter]: At program point L580-5(lines 575 583) the Hoare annotation is: false [2019-10-22 11:21:13,757 INFO L439 ceAbstractionStarter]: At program point L861(lines 856 864) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse6 (= ULTIMATE.start_processEnvironment_~tmp~4 (_ bv0 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse3) (and .cse0 (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3) (and .cse5 .cse1 .cse6 .cse2 .cse3 .cse4))) [2019-10-22 11:21:13,757 INFO L439 ceAbstractionStarter]: At program point L861-1(lines 856 864) the Hoare annotation is: false [2019-10-22 11:21:13,758 INFO L439 ceAbstractionStarter]: At program point L861-2(lines 856 864) the Hoare annotation is: false [2019-10-22 11:21:13,758 INFO L443 ceAbstractionStarter]: For program point L762(lines 762 769) no Hoare annotation was computed. [2019-10-22 11:21:13,758 INFO L446 ceAbstractionStarter]: At program point L762-1(lines 762 769) the Hoare annotation is: true [2019-10-22 11:21:13,758 INFO L443 ceAbstractionStarter]: For program point L531(lines 531 539) no Hoare annotation was computed. [2019-10-22 11:21:13,758 INFO L443 ceAbstractionStarter]: For program point L531-1(lines 531 539) no Hoare annotation was computed. [2019-10-22 11:21:13,758 INFO L443 ceAbstractionStarter]: For program point L531-2(lines 531 539) no Hoare annotation was computed. [2019-10-22 11:21:13,758 INFO L443 ceAbstractionStarter]: For program point L911(lines 911 921) no Hoare annotation was computed. [2019-10-22 11:21:13,758 INFO L443 ceAbstractionStarter]: For program point L911-2(lines 911 921) no Hoare annotation was computed. [2019-10-22 11:21:13,758 INFO L443 ceAbstractionStarter]: For program point L911-4(lines 911 921) no Hoare annotation was computed. [2019-10-22 11:21:13,759 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:13,759 INFO L439 ceAbstractionStarter]: At program point L466(lines 419 467) the Hoare annotation is: false [2019-10-22 11:21:13,759 INFO L443 ceAbstractionStarter]: For program point L912(lines 912 918) no Hoare annotation was computed. [2019-10-22 11:21:13,759 INFO L443 ceAbstractionStarter]: For program point L912-2(lines 912 918) no Hoare annotation was computed. [2019-10-22 11:21:13,759 INFO L443 ceAbstractionStarter]: For program point L780(line 780) no Hoare annotation was computed. [2019-10-22 11:21:13,759 INFO L443 ceAbstractionStarter]: For program point L912-4(lines 912 918) no Hoare annotation was computed. [2019-10-22 11:21:13,759 INFO L443 ceAbstractionStarter]: For program point L780-1(line 780) no Hoare annotation was computed. [2019-10-22 11:21:13,759 INFO L443 ceAbstractionStarter]: For program point L780-2(line 780) no Hoare annotation was computed. [2019-10-22 11:21:13,759 INFO L443 ceAbstractionStarter]: For program point L450(lines 450 461) no Hoare annotation was computed. [2019-10-22 11:21:13,760 INFO L439 ceAbstractionStarter]: At program point L896(lines 495 501) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 .cse1 .cse2 .cse3)) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2 .cse3))) [2019-10-22 11:21:13,760 INFO L439 ceAbstractionStarter]: At program point L896-1(lines 495 501) the Hoare annotation is: false [2019-10-22 11:21:13,760 INFO L439 ceAbstractionStarter]: At program point L896-2(lines 495 501) the Hoare annotation is: false [2019-10-22 11:21:13,760 INFO L439 ceAbstractionStarter]: At program point L665(lines 1 927) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:13,760 INFO L439 ceAbstractionStarter]: At program point L502(lines 502 508) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse5 (= ULTIMATE.start_processEnvironment_~tmp~4 (_ bv0 32))) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse3) (and .cse0 (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3) (and .cse4 .cse1 .cse5 .cse2 .cse3))) [2019-10-22 11:21:13,761 INFO L439 ceAbstractionStarter]: At program point L502-1(lines 502 508) the Hoare annotation is: false [2019-10-22 11:21:13,761 INFO L439 ceAbstractionStarter]: At program point L502-2(lines 502 508) the Hoare annotation is: false [2019-10-22 11:21:13,761 INFO L443 ceAbstractionStarter]: For program point L816(lines 816 820) no Hoare annotation was computed. [2019-10-22 11:21:13,761 INFO L439 ceAbstractionStarter]: At program point L635(lines 620 638) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2) (and .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2))) [2019-10-22 11:21:13,761 INFO L439 ceAbstractionStarter]: At program point L635-1(lines 620 638) the Hoare annotation is: false [2019-10-22 11:21:13,762 INFO L439 ceAbstractionStarter]: At program point L635-2(lines 620 638) the Hoare annotation is: false [2019-10-22 11:21:13,762 INFO L443 ceAbstractionStarter]: For program point L421(lines 420 465) no Hoare annotation was computed. [2019-10-22 11:21:13,762 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:13,762 INFO L443 ceAbstractionStarter]: For program point L422(lines 422 426) no Hoare annotation was computed. [2019-10-22 11:21:13,762 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 780) no Hoare annotation was computed. [2019-10-22 11:21:13,763 INFO L443 ceAbstractionStarter]: For program point L456(lines 456 460) no Hoare annotation was computed. [2019-10-22 11:21:13,763 INFO L443 ceAbstractionStarter]: For program point L456-2(lines 450 461) no Hoare annotation was computed. [2019-10-22 11:21:13,763 INFO L443 ceAbstractionStarter]: For program point L869(lines 869 875) no Hoare annotation was computed. [2019-10-22 11:21:13,763 INFO L443 ceAbstractionStarter]: For program point L869-1(lines 869 875) no Hoare annotation was computed. [2019-10-22 11:21:13,763 INFO L443 ceAbstractionStarter]: For program point L869-2(lines 869 875) no Hoare annotation was computed. [2019-10-22 11:21:13,763 INFO L439 ceAbstractionStarter]: At program point L737(lines 733 739) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:13,763 INFO L443 ceAbstractionStarter]: For program point L440(lines 440 446) no Hoare annotation was computed. [2019-10-22 11:21:13,763 INFO L439 ceAbstractionStarter]: At program point L440-1(lines 440 446) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3) (and (and .cse4 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:21:13,764 INFO L439 ceAbstractionStarter]: At program point L886(lines 881 888) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:13,764 INFO L443 ceAbstractionStarter]: For program point L804(lines 804 808) no Hoare annotation was computed. [2019-10-22 11:21:13,764 INFO L446 ceAbstractionStarter]: At program point L771(lines 752 774) the Hoare annotation is: true [2019-10-22 11:21:13,764 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:13,764 INFO L439 ceAbstractionStarter]: At program point L689-2(lines 689 703) the Hoare annotation is: false [2019-10-22 11:21:13,764 INFO L439 ceAbstractionStarter]: At program point L673(lines 668 676) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:13,764 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 780) no Hoare annotation was computed. [2019-10-22 11:21:13,765 INFO L443 ceAbstractionStarter]: For program point L690(line 690) no Hoare annotation was computed. [2019-10-22 11:21:13,765 INFO L443 ceAbstractionStarter]: For program point L527(lines 527 544) no Hoare annotation was computed. [2019-10-22 11:21:13,765 INFO L443 ceAbstractionStarter]: For program point L527-1(lines 527 544) no Hoare annotation was computed. [2019-10-22 11:21:13,765 INFO L443 ceAbstractionStarter]: For program point L527-2(lines 527 544) no Hoare annotation was computed. [2019-10-22 11:21:13,765 INFO L443 ceAbstractionStarter]: For program point L907(lines 907 924) no Hoare annotation was computed. [2019-10-22 11:21:13,766 INFO L439 ceAbstractionStarter]: At program point L874(lines 865 878) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2) (and (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:21:13,766 INFO L439 ceAbstractionStarter]: At program point L907-1(lines 1 927) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse6 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~7)) (.cse5 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3) (and (and .cse6 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5))) [2019-10-22 11:21:13,766 INFO L439 ceAbstractionStarter]: At program point L874-1(lines 865 878) the Hoare annotation is: false [2019-10-22 11:21:13,766 INFO L443 ceAbstractionStarter]: For program point L907-2(lines 907 924) no Hoare annotation was computed. [2019-10-22 11:21:13,766 INFO L439 ceAbstractionStarter]: At program point L907-3(lines 1 927) the Hoare annotation is: false [2019-10-22 11:21:13,767 INFO L439 ceAbstractionStarter]: At program point L874-2(lines 865 878) the Hoare annotation is: false [2019-10-22 11:21:13,767 INFO L443 ceAbstractionStarter]: For program point L907-4(lines 907 924) no Hoare annotation was computed. [2019-10-22 11:21:13,767 INFO L439 ceAbstractionStarter]: At program point L907-5(lines 1 927) the Hoare annotation is: false [2019-10-22 11:21:13,767 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 780) no Hoare annotation was computed. [2019-10-22 11:21:13,767 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:21:13,767 INFO L443 ceAbstractionStarter]: For program point L792(lines 792 796) no Hoare annotation was computed. [2019-10-22 11:21:13,767 INFO L443 ceAbstractionStarter]: For program point L792-3(lines 792 796) no Hoare annotation was computed. [2019-10-22 11:21:13,767 INFO L443 ceAbstractionStarter]: For program point L693(lines 693 697) no Hoare annotation was computed. [2019-10-22 11:21:13,767 INFO L443 ceAbstractionStarter]: For program point L693-1(lines 693 697) no Hoare annotation was computed. [2019-10-22 11:21:13,768 INFO L443 ceAbstractionStarter]: For program point L792-6(lines 792 796) no Hoare annotation was computed. [2019-10-22 11:21:13,768 INFO L439 ceAbstractionStarter]: At program point L495(lines 491 513) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse1 .cse2) (and (and .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:21:13,768 INFO L439 ceAbstractionStarter]: At program point L495-1(lines 491 513) the Hoare annotation is: false [2019-10-22 11:21:13,768 INFO L439 ceAbstractionStarter]: At program point L495-2(lines 491 513) the Hoare annotation is: false [2019-10-22 11:21:13,768 INFO L443 ceAbstractionStarter]: For program point L430(lines 430 436) no Hoare annotation was computed. [2019-10-22 11:21:13,768 INFO L439 ceAbstractionStarter]: At program point L430-1(lines 430 436) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse0 (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3) (and (and .cse4 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:21:13,769 INFO L443 ceAbstractionStarter]: For program point L629(lines 629 633) no Hoare annotation was computed. [2019-10-22 11:21:13,769 INFO L443 ceAbstractionStarter]: For program point L629-2(lines 629 633) no Hoare annotation was computed. [2019-10-22 11:21:13,769 INFO L443 ceAbstractionStarter]: For program point L629-3(lines 629 633) no Hoare annotation was computed. [2019-10-22 11:21:13,769 INFO L443 ceAbstractionStarter]: For program point L629-5(lines 629 633) no Hoare annotation was computed. [2019-10-22 11:21:13,769 INFO L443 ceAbstractionStarter]: For program point L629-6(lines 629 633) no Hoare annotation was computed. [2019-10-22 11:21:13,769 INFO L443 ceAbstractionStarter]: For program point L629-8(lines 629 633) no Hoare annotation was computed. [2019-10-22 11:21:13,770 INFO L439 ceAbstractionStarter]: At program point L580(lines 575 583) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse4 (= (_ bv1 32) ~pumpRunning~0)) (.cse5 (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse6 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 .cse1 .cse2 .cse3)) (and .cse4 (= (_ bv1 32) ~switchedOnBeforeTS~0) .cse5 .cse2 .cse3) (and .cse0 .cse6 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse2 .cse3))) [2019-10-22 11:21:13,770 INFO L439 ceAbstractionStarter]: At program point L580-1(lines 575 583) the Hoare annotation is: (let ((.cse0 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (_ bv0 32) ~pumpRunning~0) (= ULTIMATE.start_processEnvironment_~tmp~4 (_ bv0 32)) .cse0 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse1) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1))) [2019-10-22 11:21:13,770 INFO L439 ceAbstractionStarter]: At program point L580-2(lines 575 583) the Hoare annotation is: false [2019-10-22 11:21:13,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:13 BoogieIcfgContainer [2019-10-22 11:21:13,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:13,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:13,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:13,798 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:13,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:05" (3/4) ... [2019-10-22 11:21:13,803 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:13,818 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:21:13,819 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:21:13,819 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:21:13,820 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:21:13,820 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:21:13,821 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:21:13,852 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == tmp) && 2bv32 == \result) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == tmp) && 2bv32 == \result) [2019-10-22 11:21:13,852 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:21:13,853 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:21:13,853 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:21:13,853 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:21:13,854 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:21:13,854 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:21:13,854 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) || ((((0bv32 == pumpRunning && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) [2019-10-22 11:21:13,855 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:21:13,855 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:21:13,855 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((((0bv32 == pumpRunning && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:21:13,901 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4f1af728-bf7a-4593-895b-088c7fdf3de6/bin/utaipan/witness.graphml [2019-10-22 11:21:13,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:13,903 INFO L168 Benchmark]: Toolchain (without parser) took 10186.13 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 274.2 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -193.5 MB). Peak memory consumption was 80.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:13,903 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:13,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:13,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:13,904 INFO L168 Benchmark]: Boogie Preprocessor took 46.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:13,904 INFO L168 Benchmark]: RCFGBuilder took 1003.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:13,904 INFO L168 Benchmark]: TraceAbstraction took 8279.42 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 123.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -81.5 MB). Peak memory consumption was 305.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:13,905 INFO L168 Benchmark]: Witness Printer took 103.69 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:13,907 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 652.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1003.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8279.42 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 123.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -81.5 MB). Peak memory consumption was 305.6 MB. Max. memory is 11.5 GB. * Witness Printer took 103.69 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 780]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 780]: 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: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 762]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 752]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 440]: Loop Invariant Derived loop invariant: (((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: (((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 865]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 865]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 856]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) || ((((0bv32 == pumpRunning && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 856]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 856]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 689]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && tmp == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: (((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 733]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((0bv32 == pumpRunning && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && 0bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 865]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == tmp) && 2bv32 == \result) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == tmp) && 2bv32 == \result) - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((((0bv32 == pumpRunning && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Result: SAFE, OverallTime: 8.1s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, HoareTripleCheckerStatistics: 1163 SDtfs, 1516 SDslu, 2175 SDs, 0 SdLazy, 363 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 673 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 800 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 37 PreInvPairs, 98 NumberOfFragments, 745 HoareAnnotationTreeSize, 37 FomulaSimplifications, 31546 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 37 FomulaSimplificationsInter, 644 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 652 ConstructedInterpolants, 0 QuantifiedInterpolants, 46156 SizeOfPredicates, 25 NumberOfNonLiveVariables, 2156 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 22 InterpolantComputations, 18 PerfectInterpolantSequences, 52/64 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...