./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.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_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 77b70849cb3dcecd37b0edacca9651109dbc42ac .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 77b70849cb3dcecd37b0edacca9651109dbc42ac .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:24:43,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:43,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:43,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:43,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:43,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:43,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:43,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:43,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:43,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:43,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:43,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:43,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:43,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:43,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:43,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:43,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:43,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:43,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:43,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:43,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:43,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:43,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:43,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:43,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:43,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:43,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:43,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:43,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:43,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:43,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:43,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:43,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:43,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:43,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:43,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:43,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:43,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:43,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:43,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:43,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:43,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:24:43,577 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:43,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:43,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:43,578 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:43,578 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:43,578 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:43,579 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:24:43,579 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:43,579 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:43,579 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:24:43,579 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:24:43,579 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:43,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:43,580 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:43,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:43,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:43,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:43,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:43,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:43,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:43,581 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:43,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:43,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:43,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:43,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:43,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:43,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:43,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:43,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:43,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:43,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:43,587 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:24:43,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:24:43,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:43,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:43,588 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_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 -> 77b70849cb3dcecd37b0edacca9651109dbc42ac [2019-10-22 11:24:43,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:43,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:43,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:43,647 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:43,647 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:43,648 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2019-10-22 11:24:43,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data/02e2bee80/9e1542bbbd834f079bc71c37365d94d0/FLAGca70200ce [2019-10-22 11:24:44,167 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:44,168 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2019-10-22 11:24:44,184 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data/02e2bee80/9e1542bbbd834f079bc71c37365d94d0/FLAGca70200ce [2019-10-22 11:24:44,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data/02e2bee80/9e1542bbbd834f079bc71c37365d94d0 [2019-10-22 11:24:44,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:44,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:44,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:44,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:44,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:44,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:44" (1/1) ... [2019-10-22 11:24:44,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dde477f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:44, skipping insertion in model container [2019-10-22 11:24:44,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:44" (1/1) ... [2019-10-22 11:24:44,688 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:44,732 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:45,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:45,215 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:45,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:45,326 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:45,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45 WrapperNode [2019-10-22 11:24:45,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:45,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:45,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:45,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:45,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... [2019-10-22 11:24:45,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... [2019-10-22 11:24:45,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:45,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:45,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:45,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:45,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... [2019-10-22 11:24:45,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... [2019-10-22 11:24:45,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... [2019-10-22 11:24:45,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... [2019-10-22 11:24:45,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... [2019-10-22 11:24:45,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... [2019-10-22 11:24:45,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... [2019-10-22 11:24:45,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:45,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:45,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:45,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:45,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:24:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:46,365 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:46,365 INFO L284 CfgBuilder]: Removed 132 assume(true) statements. [2019-10-22 11:24:46,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:46 BoogieIcfgContainer [2019-10-22 11:24:46,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:46,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:46,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:46,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:46,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:44" (1/3) ... [2019-10-22 11:24:46,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376ac14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:46, skipping insertion in model container [2019-10-22 11:24:46,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:45" (2/3) ... [2019-10-22 11:24:46,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376ac14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:46, skipping insertion in model container [2019-10-22 11:24:46,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:46" (3/3) ... [2019-10-22 11:24:46,375 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2019-10-22 11:24:46,386 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:46,396 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:24:46,408 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:24:46,446 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:46,446 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:46,446 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:46,447 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:46,447 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:46,447 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:46,447 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:46,447 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:46,469 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2019-10-22 11:24:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:24:46,477 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:46,478 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 11:24:46,480 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:46,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:46,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2684768, now seen corresponding path program 1 times [2019-10-22 11:24:46,495 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:46,495 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687593145] [2019-10-22 11:24:46,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:46,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:46,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:46,759 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 11:24:46,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687593145] [2019-10-22 11:24:46,761 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:46,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:46,761 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228520574] [2019-10-22 11:24:46,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:24:46,768 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:46,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:24:46,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:24:46,781 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2019-10-22 11:24:46,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:46,810 INFO L93 Difference]: Finished difference Result 189 states and 280 transitions. [2019-10-22 11:24:46,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:24:46,811 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:24:46,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:46,824 INFO L225 Difference]: With dead ends: 189 [2019-10-22 11:24:46,824 INFO L226 Difference]: Without dead ends: 94 [2019-10-22 11:24:46,827 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 11:24:46,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-10-22 11:24:46,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-10-22 11:24:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-10-22 11:24:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2019-10-22 11:24:46,873 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 19 [2019-10-22 11:24:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:46,873 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2019-10-22 11:24:46,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:24:46,874 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2019-10-22 11:24:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:24:46,875 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:46,875 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 11:24:46,875 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:46,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:46,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1024617476, now seen corresponding path program 1 times [2019-10-22 11:24:46,876 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:46,876 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576805353] [2019-10-22 11:24:46,877 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:46,877 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:46,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:46,962 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 11:24:46,963 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576805353] [2019-10-22 11:24:46,963 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:46,963 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:24:46,963 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886360180] [2019-10-22 11:24:46,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:46,965 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:46,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:46,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:46,966 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand 3 states. [2019-10-22 11:24:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:46,978 INFO L93 Difference]: Finished difference Result 94 states and 132 transitions. [2019-10-22 11:24:46,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:46,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-22 11:24:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:46,980 INFO L225 Difference]: With dead ends: 94 [2019-10-22 11:24:46,980 INFO L226 Difference]: Without dead ends: 43 [2019-10-22 11:24:46,981 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 11:24:46,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-22 11:24:46,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-10-22 11:24:46,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-22 11:24:46,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 60 transitions. [2019-10-22 11:24:46,987 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 60 transitions. Word has length 20 [2019-10-22 11:24:46,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:46,987 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 60 transitions. [2019-10-22 11:24:46,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:46,987 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2019-10-22 11:24:46,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:24:46,988 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:46,988 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 11:24:46,989 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:46,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:46,989 INFO L82 PathProgramCache]: Analyzing trace with hash -322803839, now seen corresponding path program 1 times [2019-10-22 11:24:46,989 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:46,989 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81071204] [2019-10-22 11:24:46,990 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:46,990 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:46,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:47,061 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 11:24:47,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81071204] [2019-10-22 11:24:47,062 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:47,062 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:47,062 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592946128] [2019-10-22 11:24:47,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:47,063 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:47,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:47,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:47,063 INFO L87 Difference]: Start difference. First operand 43 states and 60 transitions. Second operand 3 states. [2019-10-22 11:24:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:47,081 INFO L93 Difference]: Finished difference Result 115 states and 166 transitions. [2019-10-22 11:24:47,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:47,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:24:47,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:47,083 INFO L225 Difference]: With dead ends: 115 [2019-10-22 11:24:47,083 INFO L226 Difference]: Without dead ends: 79 [2019-10-22 11:24:47,084 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 11:24:47,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-10-22 11:24:47,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2019-10-22 11:24:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-10-22 11:24:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 108 transitions. [2019-10-22 11:24:47,100 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 108 transitions. Word has length 26 [2019-10-22 11:24:47,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:47,101 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 108 transitions. [2019-10-22 11:24:47,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:47,101 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 108 transitions. [2019-10-22 11:24:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:24:47,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:47,102 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 11:24:47,103 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:47,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:47,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1431450619, now seen corresponding path program 1 times [2019-10-22 11:24:47,103 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:47,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424874460] [2019-10-22 11:24:47,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:47,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:47,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:47,194 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 11:24:47,194 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424874460] [2019-10-22 11:24:47,194 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:47,195 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:47,195 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672477274] [2019-10-22 11:24:47,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:47,195 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:47,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:47,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:47,196 INFO L87 Difference]: Start difference. First operand 75 states and 108 transitions. Second operand 3 states. [2019-10-22 11:24:47,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:47,233 INFO L93 Difference]: Finished difference Result 190 states and 279 transitions. [2019-10-22 11:24:47,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:47,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-22 11:24:47,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:47,235 INFO L225 Difference]: With dead ends: 190 [2019-10-22 11:24:47,235 INFO L226 Difference]: Without dead ends: 122 [2019-10-22 11:24:47,236 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 11:24:47,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-22 11:24:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2019-10-22 11:24:47,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-10-22 11:24:47,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 172 transitions. [2019-10-22 11:24:47,248 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 172 transitions. Word has length 27 [2019-10-22 11:24:47,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:47,248 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 172 transitions. [2019-10-22 11:24:47,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:47,249 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2019-10-22 11:24:47,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 11:24:47,249 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:47,249 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] [2019-10-22 11:24:47,250 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:47,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:47,250 INFO L82 PathProgramCache]: Analyzing trace with hash -591283254, now seen corresponding path program 1 times [2019-10-22 11:24:47,250 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:47,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945703418] [2019-10-22 11:24:47,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:47,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:47,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:47,351 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 11:24:47,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945703418] [2019-10-22 11:24:47,351 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:47,351 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:47,352 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889924504] [2019-10-22 11:24:47,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:47,352 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:47,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:47,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:47,353 INFO L87 Difference]: Start difference. First operand 120 states and 172 transitions. Second operand 5 states. [2019-10-22 11:24:47,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:47,578 INFO L93 Difference]: Finished difference Result 435 states and 625 transitions. [2019-10-22 11:24:47,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:24:47,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-22 11:24:47,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:47,581 INFO L225 Difference]: With dead ends: 435 [2019-10-22 11:24:47,581 INFO L226 Difference]: Without dead ends: 322 [2019-10-22 11:24:47,582 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 11:24:47,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-10-22 11:24:47,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 118. [2019-10-22 11:24:47,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-22 11:24:47,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 166 transitions. [2019-10-22 11:24:47,613 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 166 transitions. Word has length 29 [2019-10-22 11:24:47,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:47,614 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 166 transitions. [2019-10-22 11:24:47,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 166 transitions. [2019-10-22 11:24:47,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-22 11:24:47,627 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:47,627 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, 1, 1] [2019-10-22 11:24:47,628 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:47,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:47,628 INFO L82 PathProgramCache]: Analyzing trace with hash 644254591, now seen corresponding path program 1 times [2019-10-22 11:24:47,628 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:47,629 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749197100] [2019-10-22 11:24:47,629 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:47,629 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:47,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:47,713 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 11:24:47,713 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749197100] [2019-10-22 11:24:47,714 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:47,714 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:47,714 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933028142] [2019-10-22 11:24:47,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:47,715 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:47,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:47,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:47,715 INFO L87 Difference]: Start difference. First operand 118 states and 166 transitions. Second operand 5 states. [2019-10-22 11:24:47,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:47,798 INFO L93 Difference]: Finished difference Result 321 states and 449 transitions. [2019-10-22 11:24:47,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:47,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-10-22 11:24:47,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:47,803 INFO L225 Difference]: With dead ends: 321 [2019-10-22 11:24:47,803 INFO L226 Difference]: Without dead ends: 210 [2019-10-22 11:24:47,807 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 11:24:47,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2019-10-22 11:24:47,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 124. [2019-10-22 11:24:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-22 11:24:47,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 172 transitions. [2019-10-22 11:24:47,838 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 172 transitions. Word has length 36 [2019-10-22 11:24:47,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:47,838 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 172 transitions. [2019-10-22 11:24:47,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:47,838 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 172 transitions. [2019-10-22 11:24:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-22 11:24:47,839 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:47,840 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, 1, 1] [2019-10-22 11:24:47,840 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:47,840 INFO L82 PathProgramCache]: Analyzing trace with hash -366862659, now seen corresponding path program 1 times [2019-10-22 11:24:47,841 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:47,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76614811] [2019-10-22 11:24:47,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:47,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:47,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:47,940 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 11:24:47,940 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76614811] [2019-10-22 11:24:47,941 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:47,941 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:47,941 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796459793] [2019-10-22 11:24:47,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:47,942 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:47,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:47,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:47,945 INFO L87 Difference]: Start difference. First operand 124 states and 172 transitions. Second operand 5 states. [2019-10-22 11:24:48,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:48,174 INFO L93 Difference]: Finished difference Result 348 states and 476 transitions. [2019-10-22 11:24:48,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:24:48,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-10-22 11:24:48,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:48,177 INFO L225 Difference]: With dead ends: 348 [2019-10-22 11:24:48,177 INFO L226 Difference]: Without dead ends: 231 [2019-10-22 11:24:48,177 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 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 11:24:48,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2019-10-22 11:24:48,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 128. [2019-10-22 11:24:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-22 11:24:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 176 transitions. [2019-10-22 11:24:48,196 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 176 transitions. Word has length 36 [2019-10-22 11:24:48,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:48,197 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 176 transitions. [2019-10-22 11:24:48,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:48,197 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 176 transitions. [2019-10-22 11:24:48,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-22 11:24:48,198 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:48,203 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, 1, 1] [2019-10-22 11:24:48,203 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:48,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:48,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1387931013, now seen corresponding path program 1 times [2019-10-22 11:24:48,204 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:48,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800210312] [2019-10-22 11:24:48,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:48,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:48,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:48,289 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 11:24:48,289 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800210312] [2019-10-22 11:24:48,289 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:48,290 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:48,290 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81223163] [2019-10-22 11:24:48,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:48,290 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:48,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:48,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:48,291 INFO L87 Difference]: Start difference. First operand 128 states and 176 transitions. Second operand 3 states. [2019-10-22 11:24:48,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:48,323 INFO L93 Difference]: Finished difference Result 305 states and 418 transitions. [2019-10-22 11:24:48,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:48,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2019-10-22 11:24:48,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:48,325 INFO L225 Difference]: With dead ends: 305 [2019-10-22 11:24:48,325 INFO L226 Difference]: Without dead ends: 184 [2019-10-22 11:24:48,325 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 11:24:48,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-10-22 11:24:48,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2019-10-22 11:24:48,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-10-22 11:24:48,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 245 transitions. [2019-10-22 11:24:48,351 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 245 transitions. Word has length 36 [2019-10-22 11:24:48,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:48,351 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 245 transitions. [2019-10-22 11:24:48,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:48,351 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 245 transitions. [2019-10-22 11:24:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:24:48,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:48,353 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, 1, 1, 1] [2019-10-22 11:24:48,353 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:48,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:48,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1432557499, now seen corresponding path program 1 times [2019-10-22 11:24:48,353 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:48,353 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987643976] [2019-10-22 11:24:48,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:48,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:48,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:48,441 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 11:24:48,441 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987643976] [2019-10-22 11:24:48,441 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:48,441 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:24:48,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695673508] [2019-10-22 11:24:48,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:48,442 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:48,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:48,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:48,443 INFO L87 Difference]: Start difference. First operand 184 states and 245 transitions. Second operand 6 states. [2019-10-22 11:24:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:48,681 INFO L93 Difference]: Finished difference Result 689 states and 945 transitions. [2019-10-22 11:24:48,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:24:48,682 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-10-22 11:24:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:48,684 INFO L225 Difference]: With dead ends: 689 [2019-10-22 11:24:48,685 INFO L226 Difference]: Without dead ends: 568 [2019-10-22 11:24:48,687 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:24:48,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2019-10-22 11:24:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 269. [2019-10-22 11:24:48,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-10-22 11:24:48,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 354 transitions. [2019-10-22 11:24:48,726 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 354 transitions. Word has length 37 [2019-10-22 11:24:48,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:48,727 INFO L462 AbstractCegarLoop]: Abstraction has 269 states and 354 transitions. [2019-10-22 11:24:48,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:48,727 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 354 transitions. [2019-10-22 11:24:48,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-22 11:24:48,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:48,728 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, 1, 1, 1] [2019-10-22 11:24:48,729 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:48,729 INFO L82 PathProgramCache]: Analyzing trace with hash 329840228, now seen corresponding path program 1 times [2019-10-22 11:24:48,729 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:48,729 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160851427] [2019-10-22 11:24:48,730 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:48,730 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:48,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:48,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160851427] [2019-10-22 11:24:48,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182956293] [2019-10-22 11:24:48,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:48,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:24:48,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:49,047 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 11:24:49,047 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:49,081 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 11:24:49,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1278412379] [2019-10-22 11:24:49,089 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 55 [2019-10-22 11:24:49,139 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:24:49,139 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:24:49,618 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:24:49,618 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 11:24:49,624 INFO L168 Benchmark]: Toolchain (without parser) took 4950.65 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 225.4 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:49,624 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:49,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:49,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.12 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 11:24:49,626 INFO L168 Benchmark]: Boogie Preprocessor took 43.36 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 11:24:49,626 INFO L168 Benchmark]: RCFGBuilder took 928.01 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: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:49,627 INFO L168 Benchmark]: TraceAbstraction took 3253.55 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 83.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -78.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:49,629 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 654.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.12 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. * Boogie Preprocessor took 43.36 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 928.01 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: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3253.55 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 83.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -78.0 MB). Peak memory consumption was 5.4 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 11:24:51,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:51,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:51,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:51,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:51,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:51,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:51,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:51,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:51,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:51,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:51,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:51,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:51,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:51,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:51,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:51,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:51,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:51,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:51,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:51,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:51,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:51,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:51,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:51,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:51,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:51,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:51,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:51,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:51,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:51,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:51,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:51,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:51,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:51,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:51,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:51,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:51,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:51,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:51,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:51,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:51,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:24:51,801 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:51,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:51,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:51,802 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:51,802 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:51,802 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:51,802 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:51,803 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:51,803 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:51,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:51,804 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:51,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:51,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:51,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:51,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:51,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:51,805 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:24:51,805 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:24:51,805 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:51,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:51,805 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:24:51,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:51,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:51,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:51,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:51,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:51,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:51,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:51,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:51,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:51,807 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:24:51,808 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:24:51,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:51,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:51,808 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_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 -> 77b70849cb3dcecd37b0edacca9651109dbc42ac [2019-10-22 11:24:51,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:51,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:51,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:51,854 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:51,855 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:51,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2019-10-22 11:24:51,904 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data/327475b62/1b3d483107754b28b5c7e5fb1c037521/FLAGe42f2bd4d [2019-10-22 11:24:52,364 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:52,371 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2019-10-22 11:24:52,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data/327475b62/1b3d483107754b28b5c7e5fb1c037521/FLAGe42f2bd4d [2019-10-22 11:24:52,880 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/data/327475b62/1b3d483107754b28b5c7e5fb1c037521 [2019-10-22 11:24:52,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:52,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:52,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:52,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:52,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:52,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:52" (1/1) ... [2019-10-22 11:24:52,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf3af26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:52, skipping insertion in model container [2019-10-22 11:24:52,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:52" (1/1) ... [2019-10-22 11:24:52,900 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:52,940 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:53,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:53,424 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:53,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:53,583 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:53,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53 WrapperNode [2019-10-22 11:24:53,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:53,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:53,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:53,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:53,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... [2019-10-22 11:24:53,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... [2019-10-22 11:24:53,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:53,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:53,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:53,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:53,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... [2019-10-22 11:24:53,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... [2019-10-22 11:24:53,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... [2019-10-22 11:24:53,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... [2019-10-22 11:24:53,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... [2019-10-22 11:24:53,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... [2019-10-22 11:24:53,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... [2019-10-22 11:24:53,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:53,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:53,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:53,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:53,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:24:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:53,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:54,720 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:54,720 INFO L284 CfgBuilder]: Removed 132 assume(true) statements. [2019-10-22 11:24:54,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:54 BoogieIcfgContainer [2019-10-22 11:24:54,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:54,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:54,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:54,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:54,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:52" (1/3) ... [2019-10-22 11:24:54,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fde9310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:54, skipping insertion in model container [2019-10-22 11:24:54,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:53" (2/3) ... [2019-10-22 11:24:54,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fde9310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:54, skipping insertion in model container [2019-10-22 11:24:54,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:54" (3/3) ... [2019-10-22 11:24:54,732 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2019-10-22 11:24:54,743 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:54,750 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:24:54,762 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:24:54,788 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:54,788 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:54,788 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:54,788 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:54,789 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:54,789 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:54,789 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:54,789 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:54,805 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2019-10-22 11:24:54,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:24:54,812 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:54,813 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 11:24:54,815 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:54,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:54,821 INFO L82 PathProgramCache]: Analyzing trace with hash -2684768, now seen corresponding path program 1 times [2019-10-22 11:24:54,833 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:54,834 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [53005067] [2019-10-22 11:24:54,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:55,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:24:55,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:55,082 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 11:24:55,083 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:55,089 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 11:24:55,095 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [53005067] [2019-10-22 11:24:55,095 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:55,096 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:24:55,096 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501085613] [2019-10-22 11:24:55,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:24:55,101 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:55,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:24:55,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:24:55,114 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2019-10-22 11:24:55,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:55,143 INFO L93 Difference]: Finished difference Result 189 states and 280 transitions. [2019-10-22 11:24:55,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:24:55,145 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:24:55,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:55,156 INFO L225 Difference]: With dead ends: 189 [2019-10-22 11:24:55,156 INFO L226 Difference]: Without dead ends: 94 [2019-10-22 11:24:55,159 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 11:24:55,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-10-22 11:24:55,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-10-22 11:24:55,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-10-22 11:24:55,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2019-10-22 11:24:55,194 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 19 [2019-10-22 11:24:55,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:55,195 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2019-10-22 11:24:55,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:24:55,195 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2019-10-22 11:24:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:24:55,196 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:55,196 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 11:24:55,397 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:55,397 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:55,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:55,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1024617476, now seen corresponding path program 1 times [2019-10-22 11:24:55,398 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:55,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1893483452] [2019-10-22 11:24:55,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:55,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:24:55,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:55,575 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 11:24:55,575 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:55,585 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 11:24:55,585 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1893483452] [2019-10-22 11:24:55,585 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:55,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:24:55,586 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263234769] [2019-10-22 11:24:55,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:55,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:55,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:55,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:55,589 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand 4 states. [2019-10-22 11:24:55,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:55,686 INFO L93 Difference]: Finished difference Result 325 states and 462 transitions. [2019-10-22 11:24:55,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:24:55,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 11:24:55,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:55,693 INFO L225 Difference]: With dead ends: 325 [2019-10-22 11:24:55,693 INFO L226 Difference]: Without dead ends: 238 [2019-10-22 11:24:55,697 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 11:24:55,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-10-22 11:24:55,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 143. [2019-10-22 11:24:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-10-22 11:24:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 203 transitions. [2019-10-22 11:24:55,735 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 203 transitions. Word has length 20 [2019-10-22 11:24:55,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:55,735 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 203 transitions. [2019-10-22 11:24:55,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:55,736 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 203 transitions. [2019-10-22 11:24:55,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:24:55,737 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:55,737 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 11:24:55,937 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:55,938 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:55,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:55,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1150064450, now seen corresponding path program 1 times [2019-10-22 11:24:55,939 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:55,939 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2085938141] [2019-10-22 11:24:55,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:56,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:24:56,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:56,119 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 11:24:56,120 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:56,122 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 11:24:56,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2085938141] [2019-10-22 11:24:56,124 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:56,124 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:24:56,124 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897151748] [2019-10-22 11:24:56,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:56,125 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:56,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:56,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:56,125 INFO L87 Difference]: Start difference. First operand 143 states and 203 transitions. Second operand 3 states. [2019-10-22 11:24:56,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:56,300 INFO L93 Difference]: Finished difference Result 332 states and 469 transitions. [2019-10-22 11:24:56,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:56,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 11:24:56,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:56,303 INFO L225 Difference]: With dead ends: 332 [2019-10-22 11:24:56,303 INFO L226 Difference]: Without dead ends: 196 [2019-10-22 11:24:56,304 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 11:24:56,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-22 11:24:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 190. [2019-10-22 11:24:56,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-10-22 11:24:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 260 transitions. [2019-10-22 11:24:56,345 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 260 transitions. Word has length 21 [2019-10-22 11:24:56,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:56,346 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 260 transitions. [2019-10-22 11:24:56,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:56,346 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 260 transitions. [2019-10-22 11:24:56,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:24:56,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:56,352 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 11:24:56,553 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:56,554 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:56,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:56,554 INFO L82 PathProgramCache]: Analyzing trace with hash -209946386, now seen corresponding path program 1 times [2019-10-22 11:24:56,555 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:56,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [933698106] [2019-10-22 11:24:56,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:56,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:24:56,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:56,715 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 11:24:56,716 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:56,725 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 11:24:56,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [933698106] [2019-10-22 11:24:56,725 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:56,725 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:24:56,726 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818668925] [2019-10-22 11:24:56,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:56,726 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:56,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:56,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:56,727 INFO L87 Difference]: Start difference. First operand 190 states and 260 transitions. Second operand 5 states. [2019-10-22 11:24:57,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:57,060 INFO L93 Difference]: Finished difference Result 633 states and 858 transitions. [2019-10-22 11:24:57,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:24:57,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:24:57,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:57,063 INFO L225 Difference]: With dead ends: 633 [2019-10-22 11:24:57,063 INFO L226 Difference]: Without dead ends: 450 [2019-10-22 11:24:57,064 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 11:24:57,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-22 11:24:57,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 184. [2019-10-22 11:24:57,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-10-22 11:24:57,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 242 transitions. [2019-10-22 11:24:57,097 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 242 transitions. Word has length 27 [2019-10-22 11:24:57,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:57,097 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 242 transitions. [2019-10-22 11:24:57,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 242 transitions. [2019-10-22 11:24:57,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:24:57,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:57,102 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] [2019-10-22 11:24:57,302 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:57,303 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:57,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:57,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1390425978, now seen corresponding path program 1 times [2019-10-22 11:24:57,304 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:57,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [991863089] [2019-10-22 11:24:57,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:57,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:24:57,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:57,495 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 11:24:57,495 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:57,500 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 11:24:57,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [991863089] [2019-10-22 11:24:57,500 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:57,500 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:24:57,501 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624049760] [2019-10-22 11:24:57,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:57,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:57,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:57,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:57,502 INFO L87 Difference]: Start difference. First operand 184 states and 242 transitions. Second operand 5 states. [2019-10-22 11:24:57,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:57,665 INFO L93 Difference]: Finished difference Result 549 states and 714 transitions. [2019-10-22 11:24:57,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:57,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 11:24:57,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:57,667 INFO L225 Difference]: With dead ends: 549 [2019-10-22 11:24:57,667 INFO L226 Difference]: Without dead ends: 372 [2019-10-22 11:24:57,668 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 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 11:24:57,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-10-22 11:24:57,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 193. [2019-10-22 11:24:57,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-10-22 11:24:57,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 251 transitions. [2019-10-22 11:24:57,701 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 251 transitions. Word has length 30 [2019-10-22 11:24:57,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:57,702 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 251 transitions. [2019-10-22 11:24:57,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:57,702 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 251 transitions. [2019-10-22 11:24:57,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:24:57,705 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:57,705 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] [2019-10-22 11:24:57,907 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:57,908 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:57,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:57,908 INFO L82 PathProgramCache]: Analyzing trace with hash 379308728, now seen corresponding path program 1 times [2019-10-22 11:24:57,909 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:57,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1964558689] [2019-10-22 11:24:57,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:58,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:24:58,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:58,064 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 11:24:58,064 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:58,078 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 11:24:58,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1964558689] [2019-10-22 11:24:58,079 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:58,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:24:58,079 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621315536] [2019-10-22 11:24:58,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:58,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:58,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:58,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:58,080 INFO L87 Difference]: Start difference. First operand 193 states and 251 transitions. Second operand 6 states. [2019-10-22 11:24:58,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:58,187 INFO L93 Difference]: Finished difference Result 576 states and 741 transitions. [2019-10-22 11:24:58,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:58,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-10-22 11:24:58,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:58,189 INFO L225 Difference]: With dead ends: 576 [2019-10-22 11:24:58,189 INFO L226 Difference]: Without dead ends: 390 [2019-10-22 11:24:58,190 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 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 11:24:58,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2019-10-22 11:24:58,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 199. [2019-10-22 11:24:58,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2019-10-22 11:24:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 257 transitions. [2019-10-22 11:24:58,212 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 257 transitions. Word has length 30 [2019-10-22 11:24:58,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:58,213 INFO L462 AbstractCegarLoop]: Abstraction has 199 states and 257 transitions. [2019-10-22 11:24:58,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:58,213 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 257 transitions. [2019-10-22 11:24:58,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:24:58,214 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:58,214 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] [2019-10-22 11:24:58,414 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:58,415 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:58,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:58,415 INFO L82 PathProgramCache]: Analyzing trace with hash -641759626, now seen corresponding path program 1 times [2019-10-22 11:24:58,415 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:58,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1442035117] [2019-10-22 11:24:58,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:58,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:24:58,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:58,692 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 11:24:58,693 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:58,706 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 11:24:58,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1442035117] [2019-10-22 11:24:58,707 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:58,707 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:24:58,707 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899387511] [2019-10-22 11:24:58,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:58,708 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:58,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:58,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:58,708 INFO L87 Difference]: Start difference. First operand 199 states and 257 transitions. Second operand 4 states. [2019-10-22 11:24:58,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:58,723 INFO L93 Difference]: Finished difference Result 199 states and 257 transitions. [2019-10-22 11:24:58,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:58,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-10-22 11:24:58,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:58,725 INFO L225 Difference]: With dead ends: 199 [2019-10-22 11:24:58,725 INFO L226 Difference]: Without dead ends: 90 [2019-10-22 11:24:58,725 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 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 11:24:58,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-10-22 11:24:58,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-10-22 11:24:58,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-10-22 11:24:58,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 121 transitions. [2019-10-22 11:24:58,735 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 121 transitions. Word has length 30 [2019-10-22 11:24:58,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:58,735 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 121 transitions. [2019-10-22 11:24:58,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 121 transitions. [2019-10-22 11:24:58,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-22 11:24:58,736 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:58,736 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, 1, 1] [2019-10-22 11:24:58,936 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:58,937 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:58,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:58,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1387931013, now seen corresponding path program 1 times [2019-10-22 11:24:58,938 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:58,938 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1524739966] [2019-10-22 11:24:58,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:59,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:24:59,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:59,215 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 11:24:59,216 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:59,226 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 11:24:59,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1524739966] [2019-10-22 11:24:59,226 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:59,226 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:24:59,226 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805594115] [2019-10-22 11:24:59,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:59,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:59,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:59,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:59,228 INFO L87 Difference]: Start difference. First operand 90 states and 121 transitions. Second operand 4 states. [2019-10-22 11:24:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:59,280 INFO L93 Difference]: Finished difference Result 295 states and 401 transitions. [2019-10-22 11:24:59,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:24:59,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-10-22 11:24:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:59,282 INFO L225 Difference]: With dead ends: 295 [2019-10-22 11:24:59,282 INFO L226 Difference]: Without dead ends: 212 [2019-10-22 11:24:59,282 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 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 11:24:59,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-10-22 11:24:59,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 161. [2019-10-22 11:24:59,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-10-22 11:24:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 217 transitions. [2019-10-22 11:24:59,303 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 217 transitions. Word has length 36 [2019-10-22 11:24:59,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:59,303 INFO L462 AbstractCegarLoop]: Abstraction has 161 states and 217 transitions. [2019-10-22 11:24:59,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 217 transitions. [2019-10-22 11:24:59,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:24:59,304 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:59,304 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, 1, 1, 1] [2019-10-22 11:24:59,505 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:24:59,506 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:59,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:59,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1432557499, now seen corresponding path program 1 times [2019-10-22 11:24:59,507 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:59,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [902207588] [2019-10-22 11:24:59,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:24:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:59,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:24:59,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:59,665 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 11:24:59,665 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:59,671 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 11:24:59,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [902207588] [2019-10-22 11:24:59,672 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:59,672 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:24:59,672 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566782467] [2019-10-22 11:24:59,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:59,673 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:59,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:59,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:59,675 INFO L87 Difference]: Start difference. First operand 161 states and 217 transitions. Second operand 6 states. [2019-10-22 11:25:00,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:00,131 INFO L93 Difference]: Finished difference Result 800 states and 1093 transitions. [2019-10-22 11:25:00,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:25:00,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-10-22 11:25:00,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:00,135 INFO L225 Difference]: With dead ends: 800 [2019-10-22 11:25:00,135 INFO L226 Difference]: Without dead ends: 646 [2019-10-22 11:25:00,136 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 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 11:25:00,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2019-10-22 11:25:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 304. [2019-10-22 11:25:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-10-22 11:25:00,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 405 transitions. [2019-10-22 11:25:00,177 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 405 transitions. Word has length 37 [2019-10-22 11:25:00,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:00,177 INFO L462 AbstractCegarLoop]: Abstraction has 304 states and 405 transitions. [2019-10-22 11:25:00,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:00,177 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 405 transitions. [2019-10-22 11:25:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-22 11:25:00,179 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:00,179 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, 1, 1, 1] [2019-10-22 11:25:00,379 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:25:00,380 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:00,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:00,380 INFO L82 PathProgramCache]: Analyzing trace with hash 329840228, now seen corresponding path program 1 times [2019-10-22 11:25:00,380 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:25:00,380 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1559779598] [2019-10-22 11:25:00,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:25:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:00,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:25:00,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:00,544 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 11:25:00,544 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:00,576 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 11:25:00,578 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1559779598] [2019-10-22 11:25:00,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332711956] [2019-10-22 11:25:00,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/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 11:25:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:00,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:25:00,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:00,708 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 11:25:00,708 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:00,716 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 11:25:00,716 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:25:00,717 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2019-10-22 11:25:00,717 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656764297] [2019-10-22 11:25:00,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:25:00,717 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:25:00,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:25:00,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:25:00,718 INFO L87 Difference]: Start difference. First operand 304 states and 405 transitions. Second operand 8 states. [2019-10-22 11:25:01,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:01,090 INFO L93 Difference]: Finished difference Result 674 states and 905 transitions. [2019-10-22 11:25:01,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 11:25:01,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2019-10-22 11:25:01,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:01,092 INFO L225 Difference]: With dead ends: 674 [2019-10-22 11:25:01,092 INFO L226 Difference]: Without dead ends: 377 [2019-10-22 11:25:01,093 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:25:01,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-22 11:25:01,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 310. [2019-10-22 11:25:01,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2019-10-22 11:25:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 400 transitions. [2019-10-22 11:25:01,146 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 400 transitions. Word has length 54 [2019-10-22 11:25:01,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:01,146 INFO L462 AbstractCegarLoop]: Abstraction has 310 states and 400 transitions. [2019-10-22 11:25:01,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:25:01,146 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 400 transitions. [2019-10-22 11:25:01,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-22 11:25:01,148 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:01,148 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 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] [2019-10-22 11:25:01,549 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 11:25:01,549 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:01,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:01,549 INFO L82 PathProgramCache]: Analyzing trace with hash 620647972, now seen corresponding path program 1 times [2019-10-22 11:25:01,550 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:25:01,550 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [511167008] [2019-10-22 11:25:01,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:25:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:01,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:25:01,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-10-22 11:25:01,718 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:01,725 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-10-22 11:25:01,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [511167008] [2019-10-22 11:25:01,731 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:01,731 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:25:01,731 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481473178] [2019-10-22 11:25:01,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:01,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:25:01,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:01,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:01,732 INFO L87 Difference]: Start difference. First operand 310 states and 400 transitions. Second operand 3 states. [2019-10-22 11:25:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:01,914 INFO L93 Difference]: Finished difference Result 551 states and 712 transitions. [2019-10-22 11:25:01,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:01,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2019-10-22 11:25:01,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:01,917 INFO L225 Difference]: With dead ends: 551 [2019-10-22 11:25:01,917 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:25:01,918 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 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 11:25:01,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:25:01,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:25:01,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:25:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:25:01,919 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2019-10-22 11:25:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:01,919 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:25:01,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:25:01,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:25:02,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:25:02,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:25:02,390 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 75 [2019-10-22 11:25:03,139 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 24 [2019-10-22 11:25:03,437 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 28 [2019-10-22 11:25:03,622 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 30 [2019-10-22 11:25:03,753 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 26 [2019-10-22 11:25:03,947 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 27 [2019-10-22 11:25:04,196 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 29 [2019-10-22 11:25:04,322 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 30 [2019-10-22 11:25:04,571 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 26 [2019-10-22 11:25:04,743 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 30 [2019-10-22 11:25:04,818 INFO L443 ceAbstractionStarter]: For program point L861(lines 861 867) no Hoare annotation was computed. [2019-10-22 11:25:04,818 INFO L443 ceAbstractionStarter]: For program point L861-1(lines 861 867) no Hoare annotation was computed. [2019-10-22 11:25:04,818 INFO L443 ceAbstractionStarter]: For program point L861-2(lines 861 867) no Hoare annotation was computed. [2019-10-22 11:25:04,818 INFO L443 ceAbstractionStarter]: For program point L498(lines 498 505) no Hoare annotation was computed. [2019-10-22 11:25:04,818 INFO L446 ceAbstractionStarter]: At program point L498-1(lines 498 505) the Hoare annotation is: true [2019-10-22 11:25:04,818 INFO L439 ceAbstractionStarter]: At program point L944(lines 1 964) 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 11:25:04,819 INFO L443 ceAbstractionStarter]: For program point L961(line 961) no Hoare annotation was computed. [2019-10-22 11:25:04,819 INFO L443 ceAbstractionStarter]: For program point L961-1(line 961) no Hoare annotation was computed. [2019-10-22 11:25:04,819 INFO L443 ceAbstractionStarter]: For program point L961-2(line 961) no Hoare annotation was computed. [2019-10-22 11:25:04,819 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:25:04,819 INFO L443 ceAbstractionStarter]: For program point L796(lines 796 800) no Hoare annotation was computed. [2019-10-22 11:25:04,819 INFO L443 ceAbstractionStarter]: For program point L631(lines 631 648) no Hoare annotation was computed. [2019-10-22 11:25:04,819 INFO L443 ceAbstractionStarter]: For program point L631-1(lines 631 648) no Hoare annotation was computed. [2019-10-22 11:25:04,819 INFO L443 ceAbstractionStarter]: For program point L631-2(lines 631 648) no Hoare annotation was computed. [2019-10-22 11:25:04,819 INFO L439 ceAbstractionStarter]: At program point L879(lines 874 881) 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 11:25:04,819 INFO L439 ceAbstractionStarter]: At program point L599(lines 595 617) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (not .cse2))) (let ((.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (and .cse3 .cse0))) (or (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1) (and .cse2 (and .cse3 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse1)) (and (= (_ bv2 32) ~waterLevel~0) .cse1 .cse4) (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse1 .cse4))))) [2019-10-22 11:25:04,820 INFO L439 ceAbstractionStarter]: At program point L599-1(lines 595 617) the Hoare annotation is: false [2019-10-22 11:25:04,820 INFO L443 ceAbstractionStarter]: For program point L533(lines 533 539) no Hoare annotation was computed. [2019-10-22 11:25:04,820 INFO L439 ceAbstractionStarter]: At program point L599-2(lines 595 617) the Hoare annotation is: false [2019-10-22 11:25:04,820 INFO L439 ceAbstractionStarter]: At program point L533-1(lines 533 539) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not .cse2))) (let ((.cse1 (and .cse3 .cse4)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (_ bv2 32) ~waterLevel~0) .cse0 .cse1) (and .cse2 (and .cse3 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0)) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse0))))) [2019-10-22 11:25:04,820 INFO L439 ceAbstractionStarter]: At program point L418-2(lines 418 432) the Hoare annotation is: false [2019-10-22 11:25:04,820 INFO L443 ceAbstractionStarter]: For program point L765(lines 765 771) no Hoare annotation was computed. [2019-10-22 11:25:04,820 INFO L439 ceAbstractionStarter]: At program point L765-1(lines 765 771) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:25:04,820 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-10-22 11:25:04,820 INFO L439 ceAbstractionStarter]: At program point L469(lines 465 471) 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 11:25:04,821 INFO L439 ceAbstractionStarter]: At program point L866(lines 857 870) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2))) [2019-10-22 11:25:04,821 INFO L439 ceAbstractionStarter]: At program point L866-1(lines 857 870) the Hoare annotation is: false [2019-10-22 11:25:04,821 INFO L439 ceAbstractionStarter]: At program point L866-2(lines 857 870) the Hoare annotation is: false [2019-10-22 11:25:04,821 INFO L443 ceAbstractionStarter]: For program point L668(lines 668 674) no Hoare annotation was computed. [2019-10-22 11:25:04,821 INFO L443 ceAbstractionStarter]: For program point L635(lines 635 643) no Hoare annotation was computed. [2019-10-22 11:25:04,821 INFO L443 ceAbstractionStarter]: For program point L635-1(lines 635 643) no Hoare annotation was computed. [2019-10-22 11:25:04,821 INFO L443 ceAbstractionStarter]: For program point L668-2(lines 668 674) no Hoare annotation was computed. [2019-10-22 11:25:04,821 INFO L443 ceAbstractionStarter]: For program point L635-2(lines 635 643) no Hoare annotation was computed. [2019-10-22 11:25:04,821 INFO L443 ceAbstractionStarter]: For program point L668-4(lines 668 674) no Hoare annotation was computed. [2019-10-22 11:25:04,821 INFO L443 ceAbstractionStarter]: For program point L784(lines 784 788) no Hoare annotation was computed. [2019-10-22 11:25:04,821 INFO L443 ceAbstractionStarter]: For program point L751(lines 751 755) no Hoare annotation was computed. [2019-10-22 11:25:04,821 INFO L443 ceAbstractionStarter]: For program point L751-2(lines 751 755) no Hoare annotation was computed. [2019-10-22 11:25:04,822 INFO L443 ceAbstractionStarter]: For program point L784-3(lines 784 788) no Hoare annotation was computed. [2019-10-22 11:25:04,822 INFO L443 ceAbstractionStarter]: For program point L751-3(lines 751 755) no Hoare annotation was computed. [2019-10-22 11:25:04,822 INFO L443 ceAbstractionStarter]: For program point L751-5(lines 751 755) no Hoare annotation was computed. [2019-10-22 11:25:04,822 INFO L443 ceAbstractionStarter]: For program point L784-6(lines 784 788) no Hoare annotation was computed. [2019-10-22 11:25:04,822 INFO L443 ceAbstractionStarter]: For program point L553(lines 553 566) no Hoare annotation was computed. [2019-10-22 11:25:04,822 INFO L443 ceAbstractionStarter]: For program point L751-6(lines 751 755) no Hoare annotation was computed. [2019-10-22 11:25:04,822 INFO L443 ceAbstractionStarter]: For program point L751-8(lines 751 755) no Hoare annotation was computed. [2019-10-22 11:25:04,822 INFO L443 ceAbstractionStarter]: For program point L900(lines 900 917) no Hoare annotation was computed. [2019-10-22 11:25:04,823 INFO L439 ceAbstractionStarter]: At program point L900-1(lines 1 964) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not .cse2))) (let ((.cse1 (and .cse3 .cse4)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8) (= (_ bv2 32) ~waterLevel~0) .cse0 .cse1 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse2 (and .cse3 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0)) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse0))))) [2019-10-22 11:25:04,823 INFO L443 ceAbstractionStarter]: For program point L900-2(lines 900 917) no Hoare annotation was computed. [2019-10-22 11:25:04,823 INFO L439 ceAbstractionStarter]: At program point L900-3(lines 1 964) the Hoare annotation is: false [2019-10-22 11:25:04,823 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:25:04,823 INFO L443 ceAbstractionStarter]: For program point L900-4(lines 900 917) no Hoare annotation was computed. [2019-10-22 11:25:04,823 INFO L439 ceAbstractionStarter]: At program point L900-5(lines 1 964) the Hoare annotation is: false [2019-10-22 11:25:04,823 INFO L439 ceAbstractionStarter]: At program point L702(lines 697 705) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|))) (let ((.cse3 (= ~systemActive~0 (_ bv0 32))) (.cse4 (and .cse0 .cse1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1 .cse2) .cse3) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (not .cse3) .cse2) (and (and .cse4 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse4 (= (_ bv2 32) ~waterLevel~0) .cse2)))) [2019-10-22 11:25:04,823 INFO L439 ceAbstractionStarter]: At program point L702-1(lines 697 705) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= ~systemActive~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and (and .cse0 .cse1) .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (not .cse3) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2) (and .cse0 .cse1 .cse3 .cse2))) [2019-10-22 11:25:04,824 INFO L439 ceAbstractionStarter]: At program point L702-2(lines 697 705) the Hoare annotation is: false [2019-10-22 11:25:04,824 INFO L439 ceAbstractionStarter]: At program point L702-3(lines 697 705) the Hoare annotation is: false [2019-10-22 11:25:04,824 INFO L439 ceAbstractionStarter]: At program point L702-4(lines 697 705) the Hoare annotation is: false [2019-10-22 11:25:04,824 INFO L439 ceAbstractionStarter]: At program point L702-5(lines 697 705) the Hoare annotation is: false [2019-10-22 11:25:04,824 INFO L443 ceAbstractionStarter]: For program point L422(lines 422 426) no Hoare annotation was computed. [2019-10-22 11:25:04,824 INFO L443 ceAbstractionStarter]: For program point L422-1(lines 422 426) no Hoare annotation was computed. [2019-10-22 11:25:04,824 INFO L439 ceAbstractionStarter]: At program point L571(lines 522 572) the Hoare annotation is: false [2019-10-22 11:25:04,824 INFO L439 ceAbstractionStarter]: At program point L952(lines 947 955) 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 11:25:04,824 INFO L439 ceAbstractionStarter]: At program point L853(lines 848 856) the Hoare annotation is: (let ((.cse7 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse6 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not .cse7))) (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= (_ bv2 32) ~waterLevel~0)) (.cse5 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) (.cse4 (and .cse6 .cse1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse1 .cse2) (and .cse3 .cse2 .cse4 .cse5) (and .cse0 .cse3 .cse1 .cse2 .cse5) (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2 .cse4) (and .cse6 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse7 .cse2))))) [2019-10-22 11:25:04,824 INFO L439 ceAbstractionStarter]: At program point L853-1(lines 848 856) the Hoare annotation is: false [2019-10-22 11:25:04,824 INFO L439 ceAbstractionStarter]: At program point L853-2(lines 848 856) the Hoare annotation is: false [2019-10-22 11:25:04,825 INFO L439 ceAbstractionStarter]: At program point L606(lines 606 612) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not .cse0))) (let ((.cse5 (and .cse1 .cse4)) (.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse6 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (and .cse1 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2)) (and .cse3 (= (_ bv1 32) ~switchedOnBeforeTS~0) .cse4 (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2) (and (and .cse2 .cse5) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse6 .cse2 .cse5) (and .cse3 .cse6 .cse4 .cse2))))) [2019-10-22 11:25:04,825 INFO L439 ceAbstractionStarter]: At program point L606-1(lines 606 612) the Hoare annotation is: false [2019-10-22 11:25:04,825 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:25:04,825 INFO L439 ceAbstractionStarter]: At program point L606-2(lines 606 612) the Hoare annotation is: false [2019-10-22 11:25:04,825 INFO L446 ceAbstractionStarter]: At program point L507(lines 488 510) the Hoare annotation is: true [2019-10-22 11:25:04,825 INFO L439 ceAbstractionStarter]: At program point L821(lines 816 824) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv2 32) ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:25:04,825 INFO L439 ceAbstractionStarter]: At program point L821-1(lines 816 824) the Hoare annotation is: false [2019-10-22 11:25:04,825 INFO L439 ceAbstractionStarter]: At program point L821-2(lines 816 824) the Hoare annotation is: false [2019-10-22 11:25:04,825 INFO L443 ceAbstractionStarter]: For program point L524(lines 523 570) no Hoare annotation was computed. [2019-10-22 11:25:04,825 INFO L443 ceAbstractionStarter]: For program point L904(lines 904 914) no Hoare annotation was computed. [2019-10-22 11:25:04,825 INFO L443 ceAbstractionStarter]: For program point L904-2(lines 904 914) no Hoare annotation was computed. [2019-10-22 11:25:04,826 INFO L443 ceAbstractionStarter]: For program point L904-4(lines 904 914) no Hoare annotation was computed. [2019-10-22 11:25:04,826 INFO L443 ceAbstractionStarter]: For program point L525(lines 525 529) no Hoare annotation was computed. [2019-10-22 11:25:04,826 INFO L443 ceAbstractionStarter]: For program point L905(lines 905 911) no Hoare annotation was computed. [2019-10-22 11:25:04,826 INFO L443 ceAbstractionStarter]: For program point L905-2(lines 905 911) no Hoare annotation was computed. [2019-10-22 11:25:04,826 INFO L443 ceAbstractionStarter]: For program point L905-4(lines 905 911) no Hoare annotation was computed. [2019-10-22 11:25:04,826 INFO L439 ceAbstractionStarter]: At program point L889(lines 599 605) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (not .cse3)) (.cse5 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|))) (let ((.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (and .cse4 .cse0 .cse5))) (or (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1) (and (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2) (and .cse3 (and .cse4 .cse5 .cse1)) (and (and .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))))) [2019-10-22 11:25:04,826 INFO L439 ceAbstractionStarter]: At program point L889-1(lines 599 605) the Hoare annotation is: false [2019-10-22 11:25:04,827 INFO L439 ceAbstractionStarter]: At program point L889-2(lines 599 605) the Hoare annotation is: false [2019-10-22 11:25:04,827 INFO L439 ceAbstractionStarter]: At program point L757(lines 742 760) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2) (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (and (and .cse0 .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (not (= ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv0 32)))) .cse2)))) [2019-10-22 11:25:04,827 INFO L439 ceAbstractionStarter]: At program point L757-1(lines 742 760) the Hoare annotation is: false [2019-10-22 11:25:04,827 INFO L439 ceAbstractionStarter]: At program point L757-2(lines 742 760) the Hoare annotation is: false [2019-10-22 11:25:04,827 INFO L443 ceAbstractionStarter]: For program point L559(lines 559 565) no Hoare annotation was computed. [2019-10-22 11:25:04,827 INFO L439 ceAbstractionStarter]: At program point L559-1(lines 559 565) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (not .cse3))) (let ((.cse1 (and .cse4 .cse2)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (_ bv2 32) ~waterLevel~0) .cse0 .cse1) (and (= (_ bv1 32) ~pumpRunning~0) .cse2 .cse0) (and .cse3 (and .cse4 .cse0)))))) [2019-10-22 11:25:04,828 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2019-10-22 11:25:04,828 INFO L443 ceAbstractionStarter]: For program point L543(lines 543 549) no Hoare annotation was computed. [2019-10-22 11:25:04,828 INFO L439 ceAbstractionStarter]: At program point L543-1(lines 543 549) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not .cse2))) (let ((.cse1 (and .cse3 .cse4)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (_ bv2 32) ~waterLevel~0) .cse0 .cse1) (and .cse2 (and .cse3 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0)) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse0))))) [2019-10-22 11:25:04,828 INFO L443 ceAbstractionStarter]: For program point L808(lines 808 812) no Hoare annotation was computed. [2019-10-22 11:25:04,828 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:25:04,828 INFO L439 ceAbstractionStarter]: At program point L693(lines 686 696) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv2 32) ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:25:04,828 INFO L439 ceAbstractionStarter]: At program point L693-1(lines 686 696) the Hoare annotation is: false [2019-10-22 11:25:04,828 INFO L439 ceAbstractionStarter]: At program point L693-2(lines 686 696) the Hoare annotation is: false [2019-10-22 11:25:04,828 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2019-10-22 11:25:04,828 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2019-10-22 11:25:04,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:04 BoogieIcfgContainer [2019-10-22 11:25:04,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:04,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:04,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:04,866 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:04,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:54" (3/4) ... [2019-10-22 11:25:04,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:25:04,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:25:04,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:25:04,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:25:04,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:25:04,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:25:04,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:25:04,920 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((2bv32 == tmp && 2bv32 == waterLevel) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == \result)) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:25:04,920 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:25:04,921 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:25:04,921 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32) || (((1bv32 == pumpRunning && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && 2bv32 == waterLevel) && splverifierCounter == 0bv32) [2019-10-22 11:25:04,921 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result)) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((splverifierCounter == 0bv32 && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:25:04,921 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) [2019-10-22 11:25:04,921 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32)) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:25:04,922 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || (((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (((0bv32 == pumpRunning && 0bv32 == \result) && systemActive == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:25:04,924 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:25:04,925 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && systemActive == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:25:04,925 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && !(tmp == 0bv32)) && splverifierCounter == 0bv32) [2019-10-22 11:25:04,981 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fa6f17b9-ca2d-4034-9324-e0aa4a1cfbc5/bin/utaipan/witness.graphml [2019-10-22 11:25:04,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:04,982 INFO L168 Benchmark]: Toolchain (without parser) took 12098.61 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 325.6 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -239.1 MB). Peak memory consumption was 86.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:04,982 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:04,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -202.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:04,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.63 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:04,983 INFO L168 Benchmark]: Boogie Preprocessor took 48.60 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 11:25:04,983 INFO L168 Benchmark]: RCFGBuilder took 1027.44 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: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:04,984 INFO L168 Benchmark]: TraceAbstraction took 10141.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 162.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -120.1 MB). Peak memory consumption was 362.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:04,984 INFO L168 Benchmark]: Witness Printer took 115.45 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:04,985 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 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 698.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -202.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.63 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.60 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 1027.44 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: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10141.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 162.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -120.1 MB). Peak memory consumption was 362.8 MB. Max. memory is 11.5 GB. * Witness Printer took 115.45 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 961]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 961]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 961]: 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: 697]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || (systemActive == 0bv32 && 0bv32 == pumpRunning && splverifierCounter == 0bv32) - InvariantResult [Line: 947]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && 0bv32 == pumpRunning) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: (((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || (((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == \result)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (((0bv32 == pumpRunning && 0bv32 == \result) && systemActive == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 742]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 697]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && systemActive == 0bv32) || (((1bv32 == pumpRunning && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && 2bv32 == waterLevel) && splverifierCounter == 0bv32) - InvariantResult [Line: 742]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 697]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 0bv32 == \result) && systemActive == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 697]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 697]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 697]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result)) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((splverifierCounter == 0bv32 && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((((2bv32 == tmp && 2bv32 == waterLevel) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && 2bv32 == \result)) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 742]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) || (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && !(tmp == 0bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: ((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 2bv32 == waterLevel) && splverifierCounter == 0bv32 - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: ((!(systemActive == 0bv32) && 0bv32 == pumpRunning) && 2bv32 == waterLevel) && splverifierCounter == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((1bv32 == pumpRunning && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((systemActive == 0bv32 && (0bv32 == pumpRunning && 0bv32 == \result) && splverifierCounter == 0bv32) || ((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && !(systemActive == 0bv32)) && 1bv32 == \result) && splverifierCounter == 0bv32)) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && !(systemActive == 0bv32))) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && !(systemActive == 0bv32)) && splverifierCounter == 0bv32) - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: 0bv32 == pumpRunning && splverifierCounter == 0bv32 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 3 error locations. Result: SAFE, OverallTime: 10.0s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, HoareTripleCheckerStatistics: 1407 SDtfs, 1949 SDslu, 2703 SDs, 0 SdLazy, 418 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 916 GetRequests, 871 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=310occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1197 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 158 NumberOfFragments, 838 HoareAnnotationTreeSize, 45 FomulaSimplifications, 90198 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 45 FomulaSimplificationsInter, 10537 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 890 ConstructedInterpolants, 0 QuantifiedInterpolants, 72032 SizeOfPredicates, 25 NumberOfNonLiveVariables, 2485 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 264/276 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...