./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.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_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/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 1b0c0c83f247eef1881f0b5170efc2ede9b08897 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/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 1b0c0c83f247eef1881f0b5170efc2ede9b08897 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:20:56,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:20:56,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:20:56,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:20:56,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:20:56,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:20:56,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:20:56,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:20:56,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:20:56,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:20:56,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:20:56,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:20:56,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:20:56,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:20:56,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:20:56,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:20:56,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:20:56,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:20:56,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:20:56,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:20:56,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:20:56,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:20:56,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:20:56,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:20:56,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:20:56,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:20:56,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:20:56,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:20:56,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:20:56,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:20:56,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:20:56,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:20:56,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:20:56,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:20:56,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:20:56,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:20:56,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:20:56,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:20:56,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:20:56,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:20:56,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:20:56,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:20:56,443 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:20:56,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:20:56,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:20:56,446 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:20:56,446 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:20:56,446 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:20:56,447 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:20:56,447 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:20:56,447 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:20:56,447 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:20:56,447 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:20:56,448 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:20:56,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:20:56,448 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:20:56,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:20:56,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:20:56,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:20:56,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:20:56,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:20:56,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:20:56,451 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:20:56,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:20:56,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:20:56,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:20:56,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:20:56,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:20:56,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:20:56,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:56,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:20:56,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:20:56,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:20:56,453 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:20:56,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:20:56,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:20:56,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:20:56,454 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_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/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 -> 1b0c0c83f247eef1881f0b5170efc2ede9b08897 [2019-10-22 11:20:56,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:20:56,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:20:56,511 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:20:56,512 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:20:56,513 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:20:56,513 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2019-10-22 11:20:56,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data/ac615e951/89eedc70cdd64e8894def0eb941c710f/FLAG2921e8ee3 [2019-10-22 11:20:56,960 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:20:56,961 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2019-10-22 11:20:56,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data/ac615e951/89eedc70cdd64e8894def0eb941c710f/FLAG2921e8ee3 [2019-10-22 11:20:56,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data/ac615e951/89eedc70cdd64e8894def0eb941c710f [2019-10-22 11:20:56,981 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:20:56,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:20:56,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:56,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:20:56,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:20:56,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbf3e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56, skipping insertion in model container [2019-10-22 11:20:56,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,997 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:20:57,048 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:20:57,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:57,399 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:20:57,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:57,487 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:20:57,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57 WrapperNode [2019-10-22 11:20:57,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:57,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:57,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:20:57,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:20:57,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:57,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:20:57,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:20:57,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:20:57,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:20:57,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:20:57,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:20:57,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:20:57,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:20:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:20:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:20:57,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:20:58,482 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:20:58,482 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-10-22 11:20:58,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:58 BoogieIcfgContainer [2019-10-22 11:20:58,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:20:58,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:20:58,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:20:58,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:20:58,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:20:56" (1/3) ... [2019-10-22 11:20:58,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c39904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:58, skipping insertion in model container [2019-10-22 11:20:58,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (2/3) ... [2019-10-22 11:20:58,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c39904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:58, skipping insertion in model container [2019-10-22 11:20:58,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:58" (3/3) ... [2019-10-22 11:20:58,491 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2019-10-22 11:20:58,503 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:20:58,511 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:20:58,522 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:20:58,554 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:20:58,554 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:20:58,555 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:20:58,555 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:20:58,555 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:20:58,555 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:20:58,555 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:20:58,556 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:20:58,573 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-10-22 11:20:58,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:20:58,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,583 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:58,585 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,594 INFO L82 PathProgramCache]: Analyzing trace with hash -259966017, now seen corresponding path program 1 times [2019-10-22 11:20:58,602 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,603 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584189036] [2019-10-22 11:20:58,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584189036] [2019-10-22 11:20:58,831 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,831 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:58,831 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670868421] [2019-10-22 11:20:58,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:20:58,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:20:58,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:20:58,851 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-10-22 11:20:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:58,880 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2019-10-22 11:20:58,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:20:58,881 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:20:58,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:58,893 INFO L225 Difference]: With dead ends: 228 [2019-10-22 11:20:58,893 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:20:58,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:20:58,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:20:58,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:20:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:20:58,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-10-22 11:20:58,941 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 18 [2019-10-22 11:20:58,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:58,942 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-10-22 11:20:58,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:20:58,942 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2019-10-22 11:20:58,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:20:58,943 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,943 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:58,946 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:58,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1170996770, now seen corresponding path program 1 times [2019-10-22 11:20:58,947 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,947 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750401847] [2019-10-22 11:20:58,947 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,947 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750401847] [2019-10-22 11:20:59,068 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,068 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:20:59,068 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925547928] [2019-10-22 11:20:59,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:59,070 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:59,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,071 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2019-10-22 11:20:59,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,082 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2019-10-22 11:20:59,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:59,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:20:59,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,083 INFO L225 Difference]: With dead ends: 113 [2019-10-22 11:20:59,083 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 11:20:59,084 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 11:20:59,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-10-22 11:20:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-22 11:20:59,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-10-22 11:20:59,089 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 19 [2019-10-22 11:20:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,090 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-10-22 11:20:59,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-10-22 11:20:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:20:59,091 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,091 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] [2019-10-22 11:20:59,091 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,091 INFO L82 PathProgramCache]: Analyzing trace with hash -524110554, now seen corresponding path program 1 times [2019-10-22 11:20:59,092 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,092 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614617241] [2019-10-22 11:20:59,092 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,092 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,191 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614617241] [2019-10-22 11:20:59,191 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,191 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:20:59,191 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148862610] [2019-10-22 11:20:59,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:20:59,192 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:20:59,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:20:59,193 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 6 states. [2019-10-22 11:20:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,297 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2019-10-22 11:20:59,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:20:59,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-10-22 11:20:59,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,298 INFO L225 Difference]: With dead ends: 88 [2019-10-22 11:20:59,298 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 11:20:59,299 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:20:59,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 11:20:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-10-22 11:20:59,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-22 11:20:59,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2019-10-22 11:20:59,304 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 24 [2019-10-22 11:20:59,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,305 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2019-10-22 11:20:59,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:20:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2019-10-22 11:20:59,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:20:59,306 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,306 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:59,306 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,306 INFO L82 PathProgramCache]: Analyzing trace with hash -339602961, now seen corresponding path program 1 times [2019-10-22 11:20:59,307 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,307 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094038939] [2019-10-22 11:20:59,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,353 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094038939] [2019-10-22 11:20:59,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,354 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:59,354 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597257778] [2019-10-22 11:20:59,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:59,354 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:59,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,355 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2019-10-22 11:20:59,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,385 INFO L93 Difference]: Finished difference Result 111 states and 161 transitions. [2019-10-22 11:20:59,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:59,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:20:59,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,386 INFO L225 Difference]: With dead ends: 111 [2019-10-22 11:20:59,387 INFO L226 Difference]: Without dead ends: 70 [2019-10-22 11:20:59,387 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-10-22 11:20:59,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2019-10-22 11:20:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 11:20:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2019-10-22 11:20:59,395 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 96 transitions. Word has length 26 [2019-10-22 11:20:59,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,395 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 96 transitions. [2019-10-22 11:20:59,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:59,395 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 96 transitions. [2019-10-22 11:20:59,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 11:20:59,396 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,396 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] [2019-10-22 11:20:59,396 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,397 INFO L82 PathProgramCache]: Analyzing trace with hash 659000928, now seen corresponding path program 1 times [2019-10-22 11:20:59,397 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,397 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502461431] [2019-10-22 11:20:59,397 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502461431] [2019-10-22 11:20:59,483 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:20:59,484 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441414149] [2019-10-22 11:20:59,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:59,484 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:59,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:59,485 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. Second operand 5 states. [2019-10-22 11:20:59,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,559 INFO L93 Difference]: Finished difference Result 183 states and 257 transitions. [2019-10-22 11:20:59,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:20:59,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-22 11:20:59,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,561 INFO L225 Difference]: With dead ends: 183 [2019-10-22 11:20:59,561 INFO L226 Difference]: Without dead ends: 121 [2019-10-22 11:20:59,562 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:20:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-22 11:20:59,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 74. [2019-10-22 11:20:59,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-10-22 11:20:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2019-10-22 11:20:59,571 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 32 [2019-10-22 11:20:59,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,571 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2019-10-22 11:20:59,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:59,571 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2019-10-22 11:20:59,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 11:20:59,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,572 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] [2019-10-22 11:20:59,573 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,573 INFO L82 PathProgramCache]: Analyzing trace with hash -468395165, now seen corresponding path program 1 times [2019-10-22 11:20:59,573 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,573 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237911425] [2019-10-22 11:20:59,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,653 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237911425] [2019-10-22 11:20:59,653 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,654 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:20:59,654 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907041283] [2019-10-22 11:20:59,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:59,654 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:59,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:59,655 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand 5 states. [2019-10-22 11:20:59,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,793 INFO L93 Difference]: Finished difference Result 373 states and 530 transitions. [2019-10-22 11:20:59,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:20:59,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-22 11:20:59,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,796 INFO L225 Difference]: With dead ends: 373 [2019-10-22 11:20:59,796 INFO L226 Difference]: Without dead ends: 305 [2019-10-22 11:20:59,797 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:20:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2019-10-22 11:20:59,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 121. [2019-10-22 11:20:59,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-22 11:20:59,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2019-10-22 11:20:59,823 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 32 [2019-10-22 11:20:59,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,824 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2019-10-22 11:20:59,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:59,824 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2019-10-22 11:20:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:20:59,825 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,825 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:59,825 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:59,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1539441695, now seen corresponding path program 1 times [2019-10-22 11:20:59,826 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,826 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277584428] [2019-10-22 11:20:59,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,898 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277584428] [2019-10-22 11:20:59,898 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,898 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:20:59,898 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905250987] [2019-10-22 11:20:59,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:59,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:59,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:59,900 INFO L87 Difference]: Start difference. First operand 121 states and 164 transitions. Second operand 5 states. [2019-10-22 11:21:00,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:00,065 INFO L93 Difference]: Finished difference Result 628 states and 878 transitions. [2019-10-22 11:21:00,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:00,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 11:21:00,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:00,068 INFO L225 Difference]: With dead ends: 628 [2019-10-22 11:21:00,068 INFO L226 Difference]: Without dead ends: 560 [2019-10-22 11:21:00,069 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:00,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2019-10-22 11:21:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 181. [2019-10-22 11:21:00,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-10-22 11:21:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 245 transitions. [2019-10-22 11:21:00,097 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 245 transitions. Word has length 33 [2019-10-22 11:21:00,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:00,098 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 245 transitions. [2019-10-22 11:21:00,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 245 transitions. [2019-10-22 11:21:00,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:00,099 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:00,099 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:00,099 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:00,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1744408351, now seen corresponding path program 1 times [2019-10-22 11:21:00,102 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:00,102 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137303610] [2019-10-22 11:21:00,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,147 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137303610] [2019-10-22 11:21:00,147 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:00,147 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:00,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653683860] [2019-10-22 11:21:00,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:00,148 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:00,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:00,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:00,148 INFO L87 Difference]: Start difference. First operand 181 states and 245 transitions. Second operand 4 states. [2019-10-22 11:21:00,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:00,208 INFO L93 Difference]: Finished difference Result 448 states and 616 transitions. [2019-10-22 11:21:00,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:00,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-10-22 11:21:00,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:00,210 INFO L225 Difference]: With dead ends: 448 [2019-10-22 11:21:00,210 INFO L226 Difference]: Without dead ends: 318 [2019-10-22 11:21:00,211 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:00,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2019-10-22 11:21:00,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 175. [2019-10-22 11:21:00,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-22 11:21:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 237 transitions. [2019-10-22 11:21:00,233 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 237 transitions. Word has length 33 [2019-10-22 11:21:00,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:00,234 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 237 transitions. [2019-10-22 11:21:00,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:00,234 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 237 transitions. [2019-10-22 11:21:00,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:00,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:00,235 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:00,235 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:00,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1164997414, now seen corresponding path program 1 times [2019-10-22 11:21:00,239 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:00,239 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844309167] [2019-10-22 11:21:00,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844309167] [2019-10-22 11:21:00,313 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:00,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:21:00,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713126679] [2019-10-22 11:21:00,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:00,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:00,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:00,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:00,314 INFO L87 Difference]: Start difference. First operand 175 states and 237 transitions. Second operand 7 states. [2019-10-22 11:21:00,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:00,533 INFO L93 Difference]: Finished difference Result 494 states and 680 transitions. [2019-10-22 11:21:00,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 11:21:00,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-22 11:21:00,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:00,536 INFO L225 Difference]: With dead ends: 494 [2019-10-22 11:21:00,536 INFO L226 Difference]: Without dead ends: 325 [2019-10-22 11:21:00,536 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:21:00,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-10-22 11:21:00,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 160. [2019-10-22 11:21:00,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-10-22 11:21:00,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 210 transitions. [2019-10-22 11:21:00,597 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 210 transitions. Word has length 33 [2019-10-22 11:21:00,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:00,598 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 210 transitions. [2019-10-22 11:21:00,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:00,598 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 210 transitions. [2019-10-22 11:21:00,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:00,599 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:00,599 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:00,599 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:00,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,605 INFO L82 PathProgramCache]: Analyzing trace with hash 2002573789, now seen corresponding path program 1 times [2019-10-22 11:21:00,605 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:00,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687827002] [2019-10-22 11:21:00,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687827002] [2019-10-22 11:21:00,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:00,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:21:00,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966357111] [2019-10-22 11:21:00,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:00,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:00,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:00,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:00,675 INFO L87 Difference]: Start difference. First operand 160 states and 210 transitions. Second operand 7 states. [2019-10-22 11:21:00,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:00,761 INFO L93 Difference]: Finished difference Result 434 states and 576 transitions. [2019-10-22 11:21:00,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:00,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-22 11:21:00,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:00,763 INFO L225 Difference]: With dead ends: 434 [2019-10-22 11:21:00,763 INFO L226 Difference]: Without dead ends: 280 [2019-10-22 11:21:00,763 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:00,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-10-22 11:21:00,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 160. [2019-10-22 11:21:00,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-10-22 11:21:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 207 transitions. [2019-10-22 11:21:00,783 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 207 transitions. Word has length 33 [2019-10-22 11:21:00,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:00,783 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 207 transitions. [2019-10-22 11:21:00,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:00,783 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 207 transitions. [2019-10-22 11:21:00,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:21:00,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:00,784 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:00,785 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:00,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1625888868, now seen corresponding path program 1 times [2019-10-22 11:21:00,785 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:00,785 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806541764] [2019-10-22 11:21:00,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,786 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,832 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,832 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806541764] [2019-10-22 11:21:00,832 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:00,832 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:00,832 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875038867] [2019-10-22 11:21:00,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:00,833 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:00,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:00,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:00,833 INFO L87 Difference]: Start difference. First operand 160 states and 207 transitions. Second operand 5 states. [2019-10-22 11:21:00,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:00,950 INFO L93 Difference]: Finished difference Result 822 states and 1060 transitions. [2019-10-22 11:21:00,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:00,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:21:00,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:00,953 INFO L225 Difference]: With dead ends: 822 [2019-10-22 11:21:00,953 INFO L226 Difference]: Without dead ends: 668 [2019-10-22 11:21:00,953 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 11:21:00,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2019-10-22 11:21:00,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 312. [2019-10-22 11:21:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2019-10-22 11:21:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 395 transitions. [2019-10-22 11:21:00,984 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 395 transitions. Word has length 51 [2019-10-22 11:21:00,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:00,984 INFO L462 AbstractCegarLoop]: Abstraction has 312 states and 395 transitions. [2019-10-22 11:21:00,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:00,984 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 395 transitions. [2019-10-22 11:21:00,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:21:00,985 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:00,985 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:00,985 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:00,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1149655330, now seen corresponding path program 1 times [2019-10-22 11:21:00,986 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:00,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159601768] [2019-10-22 11:21:00,986 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,986 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:21:01,041 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159601768] [2019-10-22 11:21:01,041 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666152988] [2019-10-22 11:21:01,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/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 11:21:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:01,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:01,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:01,224 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:21:01,230 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:21:01,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1676885338] [2019-10-22 11:21:01,273 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 53 [2019-10-22 11:21:01,325 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:21:01,326 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:21:01,733 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:01,734 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:21:01,738 INFO L168 Benchmark]: Toolchain (without parser) took 4755.41 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 223.3 MB). Free memory was 940.4 MB in the beginning and 1.0 GB in the end (delta: -61.6 MB). Peak memory consumption was 161.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,738 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:01,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.93 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: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,740 INFO L168 Benchmark]: Boogie Preprocessor took 48.76 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,740 INFO L168 Benchmark]: RCFGBuilder took 869.64 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: 74.1 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,741 INFO L168 Benchmark]: TraceAbstraction took 3252.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 87.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 34.0 MB). Peak memory consumption was 121.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:01,743 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 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 504.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.93 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: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.76 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 869.64 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: 74.1 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3252.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 87.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 34.0 MB). Peak memory consumption was 121.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:03,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:03,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:03,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:03,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:03,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:03,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:03,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:03,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:03,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:03,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:03,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:03,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:03,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:03,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:03,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:03,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:03,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:03,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:03,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:03,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:03,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:03,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:03,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:03,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:03,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:03,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:03,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:03,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:03,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:03,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:03,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:03,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:03,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:03,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:03,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:03,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:03,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:03,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:03,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:03,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:03,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:03,928 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:03,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:03,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:03,929 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:03,929 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:03,929 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:03,929 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:03,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:03,929 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:03,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:03,930 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:03,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:03,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:03,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:03,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:03,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:03,931 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:03,931 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:03,932 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:03,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:03,932 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:03,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:03,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:03,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:03,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:03,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:03,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:03,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:03,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:03,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:03,933 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:03,933 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:03,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:03,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:03,934 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_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/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 -> 1b0c0c83f247eef1881f0b5170efc2ede9b08897 [2019-10-22 11:21:03,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:03,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:03,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:03,977 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:03,977 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:03,978 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2019-10-22 11:21:04,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data/ae9121fb7/7a75675d6f264294b74b0855c4709394/FLAGaaec16ef1 [2019-10-22 11:21:04,467 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:04,468 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2019-10-22 11:21:04,475 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data/ae9121fb7/7a75675d6f264294b74b0855c4709394/FLAGaaec16ef1 [2019-10-22 11:21:04,485 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/data/ae9121fb7/7a75675d6f264294b74b0855c4709394 [2019-10-22 11:21:04,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:04,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:04,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:04,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:04,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:04,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e61d2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04, skipping insertion in model container [2019-10-22 11:21:04,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,502 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:04,548 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:04,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:04,946 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:05,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:05,069 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:05,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05 WrapperNode [2019-10-22 11:21:05,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:05,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:05,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:05,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:05,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... [2019-10-22 11:21:05,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... [2019-10-22 11:21:05,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:05,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:05,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:05,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:05,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... [2019-10-22 11:21:05,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... [2019-10-22 11:21:05,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... [2019-10-22 11:21:05,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... [2019-10-22 11:21:05,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... [2019-10-22 11:21:05,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... [2019-10-22 11:21:05,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... [2019-10-22 11:21:05,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:05,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:05,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:05,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:05,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:21:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:06,023 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:06,024 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-10-22 11:21:06,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:06 BoogieIcfgContainer [2019-10-22 11:21:06,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:06,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:06,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:06,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:06,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:04" (1/3) ... [2019-10-22 11:21:06,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f70e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:06, skipping insertion in model container [2019-10-22 11:21:06,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:05" (2/3) ... [2019-10-22 11:21:06,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f70e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:06, skipping insertion in model container [2019-10-22 11:21:06,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:06" (3/3) ... [2019-10-22 11:21:06,032 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2019-10-22 11:21:06,041 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:06,048 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:06,058 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:06,080 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:06,080 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:06,081 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:06,081 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:06,081 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:06,081 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:06,081 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:06,081 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:06,096 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-10-22 11:21:06,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:21:06,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:06,103 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:06,105 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:06,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:06,110 INFO L82 PathProgramCache]: Analyzing trace with hash -259966017, now seen corresponding path program 1 times [2019-10-22 11:21:06,120 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:06,120 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1709844351] [2019-10-22 11:21:06,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:06,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:21:06,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,341 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:06,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1709844351] [2019-10-22 11:21:06,347 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:06,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:21:06,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503739904] [2019-10-22 11:21:06,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:06,354 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:06,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:06,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:06,369 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-10-22 11:21:06,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:06,403 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2019-10-22 11:21:06,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:06,405 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:21:06,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:06,418 INFO L225 Difference]: With dead ends: 228 [2019-10-22 11:21:06,420 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:21:06,423 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:06,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:21:06,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:21:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:21:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-10-22 11:21:06,471 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 18 [2019-10-22 11:21:06,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:06,472 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-10-22 11:21:06,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:06,472 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2019-10-22 11:21:06,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:06,473 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:06,473 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:06,677 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,677 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:06,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:06,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1170996770, now seen corresponding path program 1 times [2019-10-22 11:21:06,678 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:06,679 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [723915441] [2019-10-22 11:21:06,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:06,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:06,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:06,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,844 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [723915441] [2019-10-22 11:21:06,853 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:06,853 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:06,853 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059224811] [2019-10-22 11:21:06,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:06,855 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:06,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:06,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:06,861 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 4 states. [2019-10-22 11:21:06,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:06,898 INFO L93 Difference]: Finished difference Result 220 states and 324 transitions. [2019-10-22 11:21:06,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:06,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-10-22 11:21:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:06,900 INFO L225 Difference]: With dead ends: 220 [2019-10-22 11:21:06,901 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:21:06,902 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:06,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:21:06,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:21:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:21:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 162 transitions. [2019-10-22 11:21:06,914 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 162 transitions. Word has length 19 [2019-10-22 11:21:06,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:06,915 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 162 transitions. [2019-10-22 11:21:06,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:06,915 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 162 transitions. [2019-10-22 11:21:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:21:06,916 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:06,916 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:07,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,117 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:07,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:07,118 INFO L82 PathProgramCache]: Analyzing trace with hash 773005703, now seen corresponding path program 1 times [2019-10-22 11:21:07,118 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:07,119 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [887390113] [2019-10-22 11:21:07,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:07,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:07,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:07,288 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:07,291 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [887390113] [2019-10-22 11:21:07,291 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:07,291 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:21:07,292 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568157597] [2019-10-22 11:21:07,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:07,292 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:07,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:07,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:07,293 INFO L87 Difference]: Start difference. First operand 113 states and 162 transitions. Second operand 3 states. [2019-10-22 11:21:07,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:07,433 INFO L93 Difference]: Finished difference Result 273 states and 390 transitions. [2019-10-22 11:21:07,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:07,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 11:21:07,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:07,435 INFO L225 Difference]: With dead ends: 273 [2019-10-22 11:21:07,435 INFO L226 Difference]: Without dead ends: 166 [2019-10-22 11:21:07,436 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:07,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-10-22 11:21:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2019-10-22 11:21:07,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-10-22 11:21:07,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 222 transitions. [2019-10-22 11:21:07,468 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 222 transitions. Word has length 21 [2019-10-22 11:21:07,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:07,468 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 222 transitions. [2019-10-22 11:21:07,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:07,468 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 222 transitions. [2019-10-22 11:21:07,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:21:07,469 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:07,469 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:07,672 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,673 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:07,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:07,673 INFO L82 PathProgramCache]: Analyzing trace with hash 2098239128, now seen corresponding path program 1 times [2019-10-22 11:21:07,674 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:07,674 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [419358554] [2019-10-22 11:21:07,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:07,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:07,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:07,868 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:07,876 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [419358554] [2019-10-22 11:21:07,877 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:07,877 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:07,877 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663038739] [2019-10-22 11:21:07,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:07,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:07,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:07,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:07,878 INFO L87 Difference]: Start difference. First operand 160 states and 222 transitions. Second operand 5 states. [2019-10-22 11:21:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:08,064 INFO L93 Difference]: Finished difference Result 441 states and 597 transitions. [2019-10-22 11:21:08,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:08,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:21:08,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:08,067 INFO L225 Difference]: With dead ends: 441 [2019-10-22 11:21:08,067 INFO L226 Difference]: Without dead ends: 287 [2019-10-22 11:21:08,071 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2019-10-22 11:21:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 178. [2019-10-22 11:21:08,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-10-22 11:21:08,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 240 transitions. [2019-10-22 11:21:08,098 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 240 transitions. Word has length 27 [2019-10-22 11:21:08,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:08,099 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 240 transitions. [2019-10-22 11:21:08,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:08,099 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 240 transitions. [2019-10-22 11:21:08,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:21:08,100 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:08,100 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:08,303 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:08,304 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:08,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:08,305 INFO L82 PathProgramCache]: Analyzing trace with hash 970843035, now seen corresponding path program 1 times [2019-10-22 11:21:08,306 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:08,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1102119807] [2019-10-22 11:21:08,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:08,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:08,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:08,463 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:08,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1102119807] [2019-10-22 11:21:08,494 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:08,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-10-22 11:21:08,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608847666] [2019-10-22 11:21:08,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:08,495 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:08,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:08,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:08,496 INFO L87 Difference]: Start difference. First operand 178 states and 240 transitions. Second operand 8 states. [2019-10-22 11:21:09,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,253 INFO L93 Difference]: Finished difference Result 1927 states and 2631 transitions. [2019-10-22 11:21:09,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-22 11:21:09,254 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-10-22 11:21:09,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,260 INFO L225 Difference]: With dead ends: 1927 [2019-10-22 11:21:09,260 INFO L226 Difference]: Without dead ends: 1755 [2019-10-22 11:21:09,261 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-10-22 11:21:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2019-10-22 11:21:09,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 438. [2019-10-22 11:21:09,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2019-10-22 11:21:09,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 577 transitions. [2019-10-22 11:21:09,320 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 577 transitions. Word has length 27 [2019-10-22 11:21:09,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,321 INFO L462 AbstractCegarLoop]: Abstraction has 438 states and 577 transitions. [2019-10-22 11:21:09,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 577 transitions. [2019-10-22 11:21:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:09,323 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:09,323 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:09,526 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:09,527 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:09,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:09,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1744408351, now seen corresponding path program 1 times [2019-10-22 11:21:09,528 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:09,529 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1530523681] [2019-10-22 11:21:09,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:09,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:21:09,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:09,686 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:09,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1530523681] [2019-10-22 11:21:09,691 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:09,691 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-10-22 11:21:09,691 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164558352] [2019-10-22 11:21:09,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:09,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:09,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:09,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:09,692 INFO L87 Difference]: Start difference. First operand 438 states and 577 transitions. Second operand 4 states. [2019-10-22 11:21:09,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,862 INFO L93 Difference]: Finished difference Result 1086 states and 1448 transitions. [2019-10-22 11:21:09,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:09,864 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-10-22 11:21:09,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,866 INFO L225 Difference]: With dead ends: 1086 [2019-10-22 11:21:09,866 INFO L226 Difference]: Without dead ends: 763 [2019-10-22 11:21:09,867 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2019-10-22 11:21:09,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 432. [2019-10-22 11:21:09,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2019-10-22 11:21:09,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 565 transitions. [2019-10-22 11:21:09,904 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 565 transitions. Word has length 33 [2019-10-22 11:21:09,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,904 INFO L462 AbstractCegarLoop]: Abstraction has 432 states and 565 transitions. [2019-10-22 11:21:09,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:09,904 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 565 transitions. [2019-10-22 11:21:09,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:09,909 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:09,909 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:10,110 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,110 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:10,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:10,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1164997414, now seen corresponding path program 1 times [2019-10-22 11:21:10,111 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:10,111 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1680242480] [2019-10-22 11:21:10,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:10,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:10,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:10,265 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:10,289 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1680242480] [2019-10-22 11:21:10,289 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:10,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:21:10,289 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216350789] [2019-10-22 11:21:10,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:10,290 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:10,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:10,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:10,290 INFO L87 Difference]: Start difference. First operand 432 states and 565 transitions. Second operand 8 states. [2019-10-22 11:21:10,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:10,674 INFO L93 Difference]: Finished difference Result 1209 states and 1598 transitions. [2019-10-22 11:21:10,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:10,675 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-10-22 11:21:10,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:10,677 INFO L225 Difference]: With dead ends: 1209 [2019-10-22 11:21:10,677 INFO L226 Difference]: Without dead ends: 783 [2019-10-22 11:21:10,678 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:21:10,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2019-10-22 11:21:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 361. [2019-10-22 11:21:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-10-22 11:21:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 448 transitions. [2019-10-22 11:21:10,711 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 448 transitions. Word has length 33 [2019-10-22 11:21:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:10,711 INFO L462 AbstractCegarLoop]: Abstraction has 361 states and 448 transitions. [2019-10-22 11:21:10,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 448 transitions. [2019-10-22 11:21:10,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:10,712 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:10,713 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:10,913 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:10,913 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:10,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:10,914 INFO L82 PathProgramCache]: Analyzing trace with hash 2002573789, now seen corresponding path program 1 times [2019-10-22 11:21:10,914 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:10,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1304889237] [2019-10-22 11:21:10,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:11,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:11,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,071 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:11,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1304889237] [2019-10-22 11:21:11,102 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:11,102 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:21:11,103 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490552095] [2019-10-22 11:21:11,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:11,103 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:11,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:11,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:11,104 INFO L87 Difference]: Start difference. First operand 361 states and 448 transitions. Second operand 8 states. [2019-10-22 11:21:11,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:11,268 INFO L93 Difference]: Finished difference Result 953 states and 1189 transitions. [2019-10-22 11:21:11,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:11,269 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-10-22 11:21:11,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:11,275 INFO L225 Difference]: With dead ends: 953 [2019-10-22 11:21:11,275 INFO L226 Difference]: Without dead ends: 598 [2019-10-22 11:21:11,276 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:21:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2019-10-22 11:21:11,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 361. [2019-10-22 11:21:11,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-10-22 11:21:11,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 439 transitions. [2019-10-22 11:21:11,341 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 439 transitions. Word has length 33 [2019-10-22 11:21:11,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:11,342 INFO L462 AbstractCegarLoop]: Abstraction has 361 states and 439 transitions. [2019-10-22 11:21:11,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:11,342 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 439 transitions. [2019-10-22 11:21:11,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 11:21:11,344 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:11,345 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:11,545 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:11,546 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:11,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:11,546 INFO L82 PathProgramCache]: Analyzing trace with hash -922202407, now seen corresponding path program 1 times [2019-10-22 11:21:11,546 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:11,547 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [665503093] [2019-10-22 11:21:11,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:11,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:11,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,693 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:11,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [665503093] [2019-10-22 11:21:11,700 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:11,700 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:21:11,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65568831] [2019-10-22 11:21:11,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:11,701 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:11,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:11,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:11,702 INFO L87 Difference]: Start difference. First operand 361 states and 439 transitions. Second operand 3 states. [2019-10-22 11:21:11,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:11,722 INFO L93 Difference]: Finished difference Result 361 states and 439 transitions. [2019-10-22 11:21:11,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:11,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-22 11:21:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:11,723 INFO L225 Difference]: With dead ends: 361 [2019-10-22 11:21:11,723 INFO L226 Difference]: Without dead ends: 151 [2019-10-22 11:21:11,724 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:11,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-10-22 11:21:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-10-22 11:21:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-10-22 11:21:11,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 194 transitions. [2019-10-22 11:21:11,738 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 194 transitions. Word has length 46 [2019-10-22 11:21:11,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:11,739 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 194 transitions. [2019-10-22 11:21:11,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:11,740 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 194 transitions. [2019-10-22 11:21:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:21:11,740 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:11,740 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:11,941 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:11,941 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:11,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:11,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1351129254, now seen corresponding path program 1 times [2019-10-22 11:21:11,941 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:11,942 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1731353835] [2019-10-22 11:21:11,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:12,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:12,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:12,064 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:12,079 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:12,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1731353835] [2019-10-22 11:21:12,079 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:12,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:21:12,079 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696010201] [2019-10-22 11:21:12,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:12,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:12,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:12,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:12,080 INFO L87 Difference]: Start difference. First operand 151 states and 194 transitions. Second operand 6 states. [2019-10-22 11:21:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:12,116 INFO L93 Difference]: Finished difference Result 294 states and 383 transitions. [2019-10-22 11:21:12,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:21:12,116 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2019-10-22 11:21:12,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:12,117 INFO L225 Difference]: With dead ends: 294 [2019-10-22 11:21:12,117 INFO L226 Difference]: Without dead ends: 175 [2019-10-22 11:21:12,118 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:12,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-22 11:21:12,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 130. [2019-10-22 11:21:12,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-22 11:21:12,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 165 transitions. [2019-10-22 11:21:12,130 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 165 transitions. Word has length 51 [2019-10-22 11:21:12,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:12,130 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 165 transitions. [2019-10-22 11:21:12,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:12,130 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 165 transitions. [2019-10-22 11:21:12,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 11:21:12,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:12,131 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:12,332 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:12,332 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:12,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:12,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1625888868, now seen corresponding path program 1 times [2019-10-22 11:21:12,333 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:12,333 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1120629215] [2019-10-22 11:21:12,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:12,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:12,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:12,454 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:12,454 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:12,460 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:12,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1120629215] [2019-10-22 11:21:12,461 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:12,461 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-10-22 11:21:12,461 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10128156] [2019-10-22 11:21:12,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:12,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:12,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:12,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:12,462 INFO L87 Difference]: Start difference. First operand 130 states and 165 transitions. Second operand 5 states. [2019-10-22 11:21:12,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:12,585 INFO L93 Difference]: Finished difference Result 670 states and 843 transitions. [2019-10-22 11:21:12,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:12,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-10-22 11:21:12,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:12,588 INFO L225 Difference]: With dead ends: 670 [2019-10-22 11:21:12,588 INFO L226 Difference]: Without dead ends: 546 [2019-10-22 11:21:12,588 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2019-10-22 11:21:12,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 252. [2019-10-22 11:21:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-10-22 11:21:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 314 transitions. [2019-10-22 11:21:12,614 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 314 transitions. Word has length 51 [2019-10-22 11:21:12,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:12,615 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 314 transitions. [2019-10-22 11:21:12,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:12,615 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 314 transitions. [2019-10-22 11:21:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:21:12,617 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:12,617 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:12,817 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:12,818 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:12,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:12,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1149655330, now seen corresponding path program 1 times [2019-10-22 11:21:12,818 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:12,818 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1673837719] [2019-10-22 11:21:12,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/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 11:21:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:12,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:12,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:21:12,974 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:21:13,004 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1673837719] [2019-10-22 11:21:13,004 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37379288] [2019-10-22 11:21:13,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:13,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:13,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:21:13,109 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:21:13,117 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:21:13,117 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2019-10-22 11:21:13,117 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286217198] [2019-10-22 11:21:13,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:13,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:13,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:13,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:13,118 INFO L87 Difference]: Start difference. First operand 252 states and 314 transitions. Second operand 8 states. [2019-10-22 11:21:13,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:13,412 INFO L93 Difference]: Finished difference Result 622 states and 769 transitions. [2019-10-22 11:21:13,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:13,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2019-10-22 11:21:13,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:13,414 INFO L225 Difference]: With dead ends: 622 [2019-10-22 11:21:13,414 INFO L226 Difference]: Without dead ends: 376 [2019-10-22 11:21:13,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:13,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-10-22 11:21:13,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 220. [2019-10-22 11:21:13,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-10-22 11:21:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 267 transitions. [2019-10-22 11:21:13,440 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 267 transitions. Word has length 52 [2019-10-22 11:21:13,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:13,441 INFO L462 AbstractCegarLoop]: Abstraction has 220 states and 267 transitions. [2019-10-22 11:21:13,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:13,441 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 267 transitions. [2019-10-22 11:21:13,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-22 11:21:13,441 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:13,442 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] [2019-10-22 11:21:13,842 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:13,843 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:13,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:13,843 INFO L82 PathProgramCache]: Analyzing trace with hash 889469905, now seen corresponding path program 1 times [2019-10-22 11:21:13,843 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:13,843 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [947847415] [2019-10-22 11:21:13,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:13,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:21:13,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:14,013 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:21:14,022 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [947847415] [2019-10-22 11:21:14,022 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:14,023 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:14,023 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090022109] [2019-10-22 11:21:14,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:14,023 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:14,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:14,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:14,025 INFO L87 Difference]: Start difference. First operand 220 states and 267 transitions. Second operand 6 states. [2019-10-22 11:21:14,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:14,180 INFO L93 Difference]: Finished difference Result 544 states and 668 transitions. [2019-10-22 11:21:14,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 11:21:14,181 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2019-10-22 11:21:14,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:14,181 INFO L225 Difference]: With dead ends: 544 [2019-10-22 11:21:14,182 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:14,182 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:21:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:14,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:14,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:14,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:14,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2019-10-22 11:21:14,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:14,183 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:14,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:14,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:14,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:14,384 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:14,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:14,761 WARN L191 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 140 [2019-10-22 11:21:15,096 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 200 [2019-10-22 11:21:15,250 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 110 [2019-10-22 11:21:15,683 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2019-10-22 11:21:15,880 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 166 [2019-10-22 11:21:16,715 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 42 [2019-10-22 11:21:18,032 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 198 DAG size of output: 47 [2019-10-22 11:21:18,207 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2019-10-22 11:21:18,687 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 44 [2019-10-22 11:21:19,031 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 32 [2019-10-22 11:21:19,193 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2019-10-22 11:21:19,579 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 44 [2019-10-22 11:21:20,376 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 34 [2019-10-22 11:21:21,097 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 34 [2019-10-22 11:21:21,255 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 33 [2019-10-22 11:21:21,685 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2019-10-22 11:21:21,687 INFO L439 ceAbstractionStarter]: At program point L532(lines 532 538) the Hoare annotation is: (let ((.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32))) (.cse4 (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32))) (.cse7 (= (_ bv0 32) ~pumpRunning~0)) (.cse8 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)))) (let ((.cse0 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (and (and .cse7 .cse8 (not (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)))) .cse3)) (.cse2 (and (and (and (= (_ bv1 32) ~pumpRunning~0) .cse8 .cse6) .cse4 .cse5) .cse3)) (.cse9 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 .cse1) (and .cse0 .cse2) (and (and .cse3 (and .cse4 .cse5 (and .cse6 (and .cse7 .cse8)))) .cse0 (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32))) (and .cse9 .cse1) (and .cse2 .cse9)))) [2019-10-22 11:21:21,687 INFO L439 ceAbstractionStarter]: At program point L532-1(lines 532 538) the Hoare annotation is: false [2019-10-22 11:21:21,687 INFO L439 ceAbstractionStarter]: At program point L532-2(lines 532 538) the Hoare annotation is: false [2019-10-22 11:21:21,687 INFO L439 ceAbstractionStarter]: At program point L103(lines 99 105) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:21,687 INFO L439 ceAbstractionStarter]: At program point L929(lines 924 932) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:21,688 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 860) no Hoare annotation was computed. [2019-10-22 11:21:21,688 INFO L446 ceAbstractionStarter]: At program point L139(lines 120 142) the Hoare annotation is: true [2019-10-22 11:21:21,688 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 860) no Hoare annotation was computed. [2019-10-22 11:21:21,688 INFO L443 ceAbstractionStarter]: For program point L768(lines 768 772) no Hoare annotation was computed. [2019-10-22 11:21:21,688 INFO L443 ceAbstractionStarter]: For program point L768-3(lines 768 772) no Hoare annotation was computed. [2019-10-22 11:21:21,688 INFO L439 ceAbstractionStarter]: At program point L636(lines 631 639) the Hoare annotation is: (and (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32)) (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8 (_ bv0 32))) [2019-10-22 11:21:21,688 INFO L439 ceAbstractionStarter]: At program point L636-1(lines 631 639) the Hoare annotation is: false [2019-10-22 11:21:21,688 INFO L443 ceAbstractionStarter]: For program point L768-6(lines 768 772) no Hoare annotation was computed. [2019-10-22 11:21:21,688 INFO L439 ceAbstractionStarter]: At program point L636-2(lines 631 639) the Hoare annotation is: false [2019-10-22 11:21:21,689 INFO L443 ceAbstractionStarter]: For program point L736(lines 736 747) no Hoare annotation was computed. [2019-10-22 11:21:21,689 INFO L439 ceAbstractionStarter]: At program point L837(lines 832 840) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8 (_ bv0 32)))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2 .cse3 (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32)) (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) .cse4) (and .cse0 (and (and (= (_ bv0 32) ~pumpRunning~0) (not (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse3 (not (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)))) .cse1) .cse2 .cse4))) [2019-10-22 11:21:21,689 INFO L439 ceAbstractionStarter]: At program point L837-1(lines 832 840) the Hoare annotation is: false [2019-10-22 11:21:21,689 INFO L439 ceAbstractionStarter]: At program point L837-2(lines 832 840) the Hoare annotation is: false [2019-10-22 11:21:21,689 INFO L439 ceAbstractionStarter]: At program point L805(lines 800 808) the Hoare annotation is: (let ((.cse0 (and (and (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (and (= (_ bv1 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32)))) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))))) (or (and .cse0 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32))) (and (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) .cse0))) [2019-10-22 11:21:21,689 INFO L439 ceAbstractionStarter]: At program point L805-1(lines 800 808) the Hoare annotation is: (let ((.cse9 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)))) (let ((.cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse8 (and (and .cse9 .cse3 (not (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)))) .cse2)) (.cse1 (= (_ bv1 32) ~pumpRunning~0)) (.cse10 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse11 (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32))) (.cse7 (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse8 .cse4) (and (and (and (and .cse9 .cse3) .cse6) .cse5 .cse7) .cse2 .cse10 .cse11) (and .cse8 .cse10 .cse11) (and .cse1 .cse2 .cse10 .cse3 .cse11 .cse5 .cse6 .cse7)))) [2019-10-22 11:21:21,689 INFO L439 ceAbstractionStarter]: At program point L805-2(lines 800 808) the Hoare annotation is: false [2019-10-22 11:21:21,689 INFO L439 ceAbstractionStarter]: At program point L805-3(lines 800 808) the Hoare annotation is: false [2019-10-22 11:21:21,690 INFO L439 ceAbstractionStarter]: At program point L805-4(lines 800 808) the Hoare annotation is: false [2019-10-22 11:21:21,690 INFO L439 ceAbstractionStarter]: At program point L805-5(lines 800 808) the Hoare annotation is: false [2019-10-22 11:21:21,690 INFO L443 ceAbstractionStarter]: For program point L707(lines 706 751) no Hoare annotation was computed. [2019-10-22 11:21:21,690 INFO L443 ceAbstractionStarter]: For program point L708(lines 708 712) no Hoare annotation was computed. [2019-10-22 11:21:21,690 INFO L443 ceAbstractionStarter]: For program point L874(lines 874 894) no Hoare annotation was computed. [2019-10-22 11:21:21,690 INFO L443 ceAbstractionStarter]: For program point L874-2(lines 874 894) no Hoare annotation was computed. [2019-10-22 11:21:21,690 INFO L443 ceAbstractionStarter]: For program point L742(lines 742 746) no Hoare annotation was computed. [2019-10-22 11:21:21,690 INFO L443 ceAbstractionStarter]: For program point L874-4(lines 874 894) no Hoare annotation was computed. [2019-10-22 11:21:21,690 INFO L443 ceAbstractionStarter]: For program point L742-2(lines 525 531) no Hoare annotation was computed. [2019-10-22 11:21:21,690 INFO L439 ceAbstractionStarter]: At program point L52-2(lines 52 66) the Hoare annotation is: false [2019-10-22 11:21:21,690 INFO L443 ceAbstractionStarter]: For program point L845(lines 845 851) no Hoare annotation was computed. [2019-10-22 11:21:21,690 INFO L443 ceAbstractionStarter]: For program point L845-1(lines 845 851) no Hoare annotation was computed. [2019-10-22 11:21:21,691 INFO L443 ceAbstractionStarter]: For program point L845-2(lines 845 851) no Hoare annotation was computed. [2019-10-22 11:21:21,691 INFO L443 ceAbstractionStarter]: For program point L845-3(lines 845 851) no Hoare annotation was computed. [2019-10-22 11:21:21,691 INFO L443 ceAbstractionStarter]: For program point L845-4(lines 845 851) no Hoare annotation was computed. [2019-10-22 11:21:21,691 INFO L443 ceAbstractionStarter]: For program point L845-5(lines 845 851) no Hoare annotation was computed. [2019-10-22 11:21:21,691 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:21,691 INFO L443 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2019-10-22 11:21:21,691 INFO L443 ceAbstractionStarter]: For program point L780(lines 780 784) no Hoare annotation was computed. [2019-10-22 11:21:21,691 INFO L443 ceAbstractionStarter]: For program point L880(lines 880 893) no Hoare annotation was computed. [2019-10-22 11:21:21,692 INFO L439 ceAbstractionStarter]: At program point L880-1(lines 1 932) the Hoare annotation is: (let ((.cse0 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32))) (.cse9 (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse10 (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse4 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32))) (.cse6 (= (bvadd ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8 (_ bv4294967295 32)) (_ bv0 32))) (.cse11 (and (and (= (_ bv1 32) ~pumpRunning~0) .cse2 .cse8) .cse9 .cse10)) (.cse12 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse7 (and .cse0 (and .cse1 .cse2 (not (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)))))) (.cse3 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse13 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8 (_ bv0 32)))) (or (and (and .cse0 (and .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse4 .cse5 (and .cse0 (and (and .cse8 (and .cse1 .cse2)) .cse9 .cse10)) .cse6) (and .cse4 .cse5 .cse6 (and .cse0 .cse11)) (and .cse12 .cse0 .cse11 .cse3 .cse13) (and .cse12 .cse7 .cse3 .cse13)))) [2019-10-22 11:21:21,692 INFO L443 ceAbstractionStarter]: For program point L880-2(lines 880 893) no Hoare annotation was computed. [2019-10-22 11:21:21,692 INFO L439 ceAbstractionStarter]: At program point L880-3(lines 1 932) the Hoare annotation is: false [2019-10-22 11:21:21,692 INFO L443 ceAbstractionStarter]: For program point L880-4(lines 880 893) no Hoare annotation was computed. [2019-10-22 11:21:21,693 INFO L439 ceAbstractionStarter]: At program point L880-5(lines 1 932) the Hoare annotation is: false [2019-10-22 11:21:21,693 INFO L443 ceAbstractionStarter]: For program point L583(lines 583 600) no Hoare annotation was computed. [2019-10-22 11:21:21,693 INFO L443 ceAbstractionStarter]: For program point L583-1(lines 583 600) no Hoare annotation was computed. [2019-10-22 11:21:21,693 INFO L443 ceAbstractionStarter]: For program point L583-2(lines 583 600) no Hoare annotation was computed. [2019-10-22 11:21:21,693 INFO L443 ceAbstractionStarter]: For program point L716(lines 716 722) no Hoare annotation was computed. [2019-10-22 11:21:21,693 INFO L439 ceAbstractionStarter]: At program point L716-1(lines 716 722) the Hoare annotation is: (let ((.cse6 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse7 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse1 (and .cse6 (and (= (_ bv0 32) ~pumpRunning~0) .cse7))) (.cse2 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= (bvadd ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (and (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (and (= (_ bv1 32) ~pumpRunning~0) .cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32))))) (.cse0 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 .cse1) (and .cse1 .cse2 .cse3 .cse4) (and (and .cse5 .cse6) .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse5 .cse6 .cse0 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8 (_ bv0 32)))))) [2019-10-22 11:21:21,693 INFO L443 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2019-10-22 11:21:21,693 INFO L443 ceAbstractionStarter]: For program point L56-1(lines 525 531) no Hoare annotation was computed. [2019-10-22 11:21:21,693 INFO L439 ceAbstractionStarter]: At program point L850(lines 841 854) the Hoare annotation is: false [2019-10-22 11:21:21,694 INFO L439 ceAbstractionStarter]: At program point L850-1(lines 841 854) the Hoare annotation is: (let ((.cse6 (= (_ bv0 32) ~pumpRunning~0)) (.cse7 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse3 (and .cse6 .cse7 (not (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))))) (.cse4 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (and (= (_ bv0 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse6 .cse7)) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse0 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 (and .cse1 .cse2 .cse3)) (and .cse1 .cse2 .cse4 .cse3) (and .cse4 (and .cse5 .cse2)) (and .cse5 .cse2 .cse0)))) [2019-10-22 11:21:21,694 INFO L439 ceAbstractionStarter]: At program point L850-2(lines 841 854) the Hoare annotation is: false [2019-10-22 11:21:21,694 INFO L439 ceAbstractionStarter]: At program point L850-3(lines 841 854) the Hoare annotation is: false [2019-10-22 11:21:21,694 INFO L439 ceAbstractionStarter]: At program point L850-4(lines 841 854) the Hoare annotation is: false [2019-10-22 11:21:21,694 INFO L443 ceAbstractionStarter]: For program point L685(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,694 INFO L439 ceAbstractionStarter]: At program point L850-5(lines 841 854) the Hoare annotation is: false [2019-10-22 11:21:21,694 INFO L443 ceAbstractionStarter]: For program point L685-2(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,694 INFO L443 ceAbstractionStarter]: For program point L685-3(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,694 INFO L443 ceAbstractionStarter]: For program point L685-5(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,694 INFO L443 ceAbstractionStarter]: For program point L685-6(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,694 INFO L443 ceAbstractionStarter]: For program point L685-8(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,694 INFO L443 ceAbstractionStarter]: For program point L685-9(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,694 INFO L443 ceAbstractionStarter]: For program point L685-11(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,695 INFO L443 ceAbstractionStarter]: For program point L685-12(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,695 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:21,695 INFO L443 ceAbstractionStarter]: For program point L685-14(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,695 INFO L443 ceAbstractionStarter]: For program point L685-15(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,695 INFO L443 ceAbstractionStarter]: For program point L685-17(lines 685 689) no Hoare annotation was computed. [2019-10-22 11:21:21,695 INFO L443 ceAbstractionStarter]: For program point L884(lines 884 890) no Hoare annotation was computed. [2019-10-22 11:21:21,695 INFO L443 ceAbstractionStarter]: For program point L884-2(lines 884 890) no Hoare annotation was computed. [2019-10-22 11:21:21,695 INFO L439 ceAbstractionStarter]: At program point L752(lines 705 753) the Hoare annotation is: false [2019-10-22 11:21:21,696 INFO L443 ceAbstractionStarter]: For program point L884-4(lines 884 890) no Hoare annotation was computed. [2019-10-22 11:21:21,696 INFO L443 ceAbstractionStarter]: For program point L587(lines 587 595) no Hoare annotation was computed. [2019-10-22 11:21:21,696 INFO L443 ceAbstractionStarter]: For program point L587-1(lines 587 595) no Hoare annotation was computed. [2019-10-22 11:21:21,696 INFO L443 ceAbstractionStarter]: For program point L587-2(lines 587 595) no Hoare annotation was computed. [2019-10-22 11:21:21,696 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:21,696 INFO L443 ceAbstractionStarter]: For program point L557(lines 557 574) no Hoare annotation was computed. [2019-10-22 11:21:21,696 INFO L443 ceAbstractionStarter]: For program point L557-1(lines 557 574) no Hoare annotation was computed. [2019-10-22 11:21:21,696 INFO L443 ceAbstractionStarter]: For program point L557-2(lines 557 574) no Hoare annotation was computed. [2019-10-22 11:21:21,697 INFO L443 ceAbstractionStarter]: For program point L557-3(lines 557 574) no Hoare annotation was computed. [2019-10-22 11:21:21,697 INFO L443 ceAbstractionStarter]: For program point L557-4(lines 557 574) no Hoare annotation was computed. [2019-10-22 11:21:21,697 INFO L443 ceAbstractionStarter]: For program point L557-5(lines 557 574) no Hoare annotation was computed. [2019-10-22 11:21:21,697 INFO L439 ceAbstractionStarter]: At program point L921(lines 1 932) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:21:21,697 INFO L439 ceAbstractionStarter]: At program point L525(lines 524 543) the Hoare annotation is: (let ((.cse5 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse4 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse0 (and .cse5 (and (= (_ bv0 32) ~pumpRunning~0) .cse4))) (.cse2 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (and (and (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (and (= (_ bv1 32) ~pumpRunning~0) .cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32)))) .cse5)) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 .cse1) (and .cse0 .cse2) (and .cse3 .cse2) (and .cse3 .cse1)))) [2019-10-22 11:21:21,697 INFO L443 ceAbstractionStarter]: For program point L525-1(lines 525 531) no Hoare annotation was computed. [2019-10-22 11:21:21,697 INFO L439 ceAbstractionStarter]: At program point L525-2(lines 524 543) the Hoare annotation is: false [2019-10-22 11:21:21,697 INFO L439 ceAbstractionStarter]: At program point L525-3(lines 524 543) the Hoare annotation is: false [2019-10-22 11:21:21,697 INFO L439 ceAbstractionStarter]: At program point L691(lines 676 694) the Hoare annotation is: false [2019-10-22 11:21:21,698 INFO L439 ceAbstractionStarter]: At program point L691-1(lines 676 694) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse6 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse7 (not (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)))) (.cse14 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32)))) (let ((.cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse3 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse4 (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv4294967295 32)) (_ bv0 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse12 (and .cse1 .cse6 .cse7 .cse14)) (.cse13 (= (_ bv0 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse9 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse10 (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse11 (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse8) .cse9) (and .cse2 .cse9 .cse10 .cse11 .cse12) (and .cse13 .cse1 .cse2 .cse5 .cse10 .cse6 .cse14 .cse11) (and .cse2 .cse5 .cse10 .cse11 .cse12) (and .cse13 .cse1 .cse2 .cse9 .cse10 .cse6 .cse14 .cse11)))) [2019-10-22 11:21:21,698 INFO L439 ceAbstractionStarter]: At program point L691-2(lines 676 694) the Hoare annotation is: false [2019-10-22 11:21:21,698 INFO L439 ceAbstractionStarter]: At program point L691-3(lines 676 694) the Hoare annotation is: false [2019-10-22 11:21:21,698 INFO L439 ceAbstractionStarter]: At program point L691-4(lines 676 694) the Hoare annotation is: false [2019-10-22 11:21:21,698 INFO L439 ceAbstractionStarter]: At program point L691-5(lines 676 694) the Hoare annotation is: false [2019-10-22 11:21:21,698 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 137) no Hoare annotation was computed. [2019-10-22 11:21:21,698 INFO L446 ceAbstractionStarter]: At program point L130-1(lines 130 137) the Hoare annotation is: true [2019-10-22 11:21:21,698 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:21:21,698 INFO L443 ceAbstractionStarter]: For program point L792(lines 792 796) no Hoare annotation was computed. [2019-10-22 11:21:21,698 INFO L443 ceAbstractionStarter]: For program point L726(lines 726 732) no Hoare annotation was computed. [2019-10-22 11:21:21,699 INFO L439 ceAbstractionStarter]: At program point L726-1(lines 726 732) the Hoare annotation is: (let ((.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse5 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (and .cse1 (and (= (_ bv0 32) ~pumpRunning~0) .cse5))) (.cse0 (and (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (and (= (_ bv1 32) ~pumpRunning~0) .cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32))))) (.cse4 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse2) (and .cse3 .cse4) (and (and .cse0 .cse1) .cse4)))) [2019-10-22 11:21:21,699 INFO L439 ceAbstractionStarter]: At program point L627(lines 620 630) the Hoare annotation is: (let ((.cse0 (and (and (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isHighWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (and (= (_ bv1 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 (_ bv0 32)))) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))))) (or (and .cse0 (= (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv4294967295 32)) (_ bv0 32))) (and (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) .cse0 (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv0 32))))) [2019-10-22 11:21:21,699 INFO L439 ceAbstractionStarter]: At program point L627-1(lines 620 630) the Hoare annotation is: false [2019-10-22 11:21:21,699 INFO L443 ceAbstractionStarter]: For program point L561(lines 561 569) no Hoare annotation was computed. [2019-10-22 11:21:21,699 INFO L439 ceAbstractionStarter]: At program point L627-2(lines 620 630) the Hoare annotation is: false [2019-10-22 11:21:21,699 INFO L443 ceAbstractionStarter]: For program point L561-1(lines 561 569) no Hoare annotation was computed. [2019-10-22 11:21:21,700 INFO L443 ceAbstractionStarter]: For program point L561-2(lines 561 569) no Hoare annotation was computed. [2019-10-22 11:21:21,700 INFO L443 ceAbstractionStarter]: For program point L561-3(lines 561 569) no Hoare annotation was computed. [2019-10-22 11:21:21,700 INFO L443 ceAbstractionStarter]: For program point L561-4(lines 561 569) no Hoare annotation was computed. [2019-10-22 11:21:21,700 INFO L443 ceAbstractionStarter]: For program point L561-5(lines 561 569) no Hoare annotation was computed. [2019-10-22 11:21:21,700 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 860) no Hoare annotation was computed. [2019-10-22 11:21:21,700 INFO L443 ceAbstractionStarter]: For program point L860(line 860) no Hoare annotation was computed. [2019-10-22 11:21:21,700 INFO L443 ceAbstractionStarter]: For program point L860-1(line 860) no Hoare annotation was computed. [2019-10-22 11:21:21,701 INFO L443 ceAbstractionStarter]: For program point L860-2(line 860) no Hoare annotation was computed. [2019-10-22 11:21:21,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:21 BoogieIcfgContainer [2019-10-22 11:21:21,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:21,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:21,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:21,731 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:21,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:06" (3/4) ... [2019-10-22 11:21:21,735 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:21,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:21:21,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-10-22 11:21:21,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:21:21,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 11:21:21,751 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:21:21,751 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:21:21,777 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) || (((~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32))) || (((~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32) && ((tmp == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32)) || (((~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32) && (((1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || ((((\result == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && (((1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32)) || (((\result == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && methaneLevelCritical == 0bv32) && tmp == 0bv32) [2019-10-22 11:21:21,778 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((methaneLevelCritical == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32)) || ((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32)) || ((((\result == 0bv32 && (~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) && tmp == 0bv32) [2019-10-22 11:21:21,778 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) || ((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32)) || ((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32)) || ((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) [2019-10-22 11:21:21,778 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) || ((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32)) || ((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32)) || ((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) [2019-10-22 11:21:21,778 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) || (~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ((((1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || (((~bvslt32(splverifierCounter, 4bv32) && (~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && tmp == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || (methaneLevelCritical == 0bv32 && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32))) || ((((((1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) [2019-10-22 11:21:21,779 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result == 0bv32 && 1bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || ((\result == 0bv32 && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32)) || (((((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || (((((((1bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) [2019-10-22 11:21:21,780 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || ((\result == 0bv32 && methaneLevelCritical == 0bv32) && ((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) [2019-10-22 11:21:21,780 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || (((\result == 0bv32 && methaneLevelCritical == 0bv32) && ((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) [2019-10-22 11:21:21,780 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((methaneLevelCritical == 0bv32 && (1bv32 == \result && ~bvslt32(splverifierCounter, 4bv32)) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) || (((1bv32 == \result && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32))) || (~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ((0bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((0bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) [2019-10-22 11:21:21,781 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 0bv32 && 1bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && tmp == 0bv32) || (((\result == 0bv32 && (((0bv32 == pumpRunning && !(2bv32 == \result)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) && tmp == 0bv32) [2019-10-22 11:21:21,781 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && tmp___0 == 0bv32) || ((((((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && tmp___0 == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32)) || ((((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && tmp == 0bv32)) || (((((((0bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || ((((~bvslt32(splverifierCounter, 4bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && tmp == 0bv32)) || (((((((0bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) [2019-10-22 11:21:21,782 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 0bv32 && 1bv32 == pumpRunning) && 1bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && tmp == 0bv32 [2019-10-22 11:21:21,826 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_730b6998-bb87-4fbb-bf2e-e60eb8db4d31/bin/utaipan/witness.graphml [2019-10-22 11:21:21,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:21,828 INFO L168 Benchmark]: Toolchain (without parser) took 17339.51 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 355.5 MB). Free memory was 951.0 MB in the beginning and 881.7 MB in the end (delta: 69.3 MB). Peak memory consumption was 424.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:21,828 INFO L168 Benchmark]: CDTParser took 0.40 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 11:21:21,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:21,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:21,829 INFO L168 Benchmark]: Boogie Preprocessor took 37.79 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:21,829 INFO L168 Benchmark]: RCFGBuilder took 855.88 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: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:21,829 INFO L168 Benchmark]: TraceAbstraction took 15704.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 223.9 MB). Free memory was 1.0 GB in the beginning and 903.0 MB in the end (delta: 132.7 MB). Peak memory consumption was 457.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:21,829 INFO L168 Benchmark]: Witness Printer took 95.63 ms. Allocated memory is still 1.4 GB. Free memory was 903.0 MB in the beginning and 881.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:21,831 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 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 581.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.04 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 37.79 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 855.88 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: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15704.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 223.9 MB). Free memory was 1.0 GB in the beginning and 903.0 MB in the end (delta: 132.7 MB). Peak memory consumption was 457.8 MB. Max. memory is 11.5 GB. * Witness Printer took 95.63 ms. Allocated memory is still 1.4 GB. Free memory was 903.0 MB in the beginning and 881.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 860]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 860]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 860]: 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: 832]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 676]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 832]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: (((methaneLevelCritical == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32)) || ((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32)) || ((((\result == 0bv32 && (~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) && tmp == 0bv32) - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: ((((~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) || (~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ((((1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || (((~bvslt32(splverifierCounter, 4bv32) && (~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && tmp == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || (methaneLevelCritical == 0bv32 && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32))) || ((((((1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: (((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || (((\result == 0bv32 && methaneLevelCritical == 0bv32) && ((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) - InvariantResult [Line: 676]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 676]: Loop Invariant Derived loop invariant: ((((((((((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && tmp___0 == 0bv32) || ((((((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && \result == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && tmp___0 == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32)) || ((((~bvslt32(splverifierCounter, 4bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && tmp == 0bv32)) || (((((((0bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || ((((~bvslt32(splverifierCounter, 4bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && tmp == 0bv32)) || (((((((0bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) - InvariantResult [Line: 631]: Loop Invariant Derived loop invariant: ((((((((\result == 0bv32 && 1bv32 == pumpRunning) && 1bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && tmp == 0bv32 - InvariantResult [Line: 676]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: (((methaneLevelCritical == 0bv32 && (1bv32 == \result && ~bvslt32(splverifierCounter, 4bv32)) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) || (((1bv32 == \result && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32))) || (~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ((0bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32))) || ((((0bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 631]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 676]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 832]: Loop Invariant Derived loop invariant: ((((((((\result == 0bv32 && 1bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && tmp == 0bv32) || (((\result == 0bv32 && (((0bv32 == pumpRunning && !(2bv32 == \result)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) && tmp == 0bv32) - InvariantResult [Line: 631]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 676]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: ((((((((((\result == 0bv32 && 1bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || ((\result == 0bv32 && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32)) || (((((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || (((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || (((((((1bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: ((((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) || ((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32)) || ((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32)) || ((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 924]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: ((((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && methaneLevelCritical == 0bv32) || ((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32)) || ((~bvslt32(splverifierCounter, 4bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32)) || ((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: (((((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || ((\result == 0bv32 && methaneLevelCritical == 0bv32) && ((~bvadd64(tmp___0, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) || (((~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32))) || (((~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32) && ((tmp == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32)) || (((~bvadd64(methaneLevelCritical, 4294967295bv32) == 0bv32 && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32) && (((1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || ((((\result == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && (((1bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32)) || (((\result == 0bv32 && ~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !(~bvadd64(waterLevel, 4294967294bv32) == 0bv32)) && methaneLevelCritical == 0bv32) && tmp == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Result: SAFE, OverallTime: 15.6s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.2s, HoareTripleCheckerStatistics: 2239 SDtfs, 4509 SDslu, 5642 SDs, 0 SdLazy, 984 SolverSat, 192 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1045 GetRequests, 969 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=438occurred in iteration=5, 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, 13 MinimizatonAttempts, 2917 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 186 NumberOfFragments, 1490 HoareAnnotationTreeSize, 45 FomulaSimplifications, 1944824 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 45 FomulaSimplificationsInter, 736076 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 516 NumberOfCodeBlocks, 516 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1004 ConstructedInterpolants, 0 QuantifiedInterpolants, 92380 SizeOfPredicates, 41 NumberOfNonLiveVariables, 2871 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 28 InterpolantComputations, 24 PerfectInterpolantSequences, 140/148 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...