./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product49.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_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 c3f15e5f0b48b2733d67e168986a8e79f37fa442 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 c3f15e5f0b48b2733d67e168986a8e79f37fa442 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:21:47,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:47,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:47,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:47,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:47,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:47,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:47,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:47,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:47,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:47,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:47,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:47,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:47,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:47,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:47,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:47,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:47,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:47,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:47,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:47,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:47,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:47,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:47,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:47,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:47,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:47,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:47,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:47,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:47,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:47,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:47,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:47,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:47,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:47,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:47,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:47,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:47,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:47,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:47,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:47,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:47,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:47,493 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:47,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:47,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:47,494 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:47,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:47,495 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:47,495 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:47,495 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:47,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:47,495 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:47,495 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:47,496 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:47,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:47,496 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:47,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:47,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:47,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:47,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:47,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:47,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:47,497 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:47,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:47,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:47,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:47,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:47,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:47,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:47,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:47,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:47,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:47,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:47,499 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:47,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:47,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:47,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:47,499 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_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 -> c3f15e5f0b48b2733d67e168986a8e79f37fa442 [2019-10-22 11:21:47,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:47,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:47,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:47,533 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:47,534 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:47,534 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2019-10-22 11:21:47,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data/b51701e61/57e41618fcd0482c97f8b3c50de8f11d/FLAG07728fb64 [2019-10-22 11:21:48,035 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:48,036 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2019-10-22 11:21:48,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data/b51701e61/57e41618fcd0482c97f8b3c50de8f11d/FLAG07728fb64 [2019-10-22 11:21:48,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data/b51701e61/57e41618fcd0482c97f8b3c50de8f11d [2019-10-22 11:21:48,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:48,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:48,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:48,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:48,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:48,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b10e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48, skipping insertion in model container [2019-10-22 11:21:48,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,415 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:48,458 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:48,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:48,825 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:48,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:48,924 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:48,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48 WrapperNode [2019-10-22 11:21:48,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:48,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:48,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:48,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:48,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:48,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:48,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:48,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:48,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:49,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:49,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:49,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:49,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:49,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:49,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:49,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:49,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:49,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:21:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:49,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:21:49,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:49,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:49,906 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:49,908 INFO L284 CfgBuilder]: Removed 170 assume(true) statements. [2019-10-22 11:21:49,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:49 BoogieIcfgContainer [2019-10-22 11:21:49,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:49,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:49,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:49,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:49,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:48" (1/3) ... [2019-10-22 11:21:49,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5d81e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:49, skipping insertion in model container [2019-10-22 11:21:49,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (2/3) ... [2019-10-22 11:21:49,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5d81e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:49, skipping insertion in model container [2019-10-22 11:21:49,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:49" (3/3) ... [2019-10-22 11:21:49,916 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2019-10-22 11:21:49,925 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:49,931 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:49,940 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:49,958 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:49,958 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:49,959 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:49,959 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:49,959 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:49,959 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:49,959 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:49,959 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:49,971 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2019-10-22 11:21:49,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:49,976 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:49,977 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 11:21:49,978 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,982 INFO L82 PathProgramCache]: Analyzing trace with hash -988495008, now seen corresponding path program 1 times [2019-10-22 11:21:49,988 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:49,989 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978559942] [2019-10-22 11:21:49,989 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,989 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,155 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 11:21:50,156 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978559942] [2019-10-22 11:21:50,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:50,157 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:50,157 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124727598] [2019-10-22 11:21:50,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:50,162 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:50,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:50,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:50,177 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2019-10-22 11:21:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:50,205 INFO L93 Difference]: Finished difference Result 245 states and 370 transitions. [2019-10-22 11:21:50,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:50,207 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:21:50,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:50,217 INFO L225 Difference]: With dead ends: 245 [2019-10-22 11:21:50,218 INFO L226 Difference]: Without dead ends: 122 [2019-10-22 11:21:50,221 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 11:21:50,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-22 11:21:50,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-22 11:21:50,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-22 11:21:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 177 transitions. [2019-10-22 11:21:50,254 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 177 transitions. Word has length 19 [2019-10-22 11:21:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,254 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 177 transitions. [2019-10-22 11:21:50,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:50,254 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 177 transitions. [2019-10-22 11:21:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:21:50,255 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,255 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:50,256 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1803446273, now seen corresponding path program 1 times [2019-10-22 11:21:50,256 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:50,256 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88164024] [2019-10-22 11:21:50,257 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,257 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,334 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 11:21:50,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88164024] [2019-10-22 11:21:50,334 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:50,335 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:50,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532175462] [2019-10-22 11:21:50,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:50,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:50,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:50,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:50,337 INFO L87 Difference]: Start difference. First operand 122 states and 177 transitions. Second operand 3 states. [2019-10-22 11:21:50,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:50,347 INFO L93 Difference]: Finished difference Result 122 states and 177 transitions. [2019-10-22 11:21:50,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:50,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-22 11:21:50,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:50,349 INFO L225 Difference]: With dead ends: 122 [2019-10-22 11:21:50,349 INFO L226 Difference]: Without dead ends: 51 [2019-10-22 11:21:50,350 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 11:21:50,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-22 11:21:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-10-22 11:21:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:21:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2019-10-22 11:21:50,355 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 20 [2019-10-22 11:21:50,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,355 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2019-10-22 11:21:50,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:50,355 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2019-10-22 11:21:50,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:21:50,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,356 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 11:21:50,356 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,357 INFO L82 PathProgramCache]: Analyzing trace with hash -842309608, now seen corresponding path program 1 times [2019-10-22 11:21:50,357 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:50,357 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511903342] [2019-10-22 11:21:50,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,455 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 11:21:50,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511903342] [2019-10-22 11:21:50,456 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:50,456 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:50,456 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925600601] [2019-10-22 11:21:50,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:50,457 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:50,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:50,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:50,457 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand 6 states. [2019-10-22 11:21:50,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:50,565 INFO L93 Difference]: Finished difference Result 95 states and 139 transitions. [2019-10-22 11:21:50,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:50,576 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-10-22 11:21:50,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:50,577 INFO L225 Difference]: With dead ends: 95 [2019-10-22 11:21:50,577 INFO L226 Difference]: Without dead ends: 51 [2019-10-22 11:21:50,578 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 11:21:50,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-22 11:21:50,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-10-22 11:21:50,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:21:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2019-10-22 11:21:50,586 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 26 [2019-10-22 11:21:50,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,587 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2019-10-22 11:21:50,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:50,587 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2019-10-22 11:21:50,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:50,592 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,592 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] [2019-10-22 11:21:50,593 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,593 INFO L82 PathProgramCache]: Analyzing trace with hash 674402038, now seen corresponding path program 1 times [2019-10-22 11:21:50,593 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:50,593 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888708250] [2019-10-22 11:21:50,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,594 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,648 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 11:21:50,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888708250] [2019-10-22 11:21:50,648 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:50,648 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:50,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409439763] [2019-10-22 11:21:50,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:50,649 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:50,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:50,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:50,650 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand 3 states. [2019-10-22 11:21:50,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:50,702 INFO L93 Difference]: Finished difference Result 119 states and 171 transitions. [2019-10-22 11:21:50,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:50,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-22 11:21:50,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:50,703 INFO L225 Difference]: With dead ends: 119 [2019-10-22 11:21:50,703 INFO L226 Difference]: Without dead ends: 75 [2019-10-22 11:21:50,704 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 11:21:50,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-10-22 11:21:50,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2019-10-22 11:21:50,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-22 11:21:50,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2019-10-22 11:21:50,718 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 28 [2019-10-22 11:21:50,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,718 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2019-10-22 11:21:50,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:50,718 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2019-10-22 11:21:50,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:50,719 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,719 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:50,719 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,720 INFO L82 PathProgramCache]: Analyzing trace with hash 950754951, now seen corresponding path program 1 times [2019-10-22 11:21:50,720 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:50,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266715045] [2019-10-22 11:21:50,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,841 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 11:21:50,841 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266715045] [2019-10-22 11:21:50,841 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:50,841 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:21:50,841 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199489871] [2019-10-22 11:21:50,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:50,842 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:50,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:50,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:50,842 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 6 states. [2019-10-22 11:21:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:51,011 INFO L93 Difference]: Finished difference Result 263 states and 373 transitions. [2019-10-22 11:21:51,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:51,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-10-22 11:21:51,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:51,014 INFO L225 Difference]: With dead ends: 263 [2019-10-22 11:21:51,014 INFO L226 Difference]: Without dead ends: 197 [2019-10-22 11:21:51,015 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:21:51,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-10-22 11:21:51,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 77. [2019-10-22 11:21:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-22 11:21:51,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 106 transitions. [2019-10-22 11:21:51,040 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 106 transitions. Word has length 34 [2019-10-22 11:21:51,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:51,040 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 106 transitions. [2019-10-22 11:21:51,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:51,041 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 106 transitions. [2019-10-22 11:21:51,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:51,041 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:51,042 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:51,042 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:51,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:51,042 INFO L82 PathProgramCache]: Analyzing trace with hash 249690373, now seen corresponding path program 1 times [2019-10-22 11:21:51,043 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:51,043 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206363693] [2019-10-22 11:21:51,043 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,043 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,128 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 11:21:51,128 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206363693] [2019-10-22 11:21:51,129 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:51,129 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:51,129 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004540092] [2019-10-22 11:21:51,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:51,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:51,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:51,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:51,130 INFO L87 Difference]: Start difference. First operand 77 states and 106 transitions. Second operand 5 states. [2019-10-22 11:21:51,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:51,197 INFO L93 Difference]: Finished difference Result 202 states and 278 transitions. [2019-10-22 11:21:51,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:51,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:21:51,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:51,199 INFO L225 Difference]: With dead ends: 202 [2019-10-22 11:21:51,199 INFO L226 Difference]: Without dead ends: 132 [2019-10-22 11:21:51,200 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 11:21:51,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-22 11:21:51,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 83. [2019-10-22 11:21:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-10-22 11:21:51,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 112 transitions. [2019-10-22 11:21:51,212 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 112 transitions. Word has length 34 [2019-10-22 11:21:51,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:51,213 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 112 transitions. [2019-10-22 11:21:51,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:51,213 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 112 transitions. [2019-10-22 11:21:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:51,214 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:51,214 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:51,214 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:51,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:51,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1183154082, now seen corresponding path program 1 times [2019-10-22 11:21:51,215 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:51,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807926986] [2019-10-22 11:21:51,215 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,215 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,263 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 11:21:51,264 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807926986] [2019-10-22 11:21:51,264 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:51,264 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:51,264 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196399145] [2019-10-22 11:21:51,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:51,265 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:51,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:51,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:51,265 INFO L87 Difference]: Start difference. First operand 83 states and 112 transitions. Second operand 5 states. [2019-10-22 11:21:51,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:51,365 INFO L93 Difference]: Finished difference Result 282 states and 383 transitions. [2019-10-22 11:21:51,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:51,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:21:51,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:51,366 INFO L225 Difference]: With dead ends: 282 [2019-10-22 11:21:51,366 INFO L226 Difference]: Without dead ends: 206 [2019-10-22 11:21:51,367 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 11:21:51,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2019-10-22 11:21:51,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 82. [2019-10-22 11:21:51,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-10-22 11:21:51,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 109 transitions. [2019-10-22 11:21:51,391 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 109 transitions. Word has length 34 [2019-10-22 11:21:51,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:51,391 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 109 transitions. [2019-10-22 11:21:51,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:51,391 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 109 transitions. [2019-10-22 11:21:51,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:51,395 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:51,395 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:51,396 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:51,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:51,396 INFO L82 PathProgramCache]: Analyzing trace with hash 363948937, now seen corresponding path program 1 times [2019-10-22 11:21:51,396 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:51,397 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253539417] [2019-10-22 11:21:51,397 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,397 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,445 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 11:21:51,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253539417] [2019-10-22 11:21:51,445 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:51,446 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:51,446 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233708019] [2019-10-22 11:21:51,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:51,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:51,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:51,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:51,447 INFO L87 Difference]: Start difference. First operand 82 states and 109 transitions. Second operand 3 states. [2019-10-22 11:21:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:51,496 INFO L93 Difference]: Finished difference Result 185 states and 247 transitions. [2019-10-22 11:21:51,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:51,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-22 11:21:51,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:51,497 INFO L225 Difference]: With dead ends: 185 [2019-10-22 11:21:51,498 INFO L226 Difference]: Without dead ends: 110 [2019-10-22 11:21:51,498 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:51,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-22 11:21:51,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-22 11:21:51,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-22 11:21:51,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 143 transitions. [2019-10-22 11:21:51,515 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 143 transitions. Word has length 34 [2019-10-22 11:21:51,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:51,517 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 143 transitions. [2019-10-22 11:21:51,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 143 transitions. [2019-10-22 11:21:51,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 11:21:51,518 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:51,518 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:51,518 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:51,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:51,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1031997239, now seen corresponding path program 1 times [2019-10-22 11:21:51,519 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:51,519 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355398449] [2019-10-22 11:21:51,519 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,519 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,621 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 11:21:51,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355398449] [2019-10-22 11:21:51,621 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:51,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:21:51,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695958383] [2019-10-22 11:21:51,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:51,622 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:51,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:51,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:51,622 INFO L87 Difference]: Start difference. First operand 110 states and 143 transitions. Second operand 6 states. [2019-10-22 11:21:51,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:51,807 INFO L93 Difference]: Finished difference Result 413 states and 551 transitions. [2019-10-22 11:21:51,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:51,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 11:21:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:51,809 INFO L225 Difference]: With dead ends: 413 [2019-10-22 11:21:51,809 INFO L226 Difference]: Without dead ends: 338 [2019-10-22 11:21:51,809 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:51,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-10-22 11:21:51,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 155. [2019-10-22 11:21:51,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-22 11:21:51,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 199 transitions. [2019-10-22 11:21:51,833 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 199 transitions. Word has length 35 [2019-10-22 11:21:51,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:51,834 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 199 transitions. [2019-10-22 11:21:51,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 199 transitions. [2019-10-22 11:21:51,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-22 11:21:51,834 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:51,835 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:51,835 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:51,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:51,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1199602114, now seen corresponding path program 1 times [2019-10-22 11:21:51,835 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:51,835 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411485852] [2019-10-22 11:21:51,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,907 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:51,907 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411485852] [2019-10-22 11:21:51,907 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132754242] [2019-10-22 11:21:51,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:21:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:52,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:52,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:52,086 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:52,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1202387396] [2019-10-22 11:21:52,125 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 59 [2019-10-22 11:21:52,174 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:21:52,174 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:21:52,570 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:52,571 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 11:21:52,575 INFO L168 Benchmark]: Toolchain (without parser) took 4179.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.5 MB in the beginning and 964.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 113.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,575 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:52,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.81 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,581 INFO L168 Benchmark]: Boogie Preprocessor took 45.25 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 11:21:52,581 INFO L168 Benchmark]: RCFGBuilder took 881.12 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: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,581 INFO L168 Benchmark]: TraceAbstraction took 2662.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 964.3 MB in the end (delta: 80.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,584 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 525.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.81 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 881.12 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: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2662.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 964.3 MB in the end (delta: 80.6 MB). Peak memory consumption was 80.6 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 11:21:54,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:54,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:54,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:54,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:54,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:54,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:54,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:54,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:54,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:54,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:54,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:54,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:54,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:54,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:54,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:54,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:54,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:54,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:54,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:54,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:54,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:54,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:54,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:54,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:54,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:54,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:54,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:54,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:54,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:54,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:54,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:54,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:54,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:54,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:54,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:54,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:54,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:54,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:54,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:54,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:54,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:54,672 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:54,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:54,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:54,677 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:54,677 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:54,677 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:54,677 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:54,677 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:54,678 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:54,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:54,678 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:54,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:54,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:54,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:54,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:54,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:54,679 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:54,679 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:54,680 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:54,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:54,680 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:54,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:54,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:54,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:54,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:54,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:54,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:54,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:54,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:54,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:54,681 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:54,682 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:54,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:54,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:54,682 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_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 -> c3f15e5f0b48b2733d67e168986a8e79f37fa442 [2019-10-22 11:21:54,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:54,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:54,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:54,740 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:54,740 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:54,741 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2019-10-22 11:21:54,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data/d26e375ab/7fbed459daa84176a9f07d2bd1607093/FLAG87e2b2188 [2019-10-22 11:21:55,227 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:55,228 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2019-10-22 11:21:55,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data/d26e375ab/7fbed459daa84176a9f07d2bd1607093/FLAG87e2b2188 [2019-10-22 11:21:55,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/data/d26e375ab/7fbed459daa84176a9f07d2bd1607093 [2019-10-22 11:21:55,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:55,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:55,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:55,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:55,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:55,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500a7707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55, skipping insertion in model container [2019-10-22 11:21:55,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,279 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:55,316 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:55,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:55,713 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:55,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:55,841 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:55,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55 WrapperNode [2019-10-22 11:21:55,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:55,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:55,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:55,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:55,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:55,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:55,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:55,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:55,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... [2019-10-22 11:21:55,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:55,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:55,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:55,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:55,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:21:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:21:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:56,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:56,883 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:56,883 INFO L284 CfgBuilder]: Removed 170 assume(true) statements. [2019-10-22 11:21:56,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:56 BoogieIcfgContainer [2019-10-22 11:21:56,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:56,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:56,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:56,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:56,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:55" (1/3) ... [2019-10-22 11:21:56,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4651b2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:56, skipping insertion in model container [2019-10-22 11:21:56,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:55" (2/3) ... [2019-10-22 11:21:56,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4651b2dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:56, skipping insertion in model container [2019-10-22 11:21:56,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:56" (3/3) ... [2019-10-22 11:21:56,891 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2019-10-22 11:21:56,900 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:56,908 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:56,918 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:56,941 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:56,941 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:56,941 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:56,941 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:56,942 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:56,942 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:56,942 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:56,942 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:56,957 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2019-10-22 11:21:56,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:56,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:56,964 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 11:21:56,966 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:56,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:56,972 INFO L82 PathProgramCache]: Analyzing trace with hash -988495008, now seen corresponding path program 1 times [2019-10-22 11:21:56,982 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:56,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [989963661] [2019-10-22 11:21:56,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:21:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:57,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:21:57,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:57,237 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:57,242 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 11:21:57,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [989963661] [2019-10-22 11:21:57,250 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:57,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:21:57,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728013761] [2019-10-22 11:21:57,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:57,255 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:57,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:57,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:57,270 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2019-10-22 11:21:57,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:57,304 INFO L93 Difference]: Finished difference Result 245 states and 370 transitions. [2019-10-22 11:21:57,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:57,305 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:21:57,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:57,317 INFO L225 Difference]: With dead ends: 245 [2019-10-22 11:21:57,317 INFO L226 Difference]: Without dead ends: 122 [2019-10-22 11:21:57,320 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:57,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-22 11:21:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-22 11:21:57,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-22 11:21:57,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 177 transitions. [2019-10-22 11:21:57,363 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 177 transitions. Word has length 19 [2019-10-22 11:21:57,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:57,363 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 177 transitions. [2019-10-22 11:21:57,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 177 transitions. [2019-10-22 11:21:57,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:21:57,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:57,365 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:57,566 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:57,566 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:57,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:57,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1803446273, now seen corresponding path program 1 times [2019-10-22 11:21:57,567 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:57,568 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1330707039] [2019-10-22 11:21:57,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:21:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:57,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:57,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:57,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:57,725 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:57,734 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 11:21:57,734 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1330707039] [2019-10-22 11:21:57,734 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:57,734 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:57,734 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994730919] [2019-10-22 11:21:57,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:57,736 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:57,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:57,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:57,737 INFO L87 Difference]: Start difference. First operand 122 states and 177 transitions. Second operand 4 states. [2019-10-22 11:21:57,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:57,768 INFO L93 Difference]: Finished difference Result 237 states and 347 transitions. [2019-10-22 11:21:57,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:57,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 11:21:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:57,770 INFO L225 Difference]: With dead ends: 237 [2019-10-22 11:21:57,770 INFO L226 Difference]: Without dead ends: 122 [2019-10-22 11:21:57,771 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-22 11:21:57,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-22 11:21:57,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-22 11:21:57,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 174 transitions. [2019-10-22 11:21:57,785 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 174 transitions. Word has length 20 [2019-10-22 11:21:57,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:57,786 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 174 transitions. [2019-10-22 11:21:57,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:57,786 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 174 transitions. [2019-10-22 11:21:57,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:21:57,787 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:57,787 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] [2019-10-22 11:21:57,988 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:57,988 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:57,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:57,989 INFO L82 PathProgramCache]: Analyzing trace with hash 625169055, now seen corresponding path program 1 times [2019-10-22 11:21:57,990 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:57,990 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1194536139] [2019-10-22 11:21:57,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:21:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:58,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:58,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:58,143 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 11:21:58,143 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:58,145 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 11:21:58,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1194536139] [2019-10-22 11:21:58,146 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:58,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:21:58,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531009278] [2019-10-22 11:21:58,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:58,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:58,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:58,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:58,147 INFO L87 Difference]: Start difference. First operand 122 states and 174 transitions. Second operand 3 states. [2019-10-22 11:21:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:58,279 INFO L93 Difference]: Finished difference Result 292 states and 415 transitions. [2019-10-22 11:21:58,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:58,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 11:21:58,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:58,281 INFO L225 Difference]: With dead ends: 292 [2019-10-22 11:21:58,281 INFO L226 Difference]: Without dead ends: 177 [2019-10-22 11:21:58,282 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 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 11:21:58,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-10-22 11:21:58,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 171. [2019-10-22 11:21:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-10-22 11:21:58,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 236 transitions. [2019-10-22 11:21:58,300 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 236 transitions. Word has length 22 [2019-10-22 11:21:58,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:58,301 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 236 transitions. [2019-10-22 11:21:58,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:58,301 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 236 transitions. [2019-10-22 11:21:58,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:58,302 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:58,302 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] [2019-10-22 11:21:58,503 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:58,503 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:58,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:58,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1925559664, now seen corresponding path program 1 times [2019-10-22 11:21:58,504 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:58,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [133375211] [2019-10-22 11:21:58,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:21:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:58,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:58,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:58,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:58,665 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:58,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [133375211] [2019-10-22 11:21:58,693 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:58,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:21:58,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724723973] [2019-10-22 11:21:58,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:58,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:58,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:58,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:58,695 INFO L87 Difference]: Start difference. First operand 171 states and 236 transitions. Second operand 6 states. [2019-10-22 11:21:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:58,869 INFO L93 Difference]: Finished difference Result 639 states and 881 transitions. [2019-10-22 11:21:58,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:58,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-10-22 11:21:58,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:58,872 INFO L225 Difference]: With dead ends: 639 [2019-10-22 11:21:58,872 INFO L226 Difference]: Without dead ends: 475 [2019-10-22 11:21:58,873 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 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 11:21:58,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2019-10-22 11:21:58,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 183. [2019-10-22 11:21:58,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-10-22 11:21:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 248 transitions. [2019-10-22 11:21:58,910 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 248 transitions. Word has length 28 [2019-10-22 11:21:58,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:58,911 INFO L462 AbstractCegarLoop]: Abstraction has 183 states and 248 transitions. [2019-10-22 11:21:58,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:58,911 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2019-10-22 11:21:58,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:58,912 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:58,912 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] [2019-10-22 11:21:59,115 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:59,115 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:59,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:59,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1224495086, now seen corresponding path program 1 times [2019-10-22 11:21:59,116 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:59,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1033011210] [2019-10-22 11:21:59,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:21:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:59,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:59,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:59,269 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 11:21:59,270 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:59,276 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 11:21:59,277 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1033011210] [2019-10-22 11:21:59,278 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:59,278 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:59,278 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719976230] [2019-10-22 11:21:59,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:59,279 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:59,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:59,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:59,279 INFO L87 Difference]: Start difference. First operand 183 states and 248 transitions. Second operand 5 states. [2019-10-22 11:21:59,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:59,474 INFO L93 Difference]: Finished difference Result 490 states and 652 transitions. [2019-10-22 11:21:59,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:59,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 11:21:59,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:59,477 INFO L225 Difference]: With dead ends: 490 [2019-10-22 11:21:59,477 INFO L226 Difference]: Without dead ends: 314 [2019-10-22 11:21:59,478 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 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 11:21:59,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-10-22 11:21:59,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 201. [2019-10-22 11:21:59,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-10-22 11:21:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 266 transitions. [2019-10-22 11:21:59,542 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 266 transitions. Word has length 28 [2019-10-22 11:21:59,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:59,542 INFO L462 AbstractCegarLoop]: Abstraction has 201 states and 266 transitions. [2019-10-22 11:21:59,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:59,542 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 266 transitions. [2019-10-22 11:21:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:59,543 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:59,543 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] [2019-10-22 11:21:59,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:59,744 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:59,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:59,744 INFO L82 PathProgramCache]: Analyzing trace with hash -2137008501, now seen corresponding path program 1 times [2019-10-22 11:21:59,745 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:59,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2080823669] [2019-10-22 11:21:59,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:21:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:59,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:21:59,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:59,916 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 11:21:59,917 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:59,920 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 11:21:59,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2080823669] [2019-10-22 11:21:59,920 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:59,921 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:21:59,921 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731619768] [2019-10-22 11:21:59,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:59,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:59,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:59,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:59,922 INFO L87 Difference]: Start difference. First operand 201 states and 266 transitions. Second operand 5 states. [2019-10-22 11:22:00,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:00,219 INFO L93 Difference]: Finished difference Result 696 states and 911 transitions. [2019-10-22 11:22:00,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:22:00,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 11:22:00,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:00,222 INFO L225 Difference]: With dead ends: 696 [2019-10-22 11:22:00,222 INFO L226 Difference]: Without dead ends: 502 [2019-10-22 11:22:00,223 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 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 11:22:00,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2019-10-22 11:22:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 198. [2019-10-22 11:22:00,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-10-22 11:22:00,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 257 transitions. [2019-10-22 11:22:00,250 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 257 transitions. Word has length 28 [2019-10-22 11:22:00,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:00,251 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 257 transitions. [2019-10-22 11:22:00,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:00,251 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 257 transitions. [2019-10-22 11:22:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:22:00,253 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:00,253 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] [2019-10-22 11:22:00,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:00,454 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:00,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:00,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1338753650, now seen corresponding path program 1 times [2019-10-22 11:22:00,454 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:00,454 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1063225300] [2019-10-22 11:22:00,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:22:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:00,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:00,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:00,677 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 11:22:00,677 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:00,689 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 11:22:00,690 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1063225300] [2019-10-22 11:22:00,690 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:00,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:22:00,690 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002059050] [2019-10-22 11:22:00,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:00,691 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:00,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:00,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:00,691 INFO L87 Difference]: Start difference. First operand 198 states and 257 transitions. Second operand 4 states. [2019-10-22 11:22:00,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:00,702 INFO L93 Difference]: Finished difference Result 198 states and 257 transitions. [2019-10-22 11:22:00,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:00,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-22 11:22:00,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:00,704 INFO L225 Difference]: With dead ends: 198 [2019-10-22 11:22:00,704 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 11:22:00,704 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 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 11:22:00,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 11:22:00,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-10-22 11:22:00,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-10-22 11:22:00,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 109 transitions. [2019-10-22 11:22:00,713 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 109 transitions. Word has length 28 [2019-10-22 11:22:00,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:00,713 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 109 transitions. [2019-10-22 11:22:00,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:00,713 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 109 transitions. [2019-10-22 11:22:00,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:22:00,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:00,714 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:00,914 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:00,915 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:00,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:00,915 INFO L82 PathProgramCache]: Analyzing trace with hash 363948937, now seen corresponding path program 1 times [2019-10-22 11:22:00,915 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:00,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [955888995] [2019-10-22 11:22:00,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:22:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:01,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:01,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:01,121 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 11:22:01,122 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:01,130 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 11:22:01,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [955888995] [2019-10-22 11:22:01,131 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:01,131 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:22:01,131 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723664663] [2019-10-22 11:22:01,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:01,132 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:01,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:01,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:01,135 INFO L87 Difference]: Start difference. First operand 82 states and 109 transitions. Second operand 4 states. [2019-10-22 11:22:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:01,193 INFO L93 Difference]: Finished difference Result 246 states and 331 transitions. [2019-10-22 11:22:01,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:01,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-10-22 11:22:01,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:01,194 INFO L225 Difference]: With dead ends: 246 [2019-10-22 11:22:01,195 INFO L226 Difference]: Without dead ends: 171 [2019-10-22 11:22:01,195 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 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 11:22:01,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-10-22 11:22:01,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 141. [2019-10-22 11:22:01,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-10-22 11:22:01,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 188 transitions. [2019-10-22 11:22:01,213 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 188 transitions. Word has length 34 [2019-10-22 11:22:01,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:01,214 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 188 transitions. [2019-10-22 11:22:01,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:01,214 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 188 transitions. [2019-10-22 11:22:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 11:22:01,215 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:01,215 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:01,415 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:01,416 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:01,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:01,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1031997239, now seen corresponding path program 1 times [2019-10-22 11:22:01,417 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:01,417 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [644676061] [2019-10-22 11:22:01,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:22:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:01,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:01,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:01,563 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 11:22:01,563 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:01,567 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 11:22:01,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [644676061] [2019-10-22 11:22:01,568 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:01,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:01,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587989505] [2019-10-22 11:22:01,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:01,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:01,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:01,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:01,569 INFO L87 Difference]: Start difference. First operand 141 states and 188 transitions. Second operand 6 states. [2019-10-22 11:22:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:01,950 INFO L93 Difference]: Finished difference Result 687 states and 926 transitions. [2019-10-22 11:22:01,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:22:01,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 11:22:01,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:01,952 INFO L225 Difference]: With dead ends: 687 [2019-10-22 11:22:01,953 INFO L226 Difference]: Without dead ends: 553 [2019-10-22 11:22:01,953 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:22:01,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2019-10-22 11:22:01,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 251. [2019-10-22 11:22:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-10-22 11:22:01,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 330 transitions. [2019-10-22 11:22:01,976 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 330 transitions. Word has length 35 [2019-10-22 11:22:01,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:01,976 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 330 transitions. [2019-10-22 11:22:01,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 330 transitions. [2019-10-22 11:22:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-22 11:22:01,977 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:01,977 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:02,178 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:02,178 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:02,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:02,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1199602114, now seen corresponding path program 1 times [2019-10-22 11:22:02,179 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:02,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [270302442] [2019-10-22 11:22:02,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:22:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:02,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:02,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:02,333 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:02,333 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:02,359 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [270302442] [2019-10-22 11:22:02,359 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469438313] [2019-10-22 11:22:02,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:02,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:02,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:02,461 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:02,461 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:02,469 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:02,469 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:22:02,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2019-10-22 11:22:02,470 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297450915] [2019-10-22 11:22:02,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:22:02,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:02,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:22:02,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:02,471 INFO L87 Difference]: Start difference. First operand 251 states and 330 transitions. Second operand 8 states. [2019-10-22 11:22:02,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:02,791 INFO L93 Difference]: Finished difference Result 631 states and 854 transitions. [2019-10-22 11:22:02,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:22:02,792 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2019-10-22 11:22:02,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:02,793 INFO L225 Difference]: With dead ends: 631 [2019-10-22 11:22:02,793 INFO L226 Difference]: Without dead ends: 387 [2019-10-22 11:22:02,794 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:22:02,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-10-22 11:22:02,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 236. [2019-10-22 11:22:02,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-10-22 11:22:02,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 302 transitions. [2019-10-22 11:22:02,822 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 302 transitions. Word has length 58 [2019-10-22 11:22:02,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:02,822 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 302 transitions. [2019-10-22 11:22:02,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:22:02,822 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 302 transitions. [2019-10-22 11:22:02,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-22 11:22:02,824 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:02,825 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:03,225 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:03,225 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:03,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:03,226 INFO L82 PathProgramCache]: Analyzing trace with hash -421938380, now seen corresponding path program 1 times [2019-10-22 11:22:03,226 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:03,226 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [413694193] [2019-10-22 11:22:03,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/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 11:22:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:03,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:03,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:03,425 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:22:03,425 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:22:03,434 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [413694193] [2019-10-22 11:22:03,434 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:03,434 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:03,434 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969419188] [2019-10-22 11:22:03,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:03,435 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:03,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:03,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:03,435 INFO L87 Difference]: Start difference. First operand 236 states and 302 transitions. Second operand 5 states. [2019-10-22 11:22:03,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:03,494 INFO L93 Difference]: Finished difference Result 584 states and 758 transitions. [2019-10-22 11:22:03,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:03,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2019-10-22 11:22:03,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:03,496 INFO L225 Difference]: With dead ends: 584 [2019-10-22 11:22:03,496 INFO L226 Difference]: Without dead ends: 355 [2019-10-22 11:22:03,497 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 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 11:22:03,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-22 11:22:03,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 245. [2019-10-22 11:22:03,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-10-22 11:22:03,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 311 transitions. [2019-10-22 11:22:03,517 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 311 transitions. Word has length 103 [2019-10-22 11:22:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:03,517 INFO L462 AbstractCegarLoop]: Abstraction has 245 states and 311 transitions. [2019-10-22 11:22:03,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 311 transitions. [2019-10-22 11:22:03,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-22 11:22:03,518 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:03,518 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:03,719 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:03,719 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:03,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:03,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1629045618, now seen corresponding path program 1 times [2019-10-22 11:22:03,720 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:03,720 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1616087816] [2019-10-22 11:22:03,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:03,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:22:03,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:03,900 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:03,942 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1616087816] [2019-10-22 11:22:03,943 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561255992] [2019-10-22 11:22:03,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:04,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:22:04,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:22:04,111 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:22:04,206 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:22:04,206 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7, 8] total 18 [2019-10-22 11:22:04,206 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287636033] [2019-10-22 11:22:04,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:22:04,208 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:04,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:22:04,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2019-10-22 11:22:04,210 INFO L87 Difference]: Start difference. First operand 245 states and 311 transitions. Second operand 8 states. [2019-10-22 11:22:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:04,645 INFO L93 Difference]: Finished difference Result 1022 states and 1304 transitions. [2019-10-22 11:22:04,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-22 11:22:04,645 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-22 11:22:04,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:04,648 INFO L225 Difference]: With dead ends: 1022 [2019-10-22 11:22:04,648 INFO L226 Difference]: Without dead ends: 784 [2019-10-22 11:22:04,648 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2019-10-22 11:22:04,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2019-10-22 11:22:04,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 393. [2019-10-22 11:22:04,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2019-10-22 11:22:04,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 499 transitions. [2019-10-22 11:22:04,691 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 499 transitions. Word has length 103 [2019-10-22 11:22:04,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:04,691 INFO L462 AbstractCegarLoop]: Abstraction has 393 states and 499 transitions. [2019-10-22 11:22:04,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:22:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 499 transitions. [2019-10-22 11:22:04,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-22 11:22:04,693 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:04,694 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:05,094 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:05,094 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:05,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:05,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1240299689, now seen corresponding path program 1 times [2019-10-22 11:22:05,095 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:05,095 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [374145682] [2019-10-22 11:22:05,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:05,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:05,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:05,244 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:22:05,244 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:05,275 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:22:05,275 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [374145682] [2019-10-22 11:22:05,275 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:05,275 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:22:05,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15238360] [2019-10-22 11:22:05,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:22:05,276 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:05,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:22:05,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:05,277 INFO L87 Difference]: Start difference. First operand 393 states and 499 transitions. Second operand 8 states. [2019-10-22 11:22:05,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:05,588 INFO L93 Difference]: Finished difference Result 918 states and 1173 transitions. [2019-10-22 11:22:05,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:22:05,589 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2019-10-22 11:22:05,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:05,591 INFO L225 Difference]: With dead ends: 918 [2019-10-22 11:22:05,591 INFO L226 Difference]: Without dead ends: 532 [2019-10-22 11:22:05,592 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 204 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 11:22:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2019-10-22 11:22:05,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 393. [2019-10-22 11:22:05,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2019-10-22 11:22:05,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 493 transitions. [2019-10-22 11:22:05,648 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 493 transitions. Word has length 105 [2019-10-22 11:22:05,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:05,648 INFO L462 AbstractCegarLoop]: Abstraction has 393 states and 493 transitions. [2019-10-22 11:22:05,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:22:05,649 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 493 transitions. [2019-10-22 11:22:05,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-22 11:22:05,650 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:05,650 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:05,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:05,851 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:05,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:05,851 INFO L82 PathProgramCache]: Analyzing trace with hash 582911313, now seen corresponding path program 1 times [2019-10-22 11:22:05,851 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:05,851 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1066056250] [2019-10-22 11:22:05,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:05,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:22:05,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:06,034 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:06,034 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:06,073 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:06,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1066056250] [2019-10-22 11:22:06,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376879382] [2019-10-22 11:22:06,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:06,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:22:06,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:06,197 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:06,208 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:22:06,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7] total 9 [2019-10-22 11:22:06,209 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740630850] [2019-10-22 11:22:06,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:22:06,209 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:06,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:22:06,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:06,210 INFO L87 Difference]: Start difference. First operand 393 states and 493 transitions. Second operand 9 states. [2019-10-22 11:22:06,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:06,711 INFO L93 Difference]: Finished difference Result 929 states and 1175 transitions. [2019-10-22 11:22:06,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:22:06,711 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2019-10-22 11:22:06,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:06,713 INFO L225 Difference]: With dead ends: 929 [2019-10-22 11:22:06,713 INFO L226 Difference]: Without dead ends: 631 [2019-10-22 11:22:06,714 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:22:06,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-10-22 11:22:06,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 451. [2019-10-22 11:22:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2019-10-22 11:22:06,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 566 transitions. [2019-10-22 11:22:06,757 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 566 transitions. Word has length 106 [2019-10-22 11:22:06,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:06,757 INFO L462 AbstractCegarLoop]: Abstraction has 451 states and 566 transitions. [2019-10-22 11:22:06,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:22:06,757 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 566 transitions. [2019-10-22 11:22:06,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-22 11:22:06,761 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:06,761 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:07,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:07,162 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:07,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:07,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1586948234, now seen corresponding path program 1 times [2019-10-22 11:22:07,163 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:07,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [116333756] [2019-10-22 11:22:07,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:07,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:07,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:22:07,567 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:07,628 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:22:07,628 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [116333756] [2019-10-22 11:22:07,628 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324577801] [2019-10-22 11:22:07,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:07,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 11:22:07,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 71 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-22 11:22:07,840 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:07,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-22 11:22:07,905 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:22:07,905 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 7] total 15 [2019-10-22 11:22:07,905 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543133571] [2019-10-22 11:22:07,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:07,908 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:07,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:07,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:22:07,908 INFO L87 Difference]: Start difference. First operand 451 states and 566 transitions. Second operand 5 states. [2019-10-22 11:22:08,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:08,225 INFO L93 Difference]: Finished difference Result 927 states and 1162 transitions. [2019-10-22 11:22:08,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:08,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2019-10-22 11:22:08,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:08,228 INFO L225 Difference]: With dead ends: 927 [2019-10-22 11:22:08,228 INFO L226 Difference]: Without dead ends: 565 [2019-10-22 11:22:08,229 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 413 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:22:08,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2019-10-22 11:22:08,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 397. [2019-10-22 11:22:08,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-22 11:22:08,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 496 transitions. [2019-10-22 11:22:08,274 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 496 transitions. Word has length 108 [2019-10-22 11:22:08,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:08,275 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 496 transitions. [2019-10-22 11:22:08,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:08,275 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 496 transitions. [2019-10-22 11:22:08,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-22 11:22:08,276 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:08,276 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:08,677 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:08,677 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:08,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:08,677 INFO L82 PathProgramCache]: Analyzing trace with hash -907675980, now seen corresponding path program 1 times [2019-10-22 11:22:08,678 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:08,678 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1153157295] [2019-10-22 11:22:08,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:08,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:08,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:22:08,853 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:22:08,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1153157295] [2019-10-22 11:22:08,873 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:08,873 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:22:08,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078500554] [2019-10-22 11:22:08,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:22:08,873 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:08,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:22:08,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:08,874 INFO L87 Difference]: Start difference. First operand 397 states and 496 transitions. Second operand 8 states. [2019-10-22 11:22:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:08,932 INFO L93 Difference]: Finished difference Result 601 states and 745 transitions. [2019-10-22 11:22:08,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:08,932 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-10-22 11:22:08,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:08,932 INFO L225 Difference]: With dead ends: 601 [2019-10-22 11:22:08,932 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:22:08,933 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 210 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 11:22:08,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:22:08,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:22:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:22:08,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:22:08,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2019-10-22 11:22:08,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:08,934 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:22:08,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:22:08,934 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:22:08,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:22:09,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:09,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:22:09,464 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 114 [2019-10-22 11:22:09,691 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 134 [2019-10-22 11:22:10,124 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 134 [2019-10-22 11:22:10,276 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 136 [2019-10-22 11:22:10,818 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 21 [2019-10-22 11:22:10,981 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 20 [2019-10-22 11:22:11,407 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 22 [2019-10-22 11:22:11,660 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 25 [2019-10-22 11:22:12,038 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 26 [2019-10-22 11:22:12,350 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 25 [2019-10-22 11:22:12,761 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 22 [2019-10-22 11:22:12,927 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 24 [2019-10-22 11:22:13,372 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2019-10-22 11:22:13,502 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 21 [2019-10-22 11:22:13,629 INFO L439 ceAbstractionStarter]: At program point L564(lines 559 567) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:22:13,629 INFO L443 ceAbstractionStarter]: For program point L267(lines 267 271) no Hoare annotation was computed. [2019-10-22 11:22:13,629 INFO L439 ceAbstractionStarter]: At program point L69(lines 69 75) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2 .cse3) (and (and .cse0 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:22:13,629 INFO L439 ceAbstractionStarter]: At program point L69-1(lines 69 75) the Hoare annotation is: false [2019-10-22 11:22:13,629 INFO L439 ceAbstractionStarter]: At program point L69-2(lines 69 75) the Hoare annotation is: false [2019-10-22 11:22:13,629 INFO L443 ceAbstractionStarter]: For program point L301(lines 301 305) no Hoare annotation was computed. [2019-10-22 11:22:13,629 INFO L443 ceAbstractionStarter]: For program point L301-2(lines 295 306) no Hoare annotation was computed. [2019-10-22 11:22:13,629 INFO L443 ceAbstractionStarter]: For program point L962(lines 962 979) no Hoare annotation was computed. [2019-10-22 11:22:13,629 INFO L439 ceAbstractionStarter]: At program point L962-1(lines 1 982) the Hoare annotation is: (let ((.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and (and .cse5 .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse5 .cse0 .cse1 .cse2 .cse3 .cse4))) [2019-10-22 11:22:13,629 INFO L443 ceAbstractionStarter]: For program point L962-2(lines 962 979) no Hoare annotation was computed. [2019-10-22 11:22:13,630 INFO L439 ceAbstractionStarter]: At program point L962-3(lines 1 982) the Hoare annotation is: false [2019-10-22 11:22:13,630 INFO L443 ceAbstractionStarter]: For program point L962-4(lines 962 979) no Hoare annotation was computed. [2019-10-22 11:22:13,630 INFO L439 ceAbstractionStarter]: At program point L962-5(lines 1 982) the Hoare annotation is: false [2019-10-22 11:22:13,630 INFO L443 ceAbstractionStarter]: For program point L404(lines 404 410) no Hoare annotation was computed. [2019-10-22 11:22:13,630 INFO L443 ceAbstractionStarter]: For program point L404-1(lines 404 410) no Hoare annotation was computed. [2019-10-22 11:22:13,630 INFO L443 ceAbstractionStarter]: For program point L404-2(lines 404 410) no Hoare annotation was computed. [2019-10-22 11:22:13,630 INFO L443 ceAbstractionStarter]: For program point L404-3(lines 404 410) no Hoare annotation was computed. [2019-10-22 11:22:13,630 INFO L443 ceAbstractionStarter]: For program point L404-4(lines 404 410) no Hoare annotation was computed. [2019-10-22 11:22:13,630 INFO L443 ceAbstractionStarter]: For program point L404-5(lines 404 410) no Hoare annotation was computed. [2019-10-22 11:22:13,630 INFO L439 ceAbstractionStarter]: At program point L173(lines 168 176) the Hoare annotation is: (let ((.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse1 .cse4 .cse2) (and (and .cse3 .cse1 .cse4 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:22:13,630 INFO L439 ceAbstractionStarter]: At program point L173-1(lines 168 176) the Hoare annotation is: (and (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9) (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:22:13,631 INFO L439 ceAbstractionStarter]: At program point L173-2(lines 168 176) the Hoare annotation is: false [2019-10-22 11:22:13,631 INFO L439 ceAbstractionStarter]: At program point L173-3(lines 168 176) the Hoare annotation is: false [2019-10-22 11:22:13,631 INFO L439 ceAbstractionStarter]: At program point L173-4(lines 168 176) the Hoare annotation is: false [2019-10-22 11:22:13,631 INFO L439 ceAbstractionStarter]: At program point L173-5(lines 168 176) the Hoare annotation is: false [2019-10-22 11:22:13,631 INFO L443 ceAbstractionStarter]: For program point L966(lines 966 976) no Hoare annotation was computed. [2019-10-22 11:22:13,631 INFO L443 ceAbstractionStarter]: For program point L966-2(lines 966 976) no Hoare annotation was computed. [2019-10-22 11:22:13,631 INFO L443 ceAbstractionStarter]: For program point L966-4(lines 966 976) no Hoare annotation was computed. [2019-10-22 11:22:13,631 INFO L443 ceAbstractionStarter]: For program point L339(lines 339 343) no Hoare annotation was computed. [2019-10-22 11:22:13,631 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 428) no Hoare annotation was computed. [2019-10-22 11:22:13,631 INFO L443 ceAbstractionStarter]: For program point L967(lines 967 973) no Hoare annotation was computed. [2019-10-22 11:22:13,631 INFO L443 ceAbstractionStarter]: For program point L967-2(lines 967 973) no Hoare annotation was computed. [2019-10-22 11:22:13,632 INFO L443 ceAbstractionStarter]: For program point L967-4(lines 967 973) no Hoare annotation was computed. [2019-10-22 11:22:13,632 INFO L443 ceAbstractionStarter]: For program point L241(lines 241 245) no Hoare annotation was computed. [2019-10-22 11:22:13,632 INFO L443 ceAbstractionStarter]: For program point L241-2(lines 241 245) no Hoare annotation was computed. [2019-10-22 11:22:13,632 INFO L443 ceAbstractionStarter]: For program point L241-3(lines 241 245) no Hoare annotation was computed. [2019-10-22 11:22:13,632 INFO L443 ceAbstractionStarter]: For program point L241-5(lines 241 245) no Hoare annotation was computed. [2019-10-22 11:22:13,632 INFO L443 ceAbstractionStarter]: For program point L241-6(lines 241 245) no Hoare annotation was computed. [2019-10-22 11:22:13,632 INFO L443 ceAbstractionStarter]: For program point L241-8(lines 241 245) no Hoare annotation was computed. [2019-10-22 11:22:13,633 INFO L443 ceAbstractionStarter]: For program point L275(lines 275 281) no Hoare annotation was computed. [2019-10-22 11:22:13,633 INFO L439 ceAbstractionStarter]: At program point L275-1(lines 275 281) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 .cse3 .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) (and .cse3 .cse1 .cse2)))) [2019-10-22 11:22:13,633 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 428) no Hoare annotation was computed. [2019-10-22 11:22:13,633 INFO L439 ceAbstractionStarter]: At program point L409(lines 400 413) the Hoare annotation is: false [2019-10-22 11:22:13,633 INFO L439 ceAbstractionStarter]: At program point L409-1(lines 400 413) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2) (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2))) [2019-10-22 11:22:13,633 INFO L439 ceAbstractionStarter]: At program point L409-2(lines 400 413) the Hoare annotation is: false [2019-10-22 11:22:13,633 INFO L439 ceAbstractionStarter]: At program point L409-3(lines 400 413) the Hoare annotation is: false [2019-10-22 11:22:13,633 INFO L439 ceAbstractionStarter]: At program point L409-4(lines 400 413) the Hoare annotation is: false [2019-10-22 11:22:13,633 INFO L439 ceAbstractionStarter]: At program point L409-5(lines 400 413) the Hoare annotation is: false [2019-10-22 11:22:13,634 INFO L439 ceAbstractionStarter]: At program point L311(lines 264 312) the Hoare annotation is: false [2019-10-22 11:22:13,634 INFO L439 ceAbstractionStarter]: At program point L444-2(lines 444 458) the Hoare annotation is: false [2019-10-22 11:22:13,634 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 428) no Hoare annotation was computed. [2019-10-22 11:22:13,634 INFO L443 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2019-10-22 11:22:13,634 INFO L439 ceAbstractionStarter]: At program point L247(lines 232 250) the Hoare annotation is: (and (= ULTIMATE.start_isLowWaterLevel_~tmp~3 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~1 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:22:13,634 INFO L439 ceAbstractionStarter]: At program point L247-1(lines 232 250) the Hoare annotation is: false [2019-10-22 11:22:13,634 INFO L439 ceAbstractionStarter]: At program point L247-2(lines 232 250) the Hoare annotation is: false [2019-10-22 11:22:13,634 INFO L439 ceAbstractionStarter]: At program point L941(lines 936 943) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:22:13,634 INFO L443 ceAbstractionStarter]: For program point L448(lines 448 452) no Hoare annotation was computed. [2019-10-22 11:22:13,634 INFO L443 ceAbstractionStarter]: For program point L448-1(lines 448 452) no Hoare annotation was computed. [2019-10-22 11:22:13,634 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:22:13,635 INFO L443 ceAbstractionStarter]: For program point L351(lines 351 355) no Hoare annotation was computed. [2019-10-22 11:22:13,635 INFO L443 ceAbstractionStarter]: For program point L285(lines 285 291) no Hoare annotation was computed. [2019-10-22 11:22:13,635 INFO L439 ceAbstractionStarter]: At program point L285-1(lines 285 291) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 .cse3 .cse1 .cse2) (and (= (_ bv1 32) ~pumpRunning~0) (and .cse3 .cse1 .cse2)))) [2019-10-22 11:22:13,635 INFO L443 ceAbstractionStarter]: For program point L120(lines 120 137) no Hoare annotation was computed. [2019-10-22 11:22:13,635 INFO L443 ceAbstractionStarter]: For program point L120-1(lines 120 137) no Hoare annotation was computed. [2019-10-22 11:22:13,635 INFO L443 ceAbstractionStarter]: For program point L120-2(lines 120 137) no Hoare annotation was computed. [2019-10-22 11:22:13,635 INFO L439 ceAbstractionStarter]: At program point L419(lines 414 422) the Hoare annotation is: (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:22:13,635 INFO L439 ceAbstractionStarter]: At program point L419-1(lines 414 422) the Hoare annotation is: false [2019-10-22 11:22:13,635 INFO L439 ceAbstractionStarter]: At program point L419-2(lines 414 422) the Hoare annotation is: false [2019-10-22 11:22:13,635 INFO L443 ceAbstractionStarter]: For program point L222(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,635 INFO L443 ceAbstractionStarter]: For program point L222-2(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,635 INFO L443 ceAbstractionStarter]: For program point L222-3(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,636 INFO L443 ceAbstractionStarter]: For program point L222-5(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,636 INFO L443 ceAbstractionStarter]: For program point L222-6(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,636 INFO L443 ceAbstractionStarter]: For program point L222-8(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,636 INFO L443 ceAbstractionStarter]: For program point L222-9(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,636 INFO L443 ceAbstractionStarter]: For program point L222-11(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,636 INFO L443 ceAbstractionStarter]: For program point L222-12(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,636 INFO L443 ceAbstractionStarter]: For program point L222-14(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,637 INFO L443 ceAbstractionStarter]: For program point L222-15(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,637 INFO L443 ceAbstractionStarter]: For program point L222-17(lines 222 226) no Hoare annotation was computed. [2019-10-22 11:22:13,637 INFO L443 ceAbstractionStarter]: For program point L520(lines 520 527) no Hoare annotation was computed. [2019-10-22 11:22:13,637 INFO L446 ceAbstractionStarter]: At program point L520-1(lines 520 527) the Hoare annotation is: true [2019-10-22 11:22:13,637 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:22:13,637 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 132) no Hoare annotation was computed. [2019-10-22 11:22:13,637 INFO L443 ceAbstractionStarter]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2019-10-22 11:22:13,637 INFO L443 ceAbstractionStarter]: For program point L124-2(lines 124 132) no Hoare annotation was computed. [2019-10-22 11:22:13,637 INFO L439 ceAbstractionStarter]: At program point L951(lines 62 68) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 .cse2) (and (and .cse3 .cse1 .cse4 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse3 .cse0 .cse1 .cse4 .cse2))) [2019-10-22 11:22:13,638 INFO L439 ceAbstractionStarter]: At program point L951-1(lines 62 68) the Hoare annotation is: false [2019-10-22 11:22:13,638 INFO L439 ceAbstractionStarter]: At program point L951-2(lines 62 68) the Hoare annotation is: false [2019-10-22 11:22:13,638 INFO L439 ceAbstractionStarter]: At program point L556(lines 1 982) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:22:13,638 INFO L443 ceAbstractionStarter]: For program point L94(lines 94 111) no Hoare annotation was computed. [2019-10-22 11:22:13,638 INFO L443 ceAbstractionStarter]: For program point L94-1(lines 94 111) no Hoare annotation was computed. [2019-10-22 11:22:13,638 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:22:13,638 INFO L443 ceAbstractionStarter]: For program point L94-2(lines 94 111) no Hoare annotation was computed. [2019-10-22 11:22:13,638 INFO L443 ceAbstractionStarter]: For program point L94-3(lines 94 111) no Hoare annotation was computed. [2019-10-22 11:22:13,638 INFO L443 ceAbstractionStarter]: For program point L94-4(lines 94 111) no Hoare annotation was computed. [2019-10-22 11:22:13,638 INFO L443 ceAbstractionStarter]: For program point L94-5(lines 94 111) no Hoare annotation was computed. [2019-10-22 11:22:13,639 INFO L439 ceAbstractionStarter]: At program point L62(lines 58 80) the Hoare annotation is: (let ((.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1 .cse2) .cse3) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse1 .cse3 .cse2) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2))) [2019-10-22 11:22:13,639 INFO L439 ceAbstractionStarter]: At program point L62-1(lines 58 80) the Hoare annotation is: false [2019-10-22 11:22:13,639 INFO L439 ceAbstractionStarter]: At program point L62-2(lines 58 80) the Hoare annotation is: false [2019-10-22 11:22:13,639 INFO L439 ceAbstractionStarter]: At program point L492(lines 488 494) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:22:13,639 INFO L443 ceAbstractionStarter]: For program point L327(lines 327 331) no Hoare annotation was computed. [2019-10-22 11:22:13,639 INFO L439 ceAbstractionStarter]: At program point L228(lines 213 231) the Hoare annotation is: false [2019-10-22 11:22:13,639 INFO L443 ceAbstractionStarter]: For program point L327-3(lines 327 331) no Hoare annotation was computed. [2019-10-22 11:22:13,639 INFO L439 ceAbstractionStarter]: At program point L228-1(lines 213 231) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2))) [2019-10-22 11:22:13,639 INFO L439 ceAbstractionStarter]: At program point L228-2(lines 213 231) the Hoare annotation is: false [2019-10-22 11:22:13,639 INFO L439 ceAbstractionStarter]: At program point L228-3(lines 213 231) the Hoare annotation is: false [2019-10-22 11:22:13,639 INFO L443 ceAbstractionStarter]: For program point L327-6(lines 327 331) no Hoare annotation was computed. [2019-10-22 11:22:13,640 INFO L439 ceAbstractionStarter]: At program point L228-4(lines 213 231) the Hoare annotation is: false [2019-10-22 11:22:13,640 INFO L439 ceAbstractionStarter]: At program point L228-5(lines 213 231) the Hoare annotation is: false [2019-10-22 11:22:13,640 INFO L443 ceAbstractionStarter]: For program point L295(lines 295 306) no Hoare annotation was computed. [2019-10-22 11:22:13,640 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-10-22 11:22:13,640 INFO L443 ceAbstractionStarter]: For program point L428-1(line 428) no Hoare annotation was computed. [2019-10-22 11:22:13,640 INFO L443 ceAbstractionStarter]: For program point L428-2(line 428) no Hoare annotation was computed. [2019-10-22 11:22:13,640 INFO L443 ceAbstractionStarter]: For program point L98(lines 98 106) no Hoare annotation was computed. [2019-10-22 11:22:13,641 INFO L443 ceAbstractionStarter]: For program point L98-1(lines 98 106) no Hoare annotation was computed. [2019-10-22 11:22:13,641 INFO L443 ceAbstractionStarter]: For program point L98-2(lines 98 106) no Hoare annotation was computed. [2019-10-22 11:22:13,641 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:22:13,641 INFO L443 ceAbstractionStarter]: For program point L98-3(lines 98 106) no Hoare annotation was computed. [2019-10-22 11:22:13,641 INFO L443 ceAbstractionStarter]: For program point L98-4(lines 98 106) no Hoare annotation was computed. [2019-10-22 11:22:13,641 INFO L443 ceAbstractionStarter]: For program point L98-5(lines 98 106) no Hoare annotation was computed. [2019-10-22 11:22:13,641 INFO L439 ceAbstractionStarter]: At program point L396(lines 391 399) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (and .cse0 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse3)) (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2 .cse3 .cse4))) [2019-10-22 11:22:13,641 INFO L439 ceAbstractionStarter]: At program point L396-1(lines 391 399) the Hoare annotation is: false [2019-10-22 11:22:13,641 INFO L439 ceAbstractionStarter]: At program point L396-2(lines 391 399) the Hoare annotation is: false [2019-10-22 11:22:13,641 INFO L446 ceAbstractionStarter]: At program point L529(lines 510 532) the Hoare annotation is: true [2019-10-22 11:22:13,641 INFO L443 ceAbstractionStarter]: For program point L266(lines 265 310) no Hoare annotation was computed. [2019-10-22 11:22:13,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:13 BoogieIcfgContainer [2019-10-22 11:22:13,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:13,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:13,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:13,665 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:13,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:56" (3/4) ... [2019-10-22 11:22:13,669 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:22:13,695 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:22:13,698 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:22:13,699 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:22:13,700 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:22:13,700 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:22:13,701 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:22:13,728 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && 2bv32 == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && 2bv32 == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) [2019-10-22 11:22:13,729 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == pumpRunning && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:22:13,729 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) [2019-10-22 11:22:13,729 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:22:13,730 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) || (waterLevel == \result && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) [2019-10-22 11:22:13,731 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:22:13,731 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:22:13,731 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == tmp && waterLevel == \result) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:22:13,732 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 0bv32 && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:22:13,732 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:22:13,791 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_af80d5c4-e75e-4660-a3e2-4a809d97e54c/bin/utaipan/witness.graphml [2019-10-22 11:22:13,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:13,793 INFO L168 Benchmark]: Toolchain (without parser) took 18529.58 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 413.7 MB). Free memory was 947.0 MB in the beginning and 1.4 GB in the end (delta: -455.6 MB). Peak memory consumption was 505.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:13,793 INFO L168 Benchmark]: CDTParser took 0.17 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 11:22:13,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -159.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:13,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.88 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 11:22:13,794 INFO L168 Benchmark]: Boogie Preprocessor took 64.38 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 11:22:13,794 INFO L168 Benchmark]: RCFGBuilder took 909.68 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: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:13,794 INFO L168 Benchmark]: TraceAbstraction took 16778.99 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 229.6 MB). Free memory was 1.0 GB in the beginning and 798.5 MB in the end (delta: 235.3 MB). Peak memory consumption was 465.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:13,795 INFO L168 Benchmark]: Witness Printer took 127.18 ms. Allocated memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 56.6 MB). Free memory was 798.5 MB in the beginning and 1.4 GB in the end (delta: -604.0 MB). Peak memory consumption was 8.2 kB. Max. memory is 11.5 GB. [2019-10-22 11:22:13,796 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 576.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -159.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.88 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. * Boogie Preprocessor took 64.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 909.68 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: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16778.99 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 229.6 MB). Free memory was 1.0 GB in the beginning and 798.5 MB in the end (delta: 235.3 MB). Peak memory consumption was 465.6 MB. Max. memory is 11.5 GB. * Witness Printer took 127.18 ms. Allocated memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 56.6 MB). Free memory was 798.5 MB in the beginning and 1.4 GB in the end (delta: -604.0 MB). Peak memory consumption was 8.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 428]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 428]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 428]: 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: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (1bv32 == pumpRunning && (2bv32 == waterLevel && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || (1bv32 == pumpRunning && (2bv32 == waterLevel && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 2bv32 == waterLevel) && 2bv32 == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) || (((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && 2bv32 == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) || (waterLevel == \result && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: (((((waterLevel == tmp && waterLevel == \result) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: (((((1bv32 == pumpRunning && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 444]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 414]: Loop Invariant Derived loop invariant: (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 414]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 414]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: ((((((((tmp == 0bv32 && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 3 error locations. Result: SAFE, OverallTime: 16.7s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, HoareTripleCheckerStatistics: 2281 SDtfs, 3795 SDslu, 4639 SDs, 0 SdLazy, 834 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2644 GetRequests, 2522 SyntacticMatches, 3 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 2186 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 49 LocationsWithAnnotation, 49 PreInvPairs, 147 NumberOfFragments, 700 HoareAnnotationTreeSize, 49 FomulaSimplifications, 3963968 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 49 FomulaSimplificationsInter, 150753 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1308 NumberOfCodeBlocks, 1308 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2576 ConstructedInterpolants, 0 QuantifiedInterpolants, 452537 SizeOfPredicates, 73 NumberOfNonLiveVariables, 4854 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 40 InterpolantComputations, 26 PerfectInterpolantSequences, 1884/2084 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...