./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product52.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_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 ac98b61700c421642ba0cea32b1043bdcac0ece8 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 ac98b61700c421642ba0cea32b1043bdcac0ece8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:23:18,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:18,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:18,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:18,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:18,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:18,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:18,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:18,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:18,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:18,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:18,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:18,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:18,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:18,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:18,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:18,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:18,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:18,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:18,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:18,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:18,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:18,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:18,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:18,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:18,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:18,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:18,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:18,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:18,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:18,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:18,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:18,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:18,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:18,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:18,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:18,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:18,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:18,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:18,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:18,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:18,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:18,434 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:18,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:18,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:18,435 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:18,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:18,436 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:18,436 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:18,436 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:18,436 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:18,436 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:18,437 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:18,437 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:18,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:18,448 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:18,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:18,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:18,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:18,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:18,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:18,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:18,449 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:18,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:18,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:18,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:18,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:18,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:18,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:18,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:18,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:18,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:18,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:18,451 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:18,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:18,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:18,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:18,452 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_0951764c-66af-4221-8a7f-0191ccf1c492/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 -> ac98b61700c421642ba0cea32b1043bdcac0ece8 [2019-10-22 11:23:18,495 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:18,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:18,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:18,518 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:18,518 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:18,519 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2019-10-22 11:23:18,562 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data/25f042c48/41b63032d8704ae0922f320ee2ccdc93/FLAGa04eaad23 [2019-10-22 11:23:19,015 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:19,019 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2019-10-22 11:23:19,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data/25f042c48/41b63032d8704ae0922f320ee2ccdc93/FLAGa04eaad23 [2019-10-22 11:23:19,352 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data/25f042c48/41b63032d8704ae0922f320ee2ccdc93 [2019-10-22 11:23:19,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:19,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:19,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:19,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:19,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:19,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:19,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e07f7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19, skipping insertion in model container [2019-10-22 11:23:19,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:19,370 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:19,406 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:19,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:19,785 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:19,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:19,900 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:19,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19 WrapperNode [2019-10-22 11:23:19,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:19,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:19,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:19,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:19,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:19,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:19,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:19,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:19,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:19,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:19,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:19,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:19,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:19,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:19,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:20,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:20,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... [2019-10-22 11:23:20,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:20,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:20,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:20,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:20,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:23:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:20,705 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:20,706 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-10-22 11:23:20,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:20 BoogieIcfgContainer [2019-10-22 11:23:20,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:20,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:20,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:20,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:20,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:19" (1/3) ... [2019-10-22 11:23:20,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646830ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:20, skipping insertion in model container [2019-10-22 11:23:20,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:19" (2/3) ... [2019-10-22 11:23:20,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646830ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:20, skipping insertion in model container [2019-10-22 11:23:20,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:20" (3/3) ... [2019-10-22 11:23:20,714 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2019-10-22 11:23:20,722 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:20,728 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:23:20,740 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:23:20,762 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:20,762 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:20,762 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:20,763 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:20,763 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:20,763 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:20,763 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:20,763 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:20,778 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-10-22 11:23:20,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:23:20,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:20,784 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:20,786 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:20,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:20,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1794729554, now seen corresponding path program 1 times [2019-10-22 11:23:20,799 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:20,799 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706979708] [2019-10-22 11:23:20,799 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:20,799 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:20,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:20,964 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 11:23:20,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706979708] [2019-10-22 11:23:20,966 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:20,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:20,967 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331442177] [2019-10-22 11:23:20,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:20,972 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:20,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:20,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:20,986 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-10-22 11:23:21,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:21,011 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-10-22 11:23:21,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:21,013 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:23:21,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:21,021 INFO L225 Difference]: With dead ends: 232 [2019-10-22 11:23:21,021 INFO L226 Difference]: Without dead ends: 115 [2019-10-22 11:23:21,024 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 11:23:21,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-22 11:23:21,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-10-22 11:23:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-22 11:23:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-10-22 11:23:21,057 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2019-10-22 11:23:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:21,057 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-10-22 11:23:21,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:21,058 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-10-22 11:23:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:23:21,058 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:21,059 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:21,059 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:21,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:21,059 INFO L82 PathProgramCache]: Analyzing trace with hash 529368141, now seen corresponding path program 1 times [2019-10-22 11:23:21,059 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:21,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003324065] [2019-10-22 11:23:21,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:21,175 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 11:23:21,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003324065] [2019-10-22 11:23:21,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:21,176 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:21,176 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779028166] [2019-10-22 11:23:21,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:21,177 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:21,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:21,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:21,178 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2019-10-22 11:23:21,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:21,197 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-10-22 11:23:21,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:21,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 11:23:21,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:21,202 INFO L225 Difference]: With dead ends: 115 [2019-10-22 11:23:21,202 INFO L226 Difference]: Without dead ends: 49 [2019-10-22 11:23:21,203 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 11:23:21,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-22 11:23:21,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-10-22 11:23:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-22 11:23:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-10-22 11:23:21,209 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2019-10-22 11:23:21,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:21,209 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-10-22 11:23:21,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:21,211 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-10-22 11:23:21,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:23:21,212 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:21,212 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 11:23:21,212 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:21,212 INFO L82 PathProgramCache]: Analyzing trace with hash -2061312917, now seen corresponding path program 1 times [2019-10-22 11:23:21,213 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:21,213 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029822336] [2019-10-22 11:23:21,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:21,292 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 11:23:21,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029822336] [2019-10-22 11:23:21,293 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:21,293 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:21,293 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089370023] [2019-10-22 11:23:21,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:21,294 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:21,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:21,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:21,294 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2019-10-22 11:23:21,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:21,323 INFO L93 Difference]: Finished difference Result 135 states and 201 transitions. [2019-10-22 11:23:21,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:21,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 11:23:21,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:21,324 INFO L225 Difference]: With dead ends: 135 [2019-10-22 11:23:21,325 INFO L226 Difference]: Without dead ends: 92 [2019-10-22 11:23:21,325 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 11:23:21,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-10-22 11:23:21,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2019-10-22 11:23:21,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-22 11:23:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2019-10-22 11:23:21,334 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 22 [2019-10-22 11:23:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:21,335 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2019-10-22 11:23:21,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:21,335 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2019-10-22 11:23:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:23:21,335 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:21,335 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:21,336 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:21,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:21,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1499976397, now seen corresponding path program 1 times [2019-10-22 11:23:21,336 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:21,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652100352] [2019-10-22 11:23:21,336 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,337 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:21,397 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 11:23:21,397 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652100352] [2019-10-22 11:23:21,397 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:21,398 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:21,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024234973] [2019-10-22 11:23:21,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:21,398 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:21,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:21,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:21,399 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand 3 states. [2019-10-22 11:23:21,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:21,450 INFO L93 Difference]: Finished difference Result 211 states and 318 transitions. [2019-10-22 11:23:21,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:21,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:23:21,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:21,451 INFO L225 Difference]: With dead ends: 211 [2019-10-22 11:23:21,452 INFO L226 Difference]: Without dead ends: 129 [2019-10-22 11:23:21,452 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 11:23:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-22 11:23:21,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2019-10-22 11:23:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-10-22 11:23:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 185 transitions. [2019-10-22 11:23:21,474 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 185 transitions. Word has length 24 [2019-10-22 11:23:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:21,475 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 185 transitions. [2019-10-22 11:23:21,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 185 transitions. [2019-10-22 11:23:21,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:23:21,476 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:21,476 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] [2019-10-22 11:23:21,476 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:21,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:21,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1678878848, now seen corresponding path program 1 times [2019-10-22 11:23:21,476 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:21,477 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010056854] [2019-10-22 11:23:21,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:21,542 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 11:23:21,543 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010056854] [2019-10-22 11:23:21,543 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:21,543 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:21,543 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133740285] [2019-10-22 11:23:21,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:21,544 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:21,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:21,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:21,544 INFO L87 Difference]: Start difference. First operand 127 states and 185 transitions. Second operand 5 states. [2019-10-22 11:23:21,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:21,654 INFO L93 Difference]: Finished difference Result 451 states and 663 transitions. [2019-10-22 11:23:21,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:21,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 11:23:21,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:21,657 INFO L225 Difference]: With dead ends: 451 [2019-10-22 11:23:21,657 INFO L226 Difference]: Without dead ends: 330 [2019-10-22 11:23:21,660 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-22 11:23:21,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 210. [2019-10-22 11:23:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-10-22 11:23:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 296 transitions. [2019-10-22 11:23:21,695 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 296 transitions. Word has length 25 [2019-10-22 11:23:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:21,695 INFO L462 AbstractCegarLoop]: Abstraction has 210 states and 296 transitions. [2019-10-22 11:23:21,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 296 transitions. [2019-10-22 11:23:21,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:23:21,696 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:21,697 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 11:23:21,697 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:21,698 INFO L82 PathProgramCache]: Analyzing trace with hash -280430142, now seen corresponding path program 1 times [2019-10-22 11:23:21,699 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:21,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707348153] [2019-10-22 11:23:21,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:21,769 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 11:23:21,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707348153] [2019-10-22 11:23:21,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:21,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:21,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056686114] [2019-10-22 11:23:21,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:21,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:21,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:21,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:21,771 INFO L87 Difference]: Start difference. First operand 210 states and 296 transitions. Second operand 5 states. [2019-10-22 11:23:21,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:21,911 INFO L93 Difference]: Finished difference Result 450 states and 648 transitions. [2019-10-22 11:23:21,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:23:21,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 11:23:21,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:21,915 INFO L225 Difference]: With dead ends: 450 [2019-10-22 11:23:21,915 INFO L226 Difference]: Without dead ends: 448 [2019-10-22 11:23:21,916 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 11:23:21,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-10-22 11:23:21,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 210. [2019-10-22 11:23:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-10-22 11:23:21,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 294 transitions. [2019-10-22 11:23:21,950 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 294 transitions. Word has length 26 [2019-10-22 11:23:21,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:21,951 INFO L462 AbstractCegarLoop]: Abstraction has 210 states and 294 transitions. [2019-10-22 11:23:21,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:21,951 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 294 transitions. [2019-10-22 11:23:21,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:23:21,952 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:21,952 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] [2019-10-22 11:23:21,952 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:21,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:21,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1932951004, now seen corresponding path program 1 times [2019-10-22 11:23:21,953 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:21,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205443074] [2019-10-22 11:23:21,953 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:21,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:22,019 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 11:23:22,020 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205443074] [2019-10-22 11:23:22,020 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:22,020 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:23:22,020 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619189552] [2019-10-22 11:23:22,021 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:22,021 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:22,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:22,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:22,021 INFO L87 Difference]: Start difference. First operand 210 states and 294 transitions. Second operand 5 states. [2019-10-22 11:23:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:22,091 INFO L93 Difference]: Finished difference Result 585 states and 811 transitions. [2019-10-22 11:23:22,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:22,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:23:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:22,094 INFO L225 Difference]: With dead ends: 585 [2019-10-22 11:23:22,094 INFO L226 Difference]: Without dead ends: 381 [2019-10-22 11:23:22,095 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 11:23:22,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-10-22 11:23:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 228. [2019-10-22 11:23:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-10-22 11:23:22,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 312 transitions. [2019-10-22 11:23:22,121 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 312 transitions. Word has length 31 [2019-10-22 11:23:22,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:22,121 INFO L462 AbstractCegarLoop]: Abstraction has 228 states and 312 transitions. [2019-10-22 11:23:22,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:22,122 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 312 transitions. [2019-10-22 11:23:22,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:23:22,123 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:22,123 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] [2019-10-22 11:23:22,123 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:22,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:22,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1539923994, now seen corresponding path program 1 times [2019-10-22 11:23:22,127 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:22,127 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495322251] [2019-10-22 11:23:22,127 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:22,128 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:22,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:22,184 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 11:23:22,185 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495322251] [2019-10-22 11:23:22,185 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:22,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:22,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435632173] [2019-10-22 11:23:22,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:22,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:22,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:22,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:22,186 INFO L87 Difference]: Start difference. First operand 228 states and 312 transitions. Second operand 4 states. [2019-10-22 11:23:22,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:22,228 INFO L93 Difference]: Finished difference Result 508 states and 691 transitions. [2019-10-22 11:23:22,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:22,229 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 11:23:22,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:22,230 INFO L225 Difference]: With dead ends: 508 [2019-10-22 11:23:22,230 INFO L226 Difference]: Without dead ends: 286 [2019-10-22 11:23:22,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:22,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2019-10-22 11:23:22,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 197. [2019-10-22 11:23:22,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-10-22 11:23:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 264 transitions. [2019-10-22 11:23:22,243 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 264 transitions. Word has length 31 [2019-10-22 11:23:22,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:22,243 INFO L462 AbstractCegarLoop]: Abstraction has 197 states and 264 transitions. [2019-10-22 11:23:22,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:22,243 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 264 transitions. [2019-10-22 11:23:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:23:22,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:22,244 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] [2019-10-22 11:23:22,244 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:22,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:22,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1798089432, now seen corresponding path program 1 times [2019-10-22 11:23:22,245 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:22,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972463179] [2019-10-22 11:23:22,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:22,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:22,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:22,287 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 11:23:22,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972463179] [2019-10-22 11:23:22,288 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:22,288 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:23:22,288 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695137965] [2019-10-22 11:23:22,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:22,288 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:22,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:22,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:22,289 INFO L87 Difference]: Start difference. First operand 197 states and 264 transitions. Second operand 5 states. [2019-10-22 11:23:22,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:22,420 INFO L93 Difference]: Finished difference Result 761 states and 1046 transitions. [2019-10-22 11:23:22,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:23:22,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:23:22,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:22,422 INFO L225 Difference]: With dead ends: 761 [2019-10-22 11:23:22,423 INFO L226 Difference]: Without dead ends: 620 [2019-10-22 11:23:22,423 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:23:22,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2019-10-22 11:23:22,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 282. [2019-10-22 11:23:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2019-10-22 11:23:22,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 373 transitions. [2019-10-22 11:23:22,444 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 373 transitions. Word has length 31 [2019-10-22 11:23:22,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:22,444 INFO L462 AbstractCegarLoop]: Abstraction has 282 states and 373 transitions. [2019-10-22 11:23:22,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:22,444 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 373 transitions. [2019-10-22 11:23:22,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 11:23:22,445 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:22,445 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:22,445 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:22,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:22,446 INFO L82 PathProgramCache]: Analyzing trace with hash -860512174, now seen corresponding path program 1 times [2019-10-22 11:23:22,446 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:22,446 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832585776] [2019-10-22 11:23:22,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:22,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:22,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:22,473 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:23:22,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832585776] [2019-10-22 11:23:22,474 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:22,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:22,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924623973] [2019-10-22 11:23:22,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:22,475 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:22,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:22,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:22,475 INFO L87 Difference]: Start difference. First operand 282 states and 373 transitions. Second operand 3 states. [2019-10-22 11:23:22,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:22,515 INFO L93 Difference]: Finished difference Result 481 states and 636 transitions. [2019-10-22 11:23:22,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:22,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2019-10-22 11:23:22,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:22,516 INFO L225 Difference]: With dead ends: 481 [2019-10-22 11:23:22,517 INFO L226 Difference]: Without dead ends: 205 [2019-10-22 11:23:22,517 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 11:23:22,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-10-22 11:23:22,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 199. [2019-10-22 11:23:22,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2019-10-22 11:23:22,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 260 transitions. [2019-10-22 11:23:22,534 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 260 transitions. Word has length 49 [2019-10-22 11:23:22,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:22,534 INFO L462 AbstractCegarLoop]: Abstraction has 199 states and 260 transitions. [2019-10-22 11:23:22,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:22,535 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 260 transitions. [2019-10-22 11:23:22,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:23:22,536 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:22,536 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:22,537 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:22,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:22,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1573662553, now seen corresponding path program 1 times [2019-10-22 11:23:22,537 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:22,537 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33351361] [2019-10-22 11:23:22,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:22,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:22,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:22,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33351361] [2019-10-22 11:23:22,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801281216] [2019-10-22 11:23:22,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:22,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:23:22,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:22,749 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:22,777 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:22,777 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1282981598] [2019-10-22 11:23:22,782 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 53 [2019-10-22 11:23:22,827 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:23:22,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:23:23,227 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:23,227 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 11:23:23,232 INFO L168 Benchmark]: Toolchain (without parser) took 3875.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 945.8 MB in the beginning and 937.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 143.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:23,232 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:23,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:23,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.91 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:23,233 INFO L168 Benchmark]: Boogie Preprocessor took 59.13 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:23,234 INFO L168 Benchmark]: RCFGBuilder took 692.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:23,234 INFO L168 Benchmark]: TraceAbstraction took 2522.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 937.1 MB in the end (delta: 102.0 MB). Peak memory consumption was 102.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:23,237 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 544.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.91 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.13 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 692.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2522.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 937.1 MB in the end (delta: 102.0 MB). Peak memory consumption was 102.0 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 11:23:25,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:25,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:25,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:25,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:25,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:25,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:25,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:25,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:25,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:25,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:25,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:25,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:25,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:25,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:25,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:25,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:25,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:25,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:25,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:25,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:25,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:25,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:25,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:25,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:25,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:25,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:25,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:25,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:25,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:25,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:25,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:25,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:25,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:25,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:25,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:25,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:25,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:25,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:25,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:25,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:25,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:23:25,208 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:25,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:25,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:25,209 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:25,210 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:25,210 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:25,210 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:25,210 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:25,210 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:25,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:25,211 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:25,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:25,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:25,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:25,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:25,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:25,212 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:23:25,212 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:23:25,212 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:25,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:25,212 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:23:25,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:25,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:25,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:25,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:25,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:25,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:25,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:25,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:25,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:25,214 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:23:25,214 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:23:25,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:25,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:25,215 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_0951764c-66af-4221-8a7f-0191ccf1c492/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 -> ac98b61700c421642ba0cea32b1043bdcac0ece8 [2019-10-22 11:23:25,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:25,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:25,252 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:25,253 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:25,253 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:25,254 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2019-10-22 11:23:25,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data/6b95d554b/2053a22f519e4fdc80192c3d04f9dedd/FLAG3118943eb [2019-10-22 11:23:25,722 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:25,723 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2019-10-22 11:23:25,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data/6b95d554b/2053a22f519e4fdc80192c3d04f9dedd/FLAG3118943eb [2019-10-22 11:23:26,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/data/6b95d554b/2053a22f519e4fdc80192c3d04f9dedd [2019-10-22 11:23:26,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:26,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:26,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:26,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:26,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:26,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a14e84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26, skipping insertion in model container [2019-10-22 11:23:26,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,106 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:26,155 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:26,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:26,513 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:26,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:26,626 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:26,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26 WrapperNode [2019-10-22 11:23:26,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:26,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:26,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:26,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:26,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:26,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:26,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:26,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:26,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... [2019-10-22 11:23:26,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:26,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:26,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:26,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:26,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:23:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:27,617 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:27,617 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-10-22 11:23:27,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:27 BoogieIcfgContainer [2019-10-22 11:23:27,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:27,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:27,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:27,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:27,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:26" (1/3) ... [2019-10-22 11:23:27,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9c0218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:27, skipping insertion in model container [2019-10-22 11:23:27,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:26" (2/3) ... [2019-10-22 11:23:27,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9c0218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:27, skipping insertion in model container [2019-10-22 11:23:27,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:27" (3/3) ... [2019-10-22 11:23:27,627 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2019-10-22 11:23:27,640 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:27,646 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:23:27,659 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:23:27,684 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:27,684 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:27,684 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:27,684 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:27,684 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:27,684 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:27,685 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:27,685 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:27,696 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-10-22 11:23:27,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:23:27,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:27,704 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:27,708 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:27,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:27,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1794729554, now seen corresponding path program 1 times [2019-10-22 11:23:27,724 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:27,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [198569644] [2019-10-22 11:23:27,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:27,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:23:27,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:27,901 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 11:23:27,901 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:27,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [198569644] [2019-10-22 11:23:27,907 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:27,907 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:23:27,907 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653116794] [2019-10-22 11:23:27,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:27,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:27,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:27,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:27,926 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-10-22 11:23:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:27,954 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-10-22 11:23:27,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:27,955 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 11:23:27,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:27,965 INFO L225 Difference]: With dead ends: 232 [2019-10-22 11:23:27,966 INFO L226 Difference]: Without dead ends: 115 [2019-10-22 11:23:27,968 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 11:23:27,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-22 11:23:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-10-22 11:23:28,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-22 11:23:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-10-22 11:23:28,005 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2019-10-22 11:23:28,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:28,006 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-10-22 11:23:28,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:28,006 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-10-22 11:23:28,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:23:28,007 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:28,007 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:28,207 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:28,208 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:28,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:28,208 INFO L82 PathProgramCache]: Analyzing trace with hash 529368141, now seen corresponding path program 1 times [2019-10-22 11:23:28,210 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:28,210 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [541928011] [2019-10-22 11:23:28,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:28,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:23:28,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:28,382 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 11:23:28,382 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:28,388 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 11:23:28,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [541928011] [2019-10-22 11:23:28,389 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:28,389 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:23:28,389 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437097075] [2019-10-22 11:23:28,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:28,391 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:28,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:28,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:28,391 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 4 states. [2019-10-22 11:23:28,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:28,459 INFO L93 Difference]: Finished difference Result 382 states and 561 transitions. [2019-10-22 11:23:28,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:28,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-22 11:23:28,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:28,462 INFO L225 Difference]: With dead ends: 382 [2019-10-22 11:23:28,462 INFO L226 Difference]: Without dead ends: 273 [2019-10-22 11:23:28,463 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 11:23:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2019-10-22 11:23:28,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 156. [2019-10-22 11:23:28,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-10-22 11:23:28,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2019-10-22 11:23:28,484 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 17 [2019-10-22 11:23:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:28,484 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2019-10-22 11:23:28,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2019-10-22 11:23:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:23:28,485 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:28,485 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 11:23:28,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:28,686 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:28,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:28,687 INFO L82 PathProgramCache]: Analyzing trace with hash 63445775, now seen corresponding path program 1 times [2019-10-22 11:23:28,687 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:28,687 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [684714753] [2019-10-22 11:23:28,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:28,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:23:28,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:28,836 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 11:23:28,836 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:28,838 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 11:23:28,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [684714753] [2019-10-22 11:23:28,839 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:28,839 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:23:28,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479353243] [2019-10-22 11:23:28,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:28,840 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:28,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:28,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:28,840 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand 3 states. [2019-10-22 11:23:28,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:28,978 INFO L93 Difference]: Finished difference Result 351 states and 509 transitions. [2019-10-22 11:23:28,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:28,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:23:28,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:28,979 INFO L225 Difference]: With dead ends: 351 [2019-10-22 11:23:28,980 INFO L226 Difference]: Without dead ends: 201 [2019-10-22 11:23:28,980 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 11:23:28,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2019-10-22 11:23:29,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 195. [2019-10-22 11:23:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-10-22 11:23:29,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 271 transitions. [2019-10-22 11:23:29,008 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 271 transitions. Word has length 19 [2019-10-22 11:23:29,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:29,008 INFO L462 AbstractCegarLoop]: Abstraction has 195 states and 271 transitions. [2019-10-22 11:23:29,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:29,008 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 271 transitions. [2019-10-22 11:23:29,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:23:29,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:29,012 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] [2019-10-22 11:23:29,212 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:29,213 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:29,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:29,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1678878848, now seen corresponding path program 1 times [2019-10-22 11:23:29,214 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:29,214 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [98382272] [2019-10-22 11:23:29,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:29,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:23:29,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:29,383 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 11:23:29,384 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:29,417 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 11:23:29,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [98382272] [2019-10-22 11:23:29,418 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:29,418 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-10-22 11:23:29,418 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749335163] [2019-10-22 11:23:29,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:23:29,419 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:29,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:23:29,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:23:29,419 INFO L87 Difference]: Start difference. First operand 195 states and 271 transitions. Second operand 9 states. [2019-10-22 11:23:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:30,153 INFO L93 Difference]: Finished difference Result 1255 states and 1779 transitions. [2019-10-22 11:23:30,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 11:23:30,154 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2019-10-22 11:23:30,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:30,158 INFO L225 Difference]: With dead ends: 1255 [2019-10-22 11:23:30,158 INFO L226 Difference]: Without dead ends: 1066 [2019-10-22 11:23:30,160 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2019-10-22 11:23:30,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2019-10-22 11:23:30,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 480. [2019-10-22 11:23:30,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2019-10-22 11:23:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 645 transitions. [2019-10-22 11:23:30,255 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 645 transitions. Word has length 25 [2019-10-22 11:23:30,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:30,255 INFO L462 AbstractCegarLoop]: Abstraction has 480 states and 645 transitions. [2019-10-22 11:23:30,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:23:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 645 transitions. [2019-10-22 11:23:30,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-22 11:23:30,258 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:30,258 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-22 11:23:30,461 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:30,461 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:30,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1884030316, now seen corresponding path program 1 times [2019-10-22 11:23:30,462 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:30,462 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1289835436] [2019-10-22 11:23:30,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:30,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:23:30,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:23:30,616 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:23:30,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1289835436] [2019-10-22 11:23:30,619 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:30,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:23:30,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849604737] [2019-10-22 11:23:30,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:30,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:30,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:30,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:30,621 INFO L87 Difference]: Start difference. First operand 480 states and 645 transitions. Second operand 5 states. [2019-10-22 11:23:30,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:30,947 INFO L93 Difference]: Finished difference Result 1102 states and 1505 transitions. [2019-10-22 11:23:30,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:23:30,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-10-22 11:23:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:30,950 INFO L225 Difference]: With dead ends: 1102 [2019-10-22 11:23:30,951 INFO L226 Difference]: Without dead ends: 1096 [2019-10-22 11:23:30,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 80 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 11:23:30,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2019-10-22 11:23:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 480. [2019-10-22 11:23:30,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2019-10-22 11:23:30,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 639 transitions. [2019-10-22 11:23:30,995 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 639 transitions. Word has length 41 [2019-10-22 11:23:30,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:30,995 INFO L462 AbstractCegarLoop]: Abstraction has 480 states and 639 transitions. [2019-10-22 11:23:30,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:30,995 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 639 transitions. [2019-10-22 11:23:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 11:23:30,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:30,997 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:31,201 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:31,202 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:31,202 INFO L82 PathProgramCache]: Analyzing trace with hash 360799123, now seen corresponding path program 1 times [2019-10-22 11:23:31,202 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:31,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1451572509] [2019-10-22 11:23:31,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:31,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:23:31,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:31,359 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 11:23:31,359 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:31,363 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 11:23:31,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1451572509] [2019-10-22 11:23:31,364 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:31,364 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:23:31,364 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525980309] [2019-10-22 11:23:31,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:31,364 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:31,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:31,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:31,365 INFO L87 Difference]: Start difference. First operand 480 states and 639 transitions. Second operand 5 states. [2019-10-22 11:23:31,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:31,546 INFO L93 Difference]: Finished difference Result 1427 states and 1866 transitions. [2019-10-22 11:23:31,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:31,547 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2019-10-22 11:23:31,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:31,550 INFO L225 Difference]: With dead ends: 1427 [2019-10-22 11:23:31,551 INFO L226 Difference]: Without dead ends: 953 [2019-10-22 11:23:31,552 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 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 11:23:31,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2019-10-22 11:23:31,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 525. [2019-10-22 11:23:31,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-10-22 11:23:31,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 684 transitions. [2019-10-22 11:23:31,593 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 684 transitions. Word has length 42 [2019-10-22 11:23:31,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:31,595 INFO L462 AbstractCegarLoop]: Abstraction has 525 states and 684 transitions. [2019-10-22 11:23:31,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:31,595 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 684 transitions. [2019-10-22 11:23:31,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 11:23:31,598 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:31,598 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:31,799 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:31,799 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:31,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2010940139, now seen corresponding path program 1 times [2019-10-22 11:23:31,800 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:31,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1522566052] [2019-10-22 11:23:31,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:31,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:23:31,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:31,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:31,946 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:31,963 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 11:23:31,963 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1522566052] [2019-10-22 11:23:31,963 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:31,964 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:23:31,964 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890775856] [2019-10-22 11:23:31,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:23:31,964 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:31,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:23:31,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:23:31,965 INFO L87 Difference]: Start difference. First operand 525 states and 684 transitions. Second operand 6 states. [2019-10-22 11:23:32,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:32,154 INFO L93 Difference]: Finished difference Result 1349 states and 1740 transitions. [2019-10-22 11:23:32,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:23:32,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2019-10-22 11:23:32,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:32,158 INFO L225 Difference]: With dead ends: 1349 [2019-10-22 11:23:32,158 INFO L226 Difference]: Without dead ends: 759 [2019-10-22 11:23:32,159 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 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 11:23:32,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-10-22 11:23:32,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 429. [2019-10-22 11:23:32,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-10-22 11:23:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 556 transitions. [2019-10-22 11:23:32,207 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 556 transitions. Word has length 42 [2019-10-22 11:23:32,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:32,207 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 556 transitions. [2019-10-22 11:23:32,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:23:32,207 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 556 transitions. [2019-10-22 11:23:32,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-22 11:23:32,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:32,208 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:32,409 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:32,410 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:32,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:32,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1390783933, now seen corresponding path program 1 times [2019-10-22 11:23:32,411 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:32,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [464418293] [2019-10-22 11:23:32,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:32,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:23:32,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:32,551 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:32,556 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [464418293] [2019-10-22 11:23:32,556 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:32,556 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:23:32,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872381824] [2019-10-22 11:23:32,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:32,557 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:32,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:32,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:32,557 INFO L87 Difference]: Start difference. First operand 429 states and 556 transitions. Second operand 3 states. [2019-10-22 11:23:32,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:32,594 INFO L93 Difference]: Finished difference Result 429 states and 556 transitions. [2019-10-22 11:23:32,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:32,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-22 11:23:32,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:32,596 INFO L225 Difference]: With dead ends: 429 [2019-10-22 11:23:32,596 INFO L226 Difference]: Without dead ends: 209 [2019-10-22 11:23:32,596 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 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 11:23:32,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-10-22 11:23:32,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2019-10-22 11:23:32,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-10-22 11:23:32,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2019-10-22 11:23:32,614 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 47 [2019-10-22 11:23:32,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:32,614 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2019-10-22 11:23:32,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:32,614 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2019-10-22 11:23:32,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 11:23:32,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:32,615 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:32,816 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:32,816 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:32,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:32,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1573662553, now seen corresponding path program 1 times [2019-10-22 11:23:32,817 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:32,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2116236261] [2019-10-22 11:23:32,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:32,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 11:23:32,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:23:32,978 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:23:33,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2116236261] [2019-10-22 11:23:33,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660652160] [2019-10-22 11:23:33,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:33,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:23:33,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:23:33,127 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:33,140 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:23:33,140 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:23:33,140 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5] total 10 [2019-10-22 11:23:33,141 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612527758] [2019-10-22 11:23:33,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 11:23:33,141 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:33,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 11:23:33,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:23:33,142 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand 11 states. [2019-10-22 11:23:33,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:33,981 INFO L93 Difference]: Finished difference Result 1313 states and 1808 transitions. [2019-10-22 11:23:33,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-22 11:23:33,981 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2019-10-22 11:23:33,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:33,984 INFO L225 Difference]: With dead ends: 1313 [2019-10-22 11:23:33,984 INFO L226 Difference]: Without dead ends: 1152 [2019-10-22 11:23:33,987 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2019-10-22 11:23:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2019-10-22 11:23:34,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 351. [2019-10-22 11:23:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-10-22 11:23:34,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 478 transitions. [2019-10-22 11:23:34,022 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 478 transitions. Word has length 52 [2019-10-22 11:23:34,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:34,022 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 478 transitions. [2019-10-22 11:23:34,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 11:23:34,023 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 478 transitions. [2019-10-22 11:23:34,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-22 11:23:34,024 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:34,024 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:34,424 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:34,425 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:34,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:34,425 INFO L82 PathProgramCache]: Analyzing trace with hash -5787080, now seen corresponding path program 2 times [2019-10-22 11:23:34,425 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:34,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [820755248] [2019-10-22 11:23:34,425 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:35,829 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 11:23:35,829 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 11:23:35,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:23:35,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:35,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:23:35,924 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:23:35,925 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:23:35,966 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [820755248] [2019-10-22 11:23:35,966 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:35,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 11:23:35,966 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24905728] [2019-10-22 11:23:35,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:23:35,967 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:35,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:23:35,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:23:35,967 INFO L87 Difference]: Start difference. First operand 351 states and 478 transitions. Second operand 9 states. [2019-10-22 11:23:36,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:36,870 INFO L93 Difference]: Finished difference Result 1523 states and 2086 transitions. [2019-10-22 11:23:36,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-22 11:23:36,871 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2019-10-22 11:23:36,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:36,874 INFO L225 Difference]: With dead ends: 1523 [2019-10-22 11:23:36,874 INFO L226 Difference]: Without dead ends: 1122 [2019-10-22 11:23:36,875 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2019-10-22 11:23:36,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2019-10-22 11:23:36,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 430. [2019-10-22 11:23:36,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-22 11:23:36,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 576 transitions. [2019-10-22 11:23:36,923 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 576 transitions. Word has length 73 [2019-10-22 11:23:36,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:36,923 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 576 transitions. [2019-10-22 11:23:36,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:23:36,923 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 576 transitions. [2019-10-22 11:23:36,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-22 11:23:36,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:36,924 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:37,124 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:37,125 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:37,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:37,125 INFO L82 PathProgramCache]: Analyzing trace with hash 268972534, now seen corresponding path program 1 times [2019-10-22 11:23:37,125 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:37,125 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [339681088] [2019-10-22 11:23:37,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/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 11:23:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:37,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:23:37,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:37,285 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 11:23:37,285 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:37,313 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 11:23:37,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [339681088] [2019-10-22 11:23:37,313 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:37,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-10-22 11:23:37,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820366503] [2019-10-22 11:23:37,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:23:37,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:37,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:23:37,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:23:37,314 INFO L87 Difference]: Start difference. First operand 430 states and 576 transitions. Second operand 9 states. [2019-10-22 11:23:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:37,392 INFO L93 Difference]: Finished difference Result 707 states and 939 transitions. [2019-10-22 11:23:37,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:37,393 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 73 [2019-10-22 11:23:37,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:37,393 INFO L225 Difference]: With dead ends: 707 [2019-10-22 11:23:37,393 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:23:37,394 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:23:37,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:23:37,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:23:37,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:23:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:23:37,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-10-22 11:23:37,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:37,395 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:23:37,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:23:37,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:23:37,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:23:37,596 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:37,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:23:38,018 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 130 [2019-10-22 11:23:38,334 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 134 [2019-10-22 11:23:38,494 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 133 [2019-10-22 11:23:38,635 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 133 [2019-10-22 11:23:38,870 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 135 [2019-10-22 11:23:39,599 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 32 [2019-10-22 11:23:39,924 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 34 [2019-10-22 11:23:40,355 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 26 [2019-10-22 11:23:40,906 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 40 [2019-10-22 11:23:41,375 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 40 [2019-10-22 11:23:41,529 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 27 [2019-10-22 11:23:42,042 WARN L191 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 32 [2019-10-22 11:23:42,322 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 21 [2019-10-22 11:23:42,544 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 35 [2019-10-22 11:23:42,551 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 953) no Hoare annotation was computed. [2019-10-22 11:23:42,551 INFO L443 ceAbstractionStarter]: For program point L400(lines 400 406) no Hoare annotation was computed. [2019-10-22 11:23:42,551 INFO L439 ceAbstractionStarter]: At program point L400-1(lines 400 406) the Hoare annotation is: (let ((.cse6 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse7 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) (.cse4 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 (_ bv0 32)))) (.cse5 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and .cse1 (and .cse2 .cse3 .cse4))) (and .cse0 (and .cse5 .cse6 .cse1 .cse2 .cse7)) (and (and .cse5 .cse6 .cse1 .cse3 .cse7) .cse0) (and .cse2 (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) .cse1 .cse4 .cse0 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and (and (and .cse2 .cse3) .cse5 .cse1) .cse0))) [2019-10-22 11:23:42,551 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 210) no Hoare annotation was computed. [2019-10-22 11:23:42,551 INFO L443 ceAbstractionStarter]: For program point L202-1(lines 202 210) no Hoare annotation was computed. [2019-10-22 11:23:42,551 INFO L439 ceAbstractionStarter]: At program point L136(lines 127 140) the Hoare annotation is: false [2019-10-22 11:23:42,552 INFO L443 ceAbstractionStarter]: For program point L202-2(lines 202 210) no Hoare annotation was computed. [2019-10-22 11:23:42,552 INFO L439 ceAbstractionStarter]: At program point L136-1(lines 127 140) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 (_ bv0 32)))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) .cse3) (and (and (and .cse0 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse1) .cse3))) [2019-10-22 11:23:42,552 INFO L443 ceAbstractionStarter]: For program point L202-3(lines 202 210) no Hoare annotation was computed. [2019-10-22 11:23:42,552 INFO L439 ceAbstractionStarter]: At program point L136-2(lines 127 140) the Hoare annotation is: false [2019-10-22 11:23:42,552 INFO L443 ceAbstractionStarter]: For program point L202-4(lines 202 210) no Hoare annotation was computed. [2019-10-22 11:23:42,552 INFO L439 ceAbstractionStarter]: At program point L136-3(lines 127 140) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:42,552 INFO L443 ceAbstractionStarter]: For program point L202-5(lines 202 210) no Hoare annotation was computed. [2019-10-22 11:23:42,552 INFO L439 ceAbstractionStarter]: At program point L136-4(lines 127 140) the Hoare annotation is: false [2019-10-22 11:23:42,552 INFO L439 ceAbstractionStarter]: At program point L136-5(lines 127 140) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:42,552 INFO L443 ceAbstractionStarter]: For program point L830(lines 830 834) no Hoare annotation was computed. [2019-10-22 11:23:42,552 INFO L443 ceAbstractionStarter]: For program point L830-1(lines 166 172) no Hoare annotation was computed. [2019-10-22 11:23:42,552 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 953) no Hoare annotation was computed. [2019-10-22 11:23:42,553 INFO L439 ceAbstractionStarter]: At program point L173(lines 173 179) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (and .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and .cse0 (and .cse3 .cse2 (not (= ~systemActive~0 (_ bv0 32))))) (and .cse0 (and .cse3 .cse2 .cse1)))) [2019-10-22 11:23:42,553 INFO L439 ceAbstractionStarter]: At program point L173-1(lines 173 179) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~0) .cse1 .cse2) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:23:42,553 INFO L439 ceAbstractionStarter]: At program point L173-2(lines 173 179) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:42,553 INFO L443 ceAbstractionStarter]: For program point L966(lines 966 979) no Hoare annotation was computed. [2019-10-22 11:23:42,553 INFO L439 ceAbstractionStarter]: At program point L966-1(lines 1 982) the Hoare annotation is: (let ((.cse5 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse6 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse2 (not (= ~systemActive~0 (_ bv0 32)))) (.cse7 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and (and .cse1 .cse2 .cse3) .cse4)) (and .cse5 .cse1 .cse6 .cse4 .cse0 .cse7) (and .cse5 .cse6 .cse2 .cse4 .cse0 .cse7) (and .cse1 .cse4 (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) .cse3 .cse0 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2019-10-22 11:23:42,553 INFO L443 ceAbstractionStarter]: For program point L900(lines 900 907) no Hoare annotation was computed. [2019-10-22 11:23:42,553 INFO L443 ceAbstractionStarter]: For program point L966-2(lines 966 979) no Hoare annotation was computed. [2019-10-22 11:23:42,553 INFO L439 ceAbstractionStarter]: At program point L966-3(lines 1 982) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:42,553 INFO L446 ceAbstractionStarter]: At program point L900-1(lines 900 907) the Hoare annotation is: true [2019-10-22 11:23:42,553 INFO L443 ceAbstractionStarter]: For program point L966-4(lines 966 979) no Hoare annotation was computed. [2019-10-22 11:23:42,553 INFO L439 ceAbstractionStarter]: At program point L966-5(lines 1 982) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:42,554 INFO L439 ceAbstractionStarter]: At program point L440(lines 389 441) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1 .cse2))) [2019-10-22 11:23:42,554 INFO L439 ceAbstractionStarter]: At program point L936(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 11:23:42,554 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 82) no Hoare annotation was computed. [2019-10-22 11:23:42,554 INFO L443 ceAbstractionStarter]: For program point L970(lines 970 976) no Hoare annotation was computed. [2019-10-22 11:23:42,554 INFO L443 ceAbstractionStarter]: For program point L970-2(lines 970 976) no Hoare annotation was computed. [2019-10-22 11:23:42,554 INFO L443 ceAbstractionStarter]: For program point L970-4(lines 970 976) no Hoare annotation was computed. [2019-10-22 11:23:42,554 INFO L439 ceAbstractionStarter]: At program point L277(lines 272 280) the Hoare annotation is: false [2019-10-22 11:23:42,554 INFO L439 ceAbstractionStarter]: At program point L277-1(lines 272 280) the Hoare annotation is: false [2019-10-22 11:23:42,554 INFO L439 ceAbstractionStarter]: At program point L277-2(lines 272 280) the Hoare annotation is: false [2019-10-22 11:23:42,554 INFO L443 ceAbstractionStarter]: For program point L410(lines 410 416) no Hoare annotation was computed. [2019-10-22 11:23:42,554 INFO L439 ceAbstractionStarter]: At program point L410-1(lines 410 416) the Hoare annotation is: (let ((.cse6 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse7 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) (.cse4 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 (_ bv0 32)))) (.cse5 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse1 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and .cse1 (and .cse2 .cse3 .cse4))) (and .cse0 (and .cse5 .cse6 .cse1 .cse2 .cse7)) (and (and .cse5 .cse6 .cse1 .cse3 .cse7) .cse0) (and .cse2 (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) .cse1 .cse4 .cse0 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and (and (and .cse2 .cse3) .cse5 .cse1) .cse0))) [2019-10-22 11:23:42,555 INFO L439 ceAbstractionStarter]: At program point L146(lines 141 149) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32))) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) [2019-10-22 11:23:42,555 INFO L439 ceAbstractionStarter]: At program point L146-1(lines 141 149) the Hoare annotation is: false [2019-10-22 11:23:42,555 INFO L439 ceAbstractionStarter]: At program point L146-2(lines 141 149) the Hoare annotation is: false [2019-10-22 11:23:42,555 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 349) no Hoare annotation was computed. [2019-10-22 11:23:42,555 INFO L443 ceAbstractionStarter]: For program point L345-2(lines 345 349) no Hoare annotation was computed. [2019-10-22 11:23:42,555 INFO L443 ceAbstractionStarter]: For program point L345-3(lines 345 349) no Hoare annotation was computed. [2019-10-22 11:23:42,555 INFO L443 ceAbstractionStarter]: For program point L345-5(lines 345 349) no Hoare annotation was computed. [2019-10-22 11:23:42,555 INFO L443 ceAbstractionStarter]: For program point L345-6(lines 345 349) no Hoare annotation was computed. [2019-10-22 11:23:42,555 INFO L443 ceAbstractionStarter]: For program point L345-8(lines 345 349) no Hoare annotation was computed. [2019-10-22 11:23:42,555 INFO L439 ceAbstractionStarter]: At program point L874(lines 870 876) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:42,555 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 953) no Hoare annotation was computed. [2019-10-22 11:23:42,556 INFO L446 ceAbstractionStarter]: At program point L909(lines 890 912) the Hoare annotation is: true [2019-10-22 11:23:42,556 INFO L439 ceAbstractionStarter]: At program point L944(lines 939 947) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:42,556 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:23:42,556 INFO L439 ceAbstractionStarter]: At program point L351(lines 336 354) the Hoare annotation is: (and (not (= ~systemActive~0 (_ bv0 32))) (= ULTIMATE.start_isLowWaterLevel_~tmp~3 (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 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)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32))) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) [2019-10-22 11:23:42,556 INFO L439 ceAbstractionStarter]: At program point L351-1(lines 336 354) the Hoare annotation is: false [2019-10-22 11:23:42,556 INFO L439 ceAbstractionStarter]: At program point L351-2(lines 336 354) the Hoare annotation is: false [2019-10-22 11:23:42,556 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 58) no Hoare annotation was computed. [2019-10-22 11:23:42,556 INFO L443 ceAbstractionStarter]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2019-10-22 11:23:42,556 INFO L443 ceAbstractionStarter]: For program point L54-6(lines 54 58) no Hoare annotation was computed. [2019-10-22 11:23:42,556 INFO L443 ceAbstractionStarter]: For program point L420(lines 420 435) no Hoare annotation was computed. [2019-10-22 11:23:42,557 INFO L439 ceAbstractionStarter]: At program point L123(lines 118 126) the Hoare annotation is: (let ((.cse0 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse2 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse4 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse3 (not (= ~systemActive~0 (_ bv0 32))) .cse4) (and .cse1 .cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse4 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2019-10-22 11:23:42,557 INFO L439 ceAbstractionStarter]: At program point L123-1(lines 118 126) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:42,557 INFO L439 ceAbstractionStarter]: At program point L123-2(lines 118 126) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:42,557 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:23:42,557 INFO L443 ceAbstractionStarter]: For program point L224(lines 224 241) no Hoare annotation was computed. [2019-10-22 11:23:42,557 INFO L443 ceAbstractionStarter]: For program point L224-1(lines 224 241) no Hoare annotation was computed. [2019-10-22 11:23:42,557 INFO L443 ceAbstractionStarter]: For program point L224-2(lines 224 241) no Hoare annotation was computed. [2019-10-22 11:23:42,557 INFO L443 ceAbstractionStarter]: For program point L391(lines 390 439) no Hoare annotation was computed. [2019-10-22 11:23:42,557 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:23:42,557 INFO L443 ceAbstractionStarter]: For program point L953(line 953) no Hoare annotation was computed. [2019-10-22 11:23:42,557 INFO L443 ceAbstractionStarter]: For program point L953-1(line 953) no Hoare annotation was computed. [2019-10-22 11:23:42,557 INFO L443 ceAbstractionStarter]: For program point L953-2(line 953) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L392(lines 392 396) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L359(lines 359 365) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L439 ceAbstractionStarter]: At program point L359-1(lines 359 365) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (and .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and .cse0 (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse2 .cse1)))) [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-2(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-3(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-5(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-6(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-8(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-9(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-11(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-12(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-14(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,558 INFO L443 ceAbstractionStarter]: For program point L326-15(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L326-17(lines 326 330) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L228(lines 228 236) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L228-1(lines 228 236) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L228-2(lines 228 236) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L428(lines 428 434) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L439 ceAbstractionStarter]: At program point L428-1(lines 166 172) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32))) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (and .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (and (and .cse3 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse2 (not (= ~systemActive~0 (_ bv0 32))) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) .cse0) (and .cse0 (and .cse3 .cse2 .cse1)))) [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L131(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L131-1(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L131-2(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L131-3(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L131-4(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L131-5(lines 131 137) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L198(lines 198 215) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L198-1(lines 198 215) no Hoare annotation was computed. [2019-10-22 11:23:42,559 INFO L443 ceAbstractionStarter]: For program point L198-2(lines 198 215) no Hoare annotation was computed. [2019-10-22 11:23:42,560 INFO L443 ceAbstractionStarter]: For program point L198-3(lines 198 215) no Hoare annotation was computed. [2019-10-22 11:23:42,560 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 70) no Hoare annotation was computed. [2019-10-22 11:23:42,560 INFO L443 ceAbstractionStarter]: For program point L198-4(lines 198 215) no Hoare annotation was computed. [2019-10-22 11:23:42,560 INFO L443 ceAbstractionStarter]: For program point L198-5(lines 198 215) no Hoare annotation was computed. [2019-10-22 11:23:42,560 INFO L439 ceAbstractionStarter]: At program point L826-2(lines 826 840) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:42,560 INFO L439 ceAbstractionStarter]: At program point L166(lines 165 184) the Hoare annotation is: (let ((.cse3 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (and .cse1 .cse2 .cse3)) (and (and (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse2 (not (= ~systemActive~0 (_ bv0 32))) .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv0 32)))) .cse0) (and .cse0 (and (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse2 .cse1)))) [2019-10-22 11:23:42,560 INFO L443 ceAbstractionStarter]: For program point L166-1(lines 166 172) no Hoare annotation was computed. [2019-10-22 11:23:42,560 INFO L439 ceAbstractionStarter]: At program point L166-2(lines 165 184) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|)) (.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1 .cse2))) [2019-10-22 11:23:42,560 INFO L439 ceAbstractionStarter]: At program point L166-3(lines 165 184) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:42,560 INFO L443 ceAbstractionStarter]: For program point L827(line 827) no Hoare annotation was computed. [2019-10-22 11:23:42,561 INFO L439 ceAbstractionStarter]: At program point L332(lines 317 335) the Hoare annotation is: false [2019-10-22 11:23:42,561 INFO L439 ceAbstractionStarter]: At program point L332-1(lines 317 335) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (bvslt ULTIMATE.start_test_~splverifierCounter~0 (_ bv4 32))) (.cse0 (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|))) (or (and .cse0 (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse1 .cse2 .cse3 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv4294967295 32)) (_ bv0 32)))) (and (and (and .cse1 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967294 32)) (_ bv0 32)) .cse2) .cse0))) [2019-10-22 11:23:42,561 INFO L439 ceAbstractionStarter]: At program point L332-2(lines 317 335) the Hoare annotation is: false [2019-10-22 11:23:42,561 INFO L439 ceAbstractionStarter]: At program point L332-3(lines 317 335) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:42,561 INFO L439 ceAbstractionStarter]: At program point L332-4(lines 317 335) the Hoare annotation is: false [2019-10-22 11:23:42,561 INFO L439 ceAbstractionStarter]: At program point L332-5(lines 317 335) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9 (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_valid_product_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32)) (= (bvadd ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|)) [2019-10-22 11:23:42,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:42 BoogieIcfgContainer [2019-10-22 11:23:42,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:42,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:42,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:42,587 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:42,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:27" (3/4) ... [2019-10-22 11:23:42,590 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:23:42,607 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:23:42,607 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:23:42,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:23:42,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:23:42,609 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:23:42,609 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:23:42,640 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:23:42,640 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:23:42,640 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv32 == \result && ((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && !(tmp == 0bv32))) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && !(tmp == 0bv32))) || (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && 1bv32 == \result) [2019-10-22 11:23:42,640 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:23:42,641 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:23:42,641 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (1bv32 == \result && (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) && !(tmp == 0bv32))) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && !(tmp == 0bv32)) && 1bv32 == \result)) || (((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) [2019-10-22 11:23:42,641 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((1bv32 == \result && (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == tmp) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) [2019-10-22 11:23:42,641 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1bv32 == \result && ~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (1bv32 == \result && (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) && !(tmp == 0bv32))) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && !(tmp == 0bv32)) && 1bv32 == \result)) || (((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) [2019-10-22 11:23:42,642 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && !(tmp == 0bv32)) && 1bv32 == \result)) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) [2019-10-22 11:23:42,642 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && 1bv32 == \result)) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) [2019-10-22 11:23:42,642 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:42,642 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32))) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) [2019-10-22 11:23:42,642 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) [2019-10-22 11:23:42,642 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:42,643 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:42,643 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && 1bv32 == \result) [2019-10-22 11:23:42,643 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 [2019-10-22 11:23:42,643 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:42,643 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:42,644 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(systemActive == 0bv32) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && 1bv32 == \result [2019-10-22 11:23:42,644 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 [2019-10-22 11:23:42,644 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) [2019-10-22 11:23:42,644 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:42,645 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(systemActive == 0bv32) && tmp == 0bv32) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && 1bv32 == \result [2019-10-22 11:23:42,645 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:42,647 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && ((((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) [2019-10-22 11:23:42,647 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:42,647 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result [2019-10-22 11:23:42,707 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0951764c-66af-4221-8a7f-0191ccf1c492/bin/utaipan/witness.graphml [2019-10-22 11:23:42,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:42,708 INFO L168 Benchmark]: Toolchain (without parser) took 16619.01 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 378.5 MB). Free memory was 943.0 MB in the beginning and 1.2 GB in the end (delta: -253.7 MB). Peak memory consumption was 124.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:42,708 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 11:23:42,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:42,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.08 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:42,709 INFO L168 Benchmark]: Boogie Preprocessor took 45.39 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 11:23:42,709 INFO L168 Benchmark]: RCFGBuilder took 892.73 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: 63.6 MB). Peak memory consumption was 63.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:42,709 INFO L168 Benchmark]: TraceAbstraction took 14966.07 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 232.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -149.9 MB). Peak memory consumption was 463.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:42,710 INFO L168 Benchmark]: Witness Printer took 120.71 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:42,711 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 535.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.08 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.39 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 892.73 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: 63.6 MB). Peak memory consumption was 63.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14966.07 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 232.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -149.9 MB). Peak memory consumption was 463.6 MB. Max. memory is 11.5 GB. * Witness Printer took 120.71 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 953]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 953]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 953]: 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: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((1bv32 == \result && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((!(0bv32 == \result) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && 1bv32 == \result)) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: (((((!(systemActive == 0bv32) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && 1bv32 == \result - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: (1bv32 == \result && ((((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && \result == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((1bv32 == \result && (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 0bv32 == tmp) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((1bv32 == \result && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32))) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || (((0bv32 == pumpRunning && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && ~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (1bv32 == \result && (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) && !(tmp == 0bv32))) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && !(tmp == 0bv32)) && 1bv32 == \result)) || (((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((((1bv32 == \result && ~bvslt32(splverifierCounter, 4bv32) && (0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (1bv32 == \result && (((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) && !(tmp == 0bv32))) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && !(tmp == 0bv32)) && 1bv32 == \result)) || (((((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) || ((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && 1bv32 == \result)) || ((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && 1bv32 == \result) - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) || ((((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967294bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: ((1bv32 == \result && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && !(systemActive == 0bv32)) && !(tmp == 0bv32)) && 1bv32 == \result)) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: ((((((((!(systemActive == 0bv32) && tmp == 0bv32) && !(0bv32 == \result)) && \result == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && !(tmp == 0bv32)) && 1bv32 == \result - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: ((((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32 - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: ((((((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && tmp___0 == 0bv32) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 359]: Loop Invariant Derived loop invariant: (1bv32 == \result && (0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (1bv32 == \result && (~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && ~bvslt32(splverifierCounter, 4bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((1bv32 == \result && ((0bv32 == pumpRunning && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && ~bvslt32(splverifierCounter, 4bv32)) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && 0bv32 == pumpRunning) && !(0bv32 == \result)) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && !(tmp == 0bv32))) || (((((~bvadd64(waterLevel, 4294967294bv32) == 0bv32 && !(0bv32 == \result)) && !(systemActive == 0bv32)) && ~bvslt32(splverifierCounter, 4bv32)) && 1bv32 == \result) && !(tmp == 0bv32))) || (((((0bv32 == pumpRunning && ~bvslt32(splverifierCounter, 4bv32)) && ~bvadd64(tmp, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result) && 1bv32 == \result) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 1bv32 == \result - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Result: SAFE, OverallTime: 14.8s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, HoareTripleCheckerStatistics: 2028 SDtfs, 5125 SDslu, 5720 SDs, 0 SdLazy, 1145 SolverSat, 274 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1039 GetRequests, 942 SyntacticMatches, 2 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=525occurred in iteration=6, 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, 11 MinimizatonAttempts, 3576 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 218 NumberOfFragments, 1179 HoareAnnotationTreeSize, 44 FomulaSimplifications, 521154 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 44 FomulaSimplificationsInter, 47976 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 499 NumberOfCodeBlocks, 499 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 974 ConstructedInterpolants, 0 QuantifiedInterpolants, 100074 SizeOfPredicates, 45 NumberOfNonLiveVariables, 2518 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 250/286 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...