./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.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_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 9bd2750697477c749a894a241eb18460dbfa6e62 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 9bd2750697477c749a894a241eb18460dbfa6e62 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 11:22:40,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:40,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:40,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:40,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:40,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:40,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:40,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:40,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:40,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:40,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:40,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:40,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:40,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:40,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:40,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:40,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:40,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:40,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:40,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:40,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:40,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:40,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:40,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:40,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:40,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:40,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:40,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:40,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:40,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:40,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:40,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:40,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:40,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:40,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:40,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:40,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:40,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:40,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:40,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:40,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:40,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:40,915 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:40,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:40,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:40,916 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:40,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:40,917 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:40,917 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:40,917 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:40,917 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:40,917 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:40,917 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:40,917 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:40,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:40,918 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:40,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:40,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:40,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:40,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:40,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:40,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:40,919 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:40,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:40,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:40,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:40,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:40,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:40,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:40,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:40,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:40,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:40,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:40,921 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:40,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:40,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:40,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:40,921 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_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 -> 9bd2750697477c749a894a241eb18460dbfa6e62 [2019-10-22 11:22:40,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:40,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:40,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:40,957 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:40,957 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:40,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2019-10-22 11:22:41,012 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data/d81271ff3/e503c61e52ab46ed844fab808ab9fb37/FLAGa53d83c18 [2019-10-22 11:22:41,425 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:41,430 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2019-10-22 11:22:41,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data/d81271ff3/e503c61e52ab46ed844fab808ab9fb37/FLAGa53d83c18 [2019-10-22 11:22:41,786 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data/d81271ff3/e503c61e52ab46ed844fab808ab9fb37 [2019-10-22 11:22:41,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:41,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:41,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:41,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:41,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:41,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:41" (1/1) ... [2019-10-22 11:22:41,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2785b9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:41, skipping insertion in model container [2019-10-22 11:22:41,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:41" (1/1) ... [2019-10-22 11:22:41,805 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:41,854 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:42,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:42,161 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:42,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:42,268 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:42,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42 WrapperNode [2019-10-22 11:22:42,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:42,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:42,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:42,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:42,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:42,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:42,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:42,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:42,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:42,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:42,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:42,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:42,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 11:22:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:22:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:43,238 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:43,238 INFO L284 CfgBuilder]: Removed 206 assume(true) statements. [2019-10-22 11:22:43,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:43 BoogieIcfgContainer [2019-10-22 11:22:43,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:43,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:43,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:43,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:43,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:41" (1/3) ... [2019-10-22 11:22:43,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac9a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:43, skipping insertion in model container [2019-10-22 11:22:43,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (2/3) ... [2019-10-22 11:22:43,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac9a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:43, skipping insertion in model container [2019-10-22 11:22:43,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:43" (3/3) ... [2019-10-22 11:22:43,248 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2019-10-22 11:22:43,257 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:43,263 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:22:43,269 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:22:43,290 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:43,290 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:43,290 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:43,290 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:43,291 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:43,291 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:43,291 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:43,291 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2019-10-22 11:22:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:22:43,312 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:43,313 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 11:22:43,315 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:43,320 INFO L82 PathProgramCache]: Analyzing trace with hash -947048074, now seen corresponding path program 1 times [2019-10-22 11:22:43,327 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:43,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127757338] [2019-10-22 11:22:43,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:43,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:43,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:43,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127757338] [2019-10-22 11:22:43,509 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:43,512 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:43,512 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330510895] [2019-10-22 11:22:43,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:22:43,517 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:43,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:22:43,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:43,540 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2019-10-22 11:22:43,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:43,578 INFO L93 Difference]: Finished difference Result 281 states and 418 transitions. [2019-10-22 11:22:43,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:22:43,580 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:22:43,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:43,594 INFO L225 Difference]: With dead ends: 281 [2019-10-22 11:22:43,594 INFO L226 Difference]: Without dead ends: 140 [2019-10-22 11:22:43,597 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 11:22:43,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-10-22 11:22:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-10-22 11:22:43,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-22 11:22:43,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 201 transitions. [2019-10-22 11:22:43,650 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 201 transitions. Word has length 19 [2019-10-22 11:22:43,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:43,650 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 201 transitions. [2019-10-22 11:22:43,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:22:43,650 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 201 transitions. [2019-10-22 11:22:43,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:22:43,654 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:43,654 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:43,655 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:43,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:43,655 INFO L82 PathProgramCache]: Analyzing trace with hash 858971479, now seen corresponding path program 1 times [2019-10-22 11:22:43,655 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:43,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395272169] [2019-10-22 11:22:43,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:43,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:43,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:43,768 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395272169] [2019-10-22 11:22:43,768 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:43,768 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:43,768 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792397966] [2019-10-22 11:22:43,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:43,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:43,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:43,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:43,770 INFO L87 Difference]: Start difference. First operand 140 states and 201 transitions. Second operand 3 states. [2019-10-22 11:22:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:43,789 INFO L93 Difference]: Finished difference Result 140 states and 201 transitions. [2019-10-22 11:22:43,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:43,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-22 11:22:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:43,791 INFO L225 Difference]: With dead ends: 140 [2019-10-22 11:22:43,791 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 11:22:43,792 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 11:22:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 11:22:43,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-10-22 11:22:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-22 11:22:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 81 transitions. [2019-10-22 11:22:43,798 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 81 transitions. Word has length 20 [2019-10-22 11:22:43,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:43,798 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 81 transitions. [2019-10-22 11:22:43,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:43,798 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 81 transitions. [2019-10-22 11:22:43,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:22:43,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:43,799 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 11:22:43,800 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:43,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1840859928, now seen corresponding path program 1 times [2019-10-22 11:22:43,800 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:43,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671352682] [2019-10-22 11:22:43,800 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:43,801 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:43,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:43,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:43,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671352682] [2019-10-22 11:22:43,883 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:43,883 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:43,883 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253174436] [2019-10-22 11:22:43,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:43,884 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:43,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:43,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:43,884 INFO L87 Difference]: Start difference. First operand 57 states and 81 transitions. Second operand 3 states. [2019-10-22 11:22:43,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:43,899 INFO L93 Difference]: Finished difference Result 107 states and 155 transitions. [2019-10-22 11:22:43,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:43,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:22:43,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:43,901 INFO L225 Difference]: With dead ends: 107 [2019-10-22 11:22:43,901 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 11:22:43,902 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 11:22:43,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 11:22:43,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-10-22 11:22:43,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-22 11:22:43,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2019-10-22 11:22:43,912 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 80 transitions. Word has length 26 [2019-10-22 11:22:43,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:43,913 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 80 transitions. [2019-10-22 11:22:43,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2019-10-22 11:22:43,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:22:43,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:43,914 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:43,914 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:43,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:43,914 INFO L82 PathProgramCache]: Analyzing trace with hash 655441665, now seen corresponding path program 1 times [2019-10-22 11:22:43,914 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:43,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829160896] [2019-10-22 11:22:43,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:43,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:43,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:43,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:43,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829160896] [2019-10-22 11:22:43,975 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:43,975 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:43,975 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861094999] [2019-10-22 11:22:43,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:43,976 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:43,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:43,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:43,976 INFO L87 Difference]: Start difference. First operand 57 states and 80 transitions. Second operand 3 states. [2019-10-22 11:22:44,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:44,031 INFO L93 Difference]: Finished difference Result 131 states and 187 transitions. [2019-10-22 11:22:44,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:44,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-22 11:22:44,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:44,033 INFO L225 Difference]: With dead ends: 131 [2019-10-22 11:22:44,033 INFO L226 Difference]: Without dead ends: 81 [2019-10-22 11:22:44,033 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 11:22:44,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-10-22 11:22:44,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2019-10-22 11:22:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-22 11:22:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 110 transitions. [2019-10-22 11:22:44,046 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 110 transitions. Word has length 28 [2019-10-22 11:22:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:44,046 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 110 transitions. [2019-10-22 11:22:44,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2019-10-22 11:22:44,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:22:44,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:44,047 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:44,048 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:44,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:44,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1335383949, now seen corresponding path program 1 times [2019-10-22 11:22:44,049 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:44,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095826805] [2019-10-22 11:22:44,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:44,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095826805] [2019-10-22 11:22:44,136 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:44,136 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:44,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509817689] [2019-10-22 11:22:44,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:44,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:44,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:44,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:44,137 INFO L87 Difference]: Start difference. First operand 79 states and 110 transitions. Second operand 5 states. [2019-10-22 11:22:44,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:44,285 INFO L93 Difference]: Finished difference Result 266 states and 375 transitions. [2019-10-22 11:22:44,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:22:44,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-22 11:22:44,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:44,287 INFO L225 Difference]: With dead ends: 266 [2019-10-22 11:22:44,287 INFO L226 Difference]: Without dead ends: 194 [2019-10-22 11:22:44,287 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 11:22:44,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-10-22 11:22:44,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 78. [2019-10-22 11:22:44,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-10-22 11:22:44,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 107 transitions. [2019-10-22 11:22:44,302 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 107 transitions. Word has length 34 [2019-10-22 11:22:44,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:44,302 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 107 transitions. [2019-10-22 11:22:44,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:44,302 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 107 transitions. [2019-10-22 11:22:44,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:22:44,309 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:44,309 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:44,309 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:44,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:44,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1094266678, now seen corresponding path program 1 times [2019-10-22 11:22:44,310 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:44,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729586812] [2019-10-22 11:22:44,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:44,388 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 11:22:44,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729586812] [2019-10-22 11:22:44,389 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:44,389 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:22:44,389 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707601721] [2019-10-22 11:22:44,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:44,390 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:44,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:44,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:44,391 INFO L87 Difference]: Start difference. First operand 78 states and 107 transitions. Second operand 5 states. [2019-10-22 11:22:44,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:44,462 INFO L93 Difference]: Finished difference Result 198 states and 272 transitions. [2019-10-22 11:22:44,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:44,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-10-22 11:22:44,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:44,465 INFO L225 Difference]: With dead ends: 198 [2019-10-22 11:22:44,466 INFO L226 Difference]: Without dead ends: 127 [2019-10-22 11:22:44,466 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 11:22:44,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-22 11:22:44,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 84. [2019-10-22 11:22:44,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-10-22 11:22:44,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 113 transitions. [2019-10-22 11:22:44,477 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 113 transitions. Word has length 37 [2019-10-22 11:22:44,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:44,478 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 113 transitions. [2019-10-22 11:22:44,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:44,478 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 113 transitions. [2019-10-22 11:22:44,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:22:44,479 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:44,479 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:44,479 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:44,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:44,487 INFO L82 PathProgramCache]: Analyzing trace with hash 83149428, now seen corresponding path program 1 times [2019-10-22 11:22:44,488 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:44,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014160116] [2019-10-22 11:22:44,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:44,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:44,541 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014160116] [2019-10-22 11:22:44,542 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:44,542 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:44,542 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993803833] [2019-10-22 11:22:44,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:44,542 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:44,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:44,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:44,543 INFO L87 Difference]: Start difference. First operand 84 states and 113 transitions. Second operand 4 states. [2019-10-22 11:22:44,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:44,585 INFO L93 Difference]: Finished difference Result 193 states and 260 transitions. [2019-10-22 11:22:44,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:44,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-10-22 11:22:44,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:44,586 INFO L225 Difference]: With dead ends: 193 [2019-10-22 11:22:44,586 INFO L226 Difference]: Without dead ends: 116 [2019-10-22 11:22:44,587 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 11:22:44,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-22 11:22:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 88. [2019-10-22 11:22:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-22 11:22:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 117 transitions. [2019-10-22 11:22:44,602 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 117 transitions. Word has length 37 [2019-10-22 11:22:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:44,603 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 117 transitions. [2019-10-22 11:22:44,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:44,606 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 117 transitions. [2019-10-22 11:22:44,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:22:44,606 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:44,606 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:44,607 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:44,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:44,607 INFO L82 PathProgramCache]: Analyzing trace with hash -937918926, now seen corresponding path program 1 times [2019-10-22 11:22:44,607 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:44,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743452099] [2019-10-22 11:22:44,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:44,656 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743452099] [2019-10-22 11:22:44,656 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:44,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:44,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224232803] [2019-10-22 11:22:44,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:44,657 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:44,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:44,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:44,657 INFO L87 Difference]: Start difference. First operand 88 states and 117 transitions. Second operand 3 states. [2019-10-22 11:22:44,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:44,684 INFO L93 Difference]: Finished difference Result 197 states and 263 transitions. [2019-10-22 11:22:44,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:44,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2019-10-22 11:22:44,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:44,685 INFO L225 Difference]: With dead ends: 197 [2019-10-22 11:22:44,685 INFO L226 Difference]: Without dead ends: 116 [2019-10-22 11:22:44,685 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 11:22:44,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-22 11:22:44,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-22 11:22:44,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-22 11:22:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 151 transitions. [2019-10-22 11:22:44,701 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 151 transitions. Word has length 37 [2019-10-22 11:22:44,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:44,701 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 151 transitions. [2019-10-22 11:22:44,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:44,702 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 151 transitions. [2019-10-22 11:22:44,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 11:22:44,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:44,703 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] [2019-10-22 11:22:44,703 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:44,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:44,706 INFO L82 PathProgramCache]: Analyzing trace with hash 597879026, now seen corresponding path program 1 times [2019-10-22 11:22:44,706 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:44,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751375552] [2019-10-22 11:22:44,707 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,707 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:44,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:44,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:44,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751375552] [2019-10-22 11:22:44,814 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:44,814 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:22:44,814 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082643155] [2019-10-22 11:22:44,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:44,815 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:44,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:44,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:44,815 INFO L87 Difference]: Start difference. First operand 116 states and 151 transitions. Second operand 6 states. [2019-10-22 11:22:44,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:44,987 INFO L93 Difference]: Finished difference Result 437 states and 583 transitions. [2019-10-22 11:22:44,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:22:44,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-10-22 11:22:44,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:44,989 INFO L225 Difference]: With dead ends: 437 [2019-10-22 11:22:44,989 INFO L226 Difference]: Without dead ends: 356 [2019-10-22 11:22:44,989 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:22:44,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-22 11:22:45,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 161. [2019-10-22 11:22:45,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-10-22 11:22:45,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 207 transitions. [2019-10-22 11:22:45,003 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 207 transitions. Word has length 38 [2019-10-22 11:22:45,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:45,004 INFO L462 AbstractCegarLoop]: Abstraction has 161 states and 207 transitions. [2019-10-22 11:22:45,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:45,004 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 207 transitions. [2019-10-22 11:22:45,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-22 11:22:45,005 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:45,005 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:45,005 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:45,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:45,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1086391584, now seen corresponding path program 1 times [2019-10-22 11:22:45,005 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:45,006 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732800479] [2019-10-22 11:22:45,006 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:45,006 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:45,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:45,061 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:45,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732800479] [2019-10-22 11:22:45,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277379506] [2019-10-22 11:22:45,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 11:22:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:45,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:45,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:45,240 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:45,241 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:45,268 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:45,269 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [519496784] [2019-10-22 11:22:45,276 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 62 [2019-10-22 11:22:45,319 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:22:45,320 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:22:45,732 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:45,733 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 11:22:45,737 INFO L168 Benchmark]: Toolchain (without parser) took 3946.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.6 MB in the beginning and 989.4 MB in the end (delta: -53.8 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,738 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:45,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,739 INFO L168 Benchmark]: Boogie Preprocessor took 42.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,740 INFO L168 Benchmark]: RCFGBuilder took 868.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,740 INFO L168 Benchmark]: TraceAbstraction took 2494.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.4 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,742 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 958.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 477.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 868.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2494.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.4 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 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 11:22:47,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:47,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:47,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:47,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:47,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:47,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:47,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:47,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:47,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:47,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:47,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:47,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:47,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:47,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:47,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:47,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:47,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:47,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:47,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:47,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:47,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:47,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:47,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:47,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:47,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:47,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:47,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:47,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:47,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:47,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:47,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:47,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:47,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:47,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:47,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:47,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:47,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:47,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:47,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:47,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:47,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:47,651 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:47,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:47,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:47,652 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:47,652 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:47,652 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:47,653 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:47,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:47,653 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:47,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:47,654 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:47,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:47,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:47,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:47,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:47,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:47,655 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:47,655 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:47,655 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:47,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:47,656 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:47,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:47,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:47,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:47,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:47,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:47,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:47,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:47,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:47,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:47,657 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:47,657 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:47,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:47,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:47,658 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_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 -> 9bd2750697477c749a894a241eb18460dbfa6e62 [2019-10-22 11:22:47,684 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:47,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:47,697 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:47,698 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:47,698 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:47,699 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2019-10-22 11:22:47,739 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data/a66fe1e59/f1d1d81b98d3400daee57429a62e8a2a/FLAG8c24e74b0 [2019-10-22 11:22:48,191 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:48,191 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2019-10-22 11:22:48,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data/a66fe1e59/f1d1d81b98d3400daee57429a62e8a2a/FLAG8c24e74b0 [2019-10-22 11:22:48,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/data/a66fe1e59/f1d1d81b98d3400daee57429a62e8a2a [2019-10-22 11:22:48,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:48,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:48,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:48,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:48,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:48,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fad9d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48, skipping insertion in model container [2019-10-22 11:22:48,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,568 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:48,607 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:48,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:48,957 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:49,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:49,134 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:49,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49 WrapperNode [2019-10-22 11:22:49,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:49,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:49,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:49,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:49,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... [2019-10-22 11:22:49,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... [2019-10-22 11:22:49,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:49,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:49,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:49,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:49,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... [2019-10-22 11:22:49,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... [2019-10-22 11:22:49,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... [2019-10-22 11:22:49,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... [2019-10-22 11:22:49,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... [2019-10-22 11:22:49,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... [2019-10-22 11:22:49,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... [2019-10-22 11:22:49,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:49,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:49,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:49,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:49,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 11:22:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:22:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:49,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:50,143 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:50,143 INFO L284 CfgBuilder]: Removed 206 assume(true) statements. [2019-10-22 11:22:50,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:50 BoogieIcfgContainer [2019-10-22 11:22:50,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:50,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:50,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:50,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:50,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:48" (1/3) ... [2019-10-22 11:22:50,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18509395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:50, skipping insertion in model container [2019-10-22 11:22:50,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:49" (2/3) ... [2019-10-22 11:22:50,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18509395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:50, skipping insertion in model container [2019-10-22 11:22:50,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:50" (3/3) ... [2019-10-22 11:22:50,153 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2019-10-22 11:22:50,164 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:50,173 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:22:50,187 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:22:50,216 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:50,216 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:50,216 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:50,216 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:50,219 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:50,220 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:50,220 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:50,220 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:50,235 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2019-10-22 11:22:50,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:22:50,241 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:50,241 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 11:22:50,243 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:50,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:50,249 INFO L82 PathProgramCache]: Analyzing trace with hash -947048074, now seen corresponding path program 1 times [2019-10-22 11:22:50,259 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:50,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [334718895] [2019-10-22 11:22:50,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 11:22:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:50,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:22:50,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:50,485 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:50,493 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [334718895] [2019-10-22 11:22:50,494 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:50,494 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:22:50,494 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214999164] [2019-10-22 11:22:50,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:22:50,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:50,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:22:50,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:50,514 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2019-10-22 11:22:50,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:50,546 INFO L93 Difference]: Finished difference Result 281 states and 418 transitions. [2019-10-22 11:22:50,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:22:50,548 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-22 11:22:50,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:50,559 INFO L225 Difference]: With dead ends: 281 [2019-10-22 11:22:50,559 INFO L226 Difference]: Without dead ends: 140 [2019-10-22 11:22:50,563 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:50,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-10-22 11:22:50,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-10-22 11:22:50,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-22 11:22:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 201 transitions. [2019-10-22 11:22:50,601 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 201 transitions. Word has length 19 [2019-10-22 11:22:50,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:50,601 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 201 transitions. [2019-10-22 11:22:50,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:22:50,602 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 201 transitions. [2019-10-22 11:22:50,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 11:22:50,603 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:50,603 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:50,804 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:50,804 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:50,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:50,804 INFO L82 PathProgramCache]: Analyzing trace with hash 858971479, now seen corresponding path program 1 times [2019-10-22 11:22:50,805 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:50,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2017908103] [2019-10-22 11:22:50,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 11:22:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:50,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:50,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:50,972 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:50,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:50,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2017908103] [2019-10-22 11:22:50,984 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:50,984 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:22:50,985 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843817258] [2019-10-22 11:22:50,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:50,986 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:50,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:50,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:50,987 INFO L87 Difference]: Start difference. First operand 140 states and 201 transitions. Second operand 4 states. [2019-10-22 11:22:51,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:51,025 INFO L93 Difference]: Finished difference Result 273 states and 395 transitions. [2019-10-22 11:22:51,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:51,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 11:22:51,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:51,027 INFO L225 Difference]: With dead ends: 273 [2019-10-22 11:22:51,027 INFO L226 Difference]: Without dead ends: 140 [2019-10-22 11:22:51,029 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:51,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-10-22 11:22:51,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-10-22 11:22:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-22 11:22:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 198 transitions. [2019-10-22 11:22:51,043 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 198 transitions. Word has length 20 [2019-10-22 11:22:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:51,043 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 198 transitions. [2019-10-22 11:22:51,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 198 transitions. [2019-10-22 11:22:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 11:22:51,044 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:51,044 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 11:22:51,245 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:51,245 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:51,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:51,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1953452608, now seen corresponding path program 1 times [2019-10-22 11:22:51,246 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:51,246 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [171798048] [2019-10-22 11:22:51,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 11:22:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:51,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:51,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:51,391 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:51,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [171798048] [2019-10-22 11:22:51,394 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:51,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:22:51,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399461507] [2019-10-22 11:22:51,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:51,395 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:51,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:51,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:51,396 INFO L87 Difference]: Start difference. First operand 140 states and 198 transitions. Second operand 3 states. [2019-10-22 11:22:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:51,576 INFO L93 Difference]: Finished difference Result 328 states and 463 transitions. [2019-10-22 11:22:51,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:51,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 11:22:51,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:51,578 INFO L225 Difference]: With dead ends: 328 [2019-10-22 11:22:51,578 INFO L226 Difference]: Without dead ends: 195 [2019-10-22 11:22:51,579 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:51,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-10-22 11:22:51,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 189. [2019-10-22 11:22:51,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-10-22 11:22:51,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 260 transitions. [2019-10-22 11:22:51,597 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 260 transitions. Word has length 22 [2019-10-22 11:22:51,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:51,597 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 260 transitions. [2019-10-22 11:22:51,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:51,598 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 260 transitions. [2019-10-22 11:22:51,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:22:51,598 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:51,598 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] [2019-10-22 11:22:51,799 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:51,800 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:51,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:51,800 INFO L82 PathProgramCache]: Analyzing trace with hash 134468430, now seen corresponding path program 1 times [2019-10-22 11:22:51,800 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:51,801 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [460168540] [2019-10-22 11:22:51,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 11:22:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:51,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:51,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:51,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:51,962 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:51,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:51,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [460168540] [2019-10-22 11:22:51,981 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:51,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:22:51,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819299538] [2019-10-22 11:22:51,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:51,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:51,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:51,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:51,983 INFO L87 Difference]: Start difference. First operand 189 states and 260 transitions. Second operand 6 states. [2019-10-22 11:22:52,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:52,136 INFO L93 Difference]: Finished difference Result 711 states and 977 transitions. [2019-10-22 11:22:52,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:52,137 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2019-10-22 11:22:52,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:52,139 INFO L225 Difference]: With dead ends: 711 [2019-10-22 11:22:52,140 INFO L226 Difference]: Without dead ends: 529 [2019-10-22 11:22:52,141 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:22:52,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-10-22 11:22:52,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 201. [2019-10-22 11:22:52,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-10-22 11:22:52,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 272 transitions. [2019-10-22 11:22:52,166 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 272 transitions. Word has length 28 [2019-10-22 11:22:52,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:52,166 INFO L462 AbstractCegarLoop]: Abstraction has 201 states and 272 transitions. [2019-10-22 11:22:52,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:52,167 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 272 transitions. [2019-10-22 11:22:52,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:22:52,167 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:52,168 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:52,368 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:52,369 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:52,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:52,369 INFO L82 PathProgramCache]: Analyzing trace with hash -566596148, now seen corresponding path program 1 times [2019-10-22 11:22:52,370 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:52,370 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1282174293] [2019-10-22 11:22:52,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 11:22:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:52,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:52,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:52,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:52,523 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:52,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:52,528 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1282174293] [2019-10-22 11:22:52,528 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:52,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:52,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338710578] [2019-10-22 11:22:52,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:52,529 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:52,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:52,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:52,529 INFO L87 Difference]: Start difference. First operand 201 states and 272 transitions. Second operand 5 states. [2019-10-22 11:22:52,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:52,875 INFO L93 Difference]: Finished difference Result 696 states and 935 transitions. [2019-10-22 11:22:52,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:22:52,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 11:22:52,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:52,877 INFO L225 Difference]: With dead ends: 696 [2019-10-22 11:22:52,877 INFO L226 Difference]: Without dead ends: 502 [2019-10-22 11:22:52,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:52,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2019-10-22 11:22:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 198. [2019-10-22 11:22:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-10-22 11:22:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 263 transitions. [2019-10-22 11:22:52,901 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 263 transitions. Word has length 28 [2019-10-22 11:22:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:52,901 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 263 transitions. [2019-10-22 11:22:52,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:52,901 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 263 transitions. [2019-10-22 11:22:52,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:22:52,902 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:52,902 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 11:22:53,103 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:53,103 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:53,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1586069379, now seen corresponding path program 1 times [2019-10-22 11:22:53,104 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:53,107 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1341692298] [2019-10-22 11:22:53,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/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 11:22:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:53,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:53,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:53,252 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:53,255 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1341692298] [2019-10-22 11:22:53,255 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:53,255 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:53,255 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598757698] [2019-10-22 11:22:53,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:53,256 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:53,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:53,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:53,256 INFO L87 Difference]: Start difference. First operand 198 states and 263 transitions. Second operand 5 states. [2019-10-22 11:22:53,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:53,407 INFO L93 Difference]: Finished difference Result 502 states and 658 transitions. [2019-10-22 11:22:53,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:53,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:22:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:53,409 INFO L225 Difference]: With dead ends: 502 [2019-10-22 11:22:53,409 INFO L226 Difference]: Without dead ends: 311 [2019-10-22 11:22:53,410 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:22:53,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2019-10-22 11:22:53,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 216. [2019-10-22 11:22:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-10-22 11:22:53,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 281 transitions. [2019-10-22 11:22:53,432 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 281 transitions. Word has length 31 [2019-10-22 11:22:53,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:53,432 INFO L462 AbstractCegarLoop]: Abstraction has 216 states and 281 transitions. [2019-10-22 11:22:53,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:53,433 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 281 transitions. [2019-10-22 11:22:53,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:22:53,433 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:53,434 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 11:22:53,634 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:53,635 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:53,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:53,635 INFO L82 PathProgramCache]: Analyzing trace with hash 676712313, now seen corresponding path program 1 times [2019-10-22 11:22:53,635 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:53,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1293787399] [2019-10-22 11:22:53,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:53,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:53,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:53,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:53,861 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:53,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1293787399] [2019-10-22 11:22:53,875 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:53,875 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:22:53,875 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007008494] [2019-10-22 11:22:53,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:53,876 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:53,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:53,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:53,876 INFO L87 Difference]: Start difference. First operand 216 states and 281 transitions. Second operand 4 states. [2019-10-22 11:22:53,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:53,894 INFO L93 Difference]: Finished difference Result 216 states and 281 transitions. [2019-10-22 11:22:53,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:53,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 11:22:53,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:53,897 INFO L225 Difference]: With dead ends: 216 [2019-10-22 11:22:53,897 INFO L226 Difference]: Without dead ends: 88 [2019-10-22 11:22:53,897 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:53,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-10-22 11:22:53,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-10-22 11:22:53,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-22 11:22:53,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 117 transitions. [2019-10-22 11:22:53,908 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 117 transitions. Word has length 31 [2019-10-22 11:22:53,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:53,909 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 117 transitions. [2019-10-22 11:22:53,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 117 transitions. [2019-10-22 11:22:53,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 11:22:53,913 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:53,913 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:54,113 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:54,114 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:54,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:54,114 INFO L82 PathProgramCache]: Analyzing trace with hash -937918926, now seen corresponding path program 1 times [2019-10-22 11:22:54,114 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:54,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [262312282] [2019-10-22 11:22:54,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:54,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:54,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:54,361 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:54,375 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [262312282] [2019-10-22 11:22:54,375 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:54,375 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:22:54,375 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890433494] [2019-10-22 11:22:54,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:54,376 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:54,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:54,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:54,376 INFO L87 Difference]: Start difference. First operand 88 states and 117 transitions. Second operand 4 states. [2019-10-22 11:22:54,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:54,433 INFO L93 Difference]: Finished difference Result 258 states and 347 transitions. [2019-10-22 11:22:54,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:54,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-10-22 11:22:54,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:54,435 INFO L225 Difference]: With dead ends: 258 [2019-10-22 11:22:54,435 INFO L226 Difference]: Without dead ends: 177 [2019-10-22 11:22:54,435 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:54,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-10-22 11:22:54,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 147. [2019-10-22 11:22:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-22 11:22:54,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 196 transitions. [2019-10-22 11:22:54,448 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 196 transitions. Word has length 37 [2019-10-22 11:22:54,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:54,449 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 196 transitions. [2019-10-22 11:22:54,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:54,449 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 196 transitions. [2019-10-22 11:22:54,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 11:22:54,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:54,450 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] [2019-10-22 11:22:54,650 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:54,651 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:54,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:54,651 INFO L82 PathProgramCache]: Analyzing trace with hash 597879026, now seen corresponding path program 1 times [2019-10-22 11:22:54,653 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:54,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [191449874] [2019-10-22 11:22:54,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:54,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:54,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:54,802 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:54,807 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [191449874] [2019-10-22 11:22:54,807 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:54,807 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:54,807 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396854461] [2019-10-22 11:22:54,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:54,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:54,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:54,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:54,808 INFO L87 Difference]: Start difference. First operand 147 states and 196 transitions. Second operand 6 states. [2019-10-22 11:22:55,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:55,168 INFO L93 Difference]: Finished difference Result 714 states and 962 transitions. [2019-10-22 11:22:55,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:22:55,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-10-22 11:22:55,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:55,171 INFO L225 Difference]: With dead ends: 714 [2019-10-22 11:22:55,172 INFO L226 Difference]: Without dead ends: 574 [2019-10-22 11:22:55,172 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:22:55,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2019-10-22 11:22:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 260. [2019-10-22 11:22:55,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2019-10-22 11:22:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 342 transitions. [2019-10-22 11:22:55,200 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 342 transitions. Word has length 38 [2019-10-22 11:22:55,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:55,200 INFO L462 AbstractCegarLoop]: Abstraction has 260 states and 342 transitions. [2019-10-22 11:22:55,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:55,200 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 342 transitions. [2019-10-22 11:22:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-22 11:22:55,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:55,204 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:55,404 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:55,405 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:55,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:55,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1086391584, now seen corresponding path program 1 times [2019-10-22 11:22:55,405 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:55,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1958064740] [2019-10-22 11:22:55,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:55,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:55,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:55,569 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:55,569 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:55,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1958064740] [2019-10-22 11:22:55,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458308675] [2019-10-22 11:22:55,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:55,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:55,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:55,728 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:55,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:55,737 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:22:55,737 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2019-10-22 11:22:55,738 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331306268] [2019-10-22 11:22:55,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:22:55,739 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:55,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:22:55,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:55,740 INFO L87 Difference]: Start difference. First operand 260 states and 342 transitions. Second operand 8 states. [2019-10-22 11:22:56,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:56,088 INFO L93 Difference]: Finished difference Result 646 states and 874 transitions. [2019-10-22 11:22:56,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:22:56,088 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2019-10-22 11:22:56,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:56,090 INFO L225 Difference]: With dead ends: 646 [2019-10-22 11:22:56,090 INFO L226 Difference]: Without dead ends: 393 [2019-10-22 11:22:56,090 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:22:56,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2019-10-22 11:22:56,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 242. [2019-10-22 11:22:56,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2019-10-22 11:22:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 310 transitions. [2019-10-22 11:22:56,116 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 310 transitions. Word has length 61 [2019-10-22 11:22:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:56,116 INFO L462 AbstractCegarLoop]: Abstraction has 242 states and 310 transitions. [2019-10-22 11:22:56,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:22:56,117 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 310 transitions. [2019-10-22 11:22:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-22 11:22:56,118 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:56,118 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:56,519 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:56,519 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:56,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:56,520 INFO L82 PathProgramCache]: Analyzing trace with hash 2105145503, now seen corresponding path program 1 times [2019-10-22 11:22:56,520 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:56,520 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2055377186] [2019-10-22 11:22:56,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:56,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:56,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:22:56,685 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 11:22:56,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2055377186] [2019-10-22 11:22:56,694 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:56,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:56,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589654299] [2019-10-22 11:22:56,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:56,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:56,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:56,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:56,696 INFO L87 Difference]: Start difference. First operand 242 states and 310 transitions. Second operand 5 states. [2019-10-22 11:22:56,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:56,758 INFO L93 Difference]: Finished difference Result 596 states and 774 transitions. [2019-10-22 11:22:56,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:56,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-10-22 11:22:56,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:56,759 INFO L225 Difference]: With dead ends: 596 [2019-10-22 11:22:56,760 INFO L226 Difference]: Without dead ends: 361 [2019-10-22 11:22:56,760 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:22:56,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-10-22 11:22:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 251. [2019-10-22 11:22:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-10-22 11:22:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 319 transitions. [2019-10-22 11:22:56,783 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 319 transitions. Word has length 109 [2019-10-22 11:22:56,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:56,783 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 319 transitions. [2019-10-22 11:22:56,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 319 transitions. [2019-10-22 11:22:56,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-22 11:22:56,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:56,784 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:56,985 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:56,985 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:56,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:56,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1530290271, now seen corresponding path program 1 times [2019-10-22 11:22:56,986 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:56,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1407260320] [2019-10-22 11:22:56,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:57,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:22:57,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:57,177 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:57,178 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:57,223 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:57,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1407260320] [2019-10-22 11:22:57,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582982074] [2019-10-22 11:22:57,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:57,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:22:57,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:22:57,388 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:57,490 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 11:22:57,491 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:22:57,491 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7, 8] total 18 [2019-10-22 11:22:57,491 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875304582] [2019-10-22 11:22:57,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:22:57,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:57,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:22:57,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2019-10-22 11:22:57,492 INFO L87 Difference]: Start difference. First operand 251 states and 319 transitions. Second operand 8 states. [2019-10-22 11:22:57,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:57,940 INFO L93 Difference]: Finished difference Result 1049 states and 1340 transitions. [2019-10-22 11:22:57,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-22 11:22:57,941 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-10-22 11:22:57,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:57,944 INFO L225 Difference]: With dead ends: 1049 [2019-10-22 11:22:57,944 INFO L226 Difference]: Without dead ends: 805 [2019-10-22 11:22:57,945 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2019-10-22 11:22:57,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2019-10-22 11:22:58,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 405. [2019-10-22 11:22:58,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-22 11:22:58,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 515 transitions. [2019-10-22 11:22:58,004 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 515 transitions. Word has length 109 [2019-10-22 11:22:58,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:58,005 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 515 transitions. [2019-10-22 11:22:58,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:22:58,005 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 515 transitions. [2019-10-22 11:22:58,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-22 11:22:58,006 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:58,006 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:58,407 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:58,407 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:58,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:58,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1599961052, now seen corresponding path program 1 times [2019-10-22 11:22:58,407 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:58,408 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [656700396] [2019-10-22 11:22:58,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:58,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:22:58,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:58,622 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:22:58,624 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:58,663 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-22 11:22:58,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [656700396] [2019-10-22 11:22:58,663 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:58,663 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:22:58,663 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718708514] [2019-10-22 11:22:58,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:22:58,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:58,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:22:58,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:58,664 INFO L87 Difference]: Start difference. First operand 405 states and 515 transitions. Second operand 8 states. [2019-10-22 11:22:58,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:58,989 INFO L93 Difference]: Finished difference Result 942 states and 1205 transitions. [2019-10-22 11:22:58,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:22:58,989 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2019-10-22 11:22:58,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:58,991 INFO L225 Difference]: With dead ends: 942 [2019-10-22 11:22:58,991 INFO L226 Difference]: Without dead ends: 544 [2019-10-22 11:22:58,992 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:22:58,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-22 11:22:59,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 405. [2019-10-22 11:22:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-22 11:22:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 509 transitions. [2019-10-22 11:22:59,037 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 509 transitions. Word has length 111 [2019-10-22 11:22:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:59,037 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 509 transitions. [2019-10-22 11:22:59,037 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:22:59,037 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 509 transitions. [2019-10-22 11:22:59,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-22 11:22:59,038 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:59,038 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:59,239 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:59,239 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:59,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:59,239 INFO L82 PathProgramCache]: Analyzing trace with hash 2140996148, now seen corresponding path program 1 times [2019-10-22 11:22:59,240 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:59,240 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [731537866] [2019-10-22 11:22:59,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:59,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:22:59,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:59,420 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:59,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [731537866] [2019-10-22 11:22:59,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418747083] [2019-10-22 11:22:59,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:59,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:22:59,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:59,561 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:59,576 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-22 11:22:59,576 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:22:59,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7] total 9 [2019-10-22 11:22:59,576 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348801490] [2019-10-22 11:22:59,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:22:59,577 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:59,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:22:59,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:59,577 INFO L87 Difference]: Start difference. First operand 405 states and 509 transitions. Second operand 9 states. [2019-10-22 11:22:59,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:59,966 INFO L93 Difference]: Finished difference Result 962 states and 1219 transitions. [2019-10-22 11:22:59,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:22:59,967 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2019-10-22 11:22:59,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:59,969 INFO L225 Difference]: With dead ends: 962 [2019-10-22 11:22:59,969 INFO L226 Difference]: Without dead ends: 655 [2019-10-22 11:22:59,970 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:22:59,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2019-10-22 11:23:00,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 466. [2019-10-22 11:23:00,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-10-22 11:23:00,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 586 transitions. [2019-10-22 11:23:00,021 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 586 transitions. Word has length 112 [2019-10-22 11:23:00,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:00,022 INFO L462 AbstractCegarLoop]: Abstraction has 466 states and 586 transitions. [2019-10-22 11:23:00,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:23:00,022 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 586 transitions. [2019-10-22 11:23:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-22 11:23:00,025 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:00,025 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:00,426 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:00,426 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:00,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:00,426 INFO L82 PathProgramCache]: Analyzing trace with hash 843000367, now seen corresponding path program 1 times [2019-10-22 11:23:00,426 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:00,427 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1913702573] [2019-10-22 11:23:00,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:00,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:23:00,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 22 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:23:00,787 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 22 proven. 84 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 11:23:00,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1913702573] [2019-10-22 11:23:00,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32825047] [2019-10-22 11:23:00,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:00,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 11:23:00,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-22 11:23:01,050 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:01,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:23:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-22 11:23:01,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-22 11:23:01,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 7] total 15 [2019-10-22 11:23:01,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131269682] [2019-10-22 11:23:01,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:01,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:01,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:01,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:23:01,117 INFO L87 Difference]: Start difference. First operand 466 states and 586 transitions. Second operand 5 states. [2019-10-22 11:23:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:01,487 INFO L93 Difference]: Finished difference Result 957 states and 1202 transitions. [2019-10-22 11:23:01,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:23:01,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-10-22 11:23:01,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:01,489 INFO L225 Difference]: With dead ends: 957 [2019-10-22 11:23:01,489 INFO L226 Difference]: Without dead ends: 583 [2019-10-22 11:23:01,490 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 437 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:23:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-22 11:23:01,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 412. [2019-10-22 11:23:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-10-22 11:23:01,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 516 transitions. [2019-10-22 11:23:01,544 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 516 transitions. Word has length 114 [2019-10-22 11:23:01,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:01,544 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 516 transitions. [2019-10-22 11:23:01,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:01,544 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 516 transitions. [2019-10-22 11:23:01,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-22 11:23:01,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:01,545 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:01,946 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:01,946 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:01,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:01,947 INFO L82 PathProgramCache]: Analyzing trace with hash -843179471, now seen corresponding path program 1 times [2019-10-22 11:23:01,947 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:01,947 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [775605945] [2019-10-22 11:23:01,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:02,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:23:02,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:23:02,083 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:02,107 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 11:23:02,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [775605945] [2019-10-22 11:23:02,107 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:02,107 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:23:02,107 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660981219] [2019-10-22 11:23:02,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:23:02,108 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:02,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:23:02,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:02,108 INFO L87 Difference]: Start difference. First operand 412 states and 516 transitions. Second operand 8 states. [2019-10-22 11:23:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:02,184 INFO L93 Difference]: Finished difference Result 622 states and 773 transitions. [2019-10-22 11:23:02,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:23:02,185 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 114 [2019-10-22 11:23:02,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:02,185 INFO L225 Difference]: With dead ends: 622 [2019-10-22 11:23:02,185 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:23:02,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:23:02,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:23:02,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:23:02,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:23:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:23:02,187 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2019-10-22 11:23:02,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:02,187 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:23:02,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:23:02,187 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:23:02,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:23:02,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:02,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:23:02,704 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 133 [2019-10-22 11:23:02,910 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 151 [2019-10-22 11:23:03,160 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 118 [2019-10-22 11:23:03,306 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 102 [2019-10-22 11:23:03,465 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 122 [2019-10-22 11:23:03,600 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 119 [2019-10-22 11:23:03,729 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 151 [2019-10-22 11:23:04,283 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 24 [2019-10-22 11:23:04,443 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 21 [2019-10-22 11:23:05,061 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 22 [2019-10-22 11:23:05,239 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 22 [2019-10-22 11:23:05,403 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 24 [2019-10-22 11:23:05,852 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 26 [2019-10-22 11:23:06,302 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 26 [2019-10-22 11:23:06,421 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 21 [2019-10-22 11:23:06,782 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 26 [2019-10-22 11:23:07,144 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 22 [2019-10-22 11:23:07,649 WARN L191 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 22 [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L828(lines 828 836) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L828-1(lines 828 836) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L828-2(lines 828 836) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L828-3(lines 828 836) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L828-4(lines 828 836) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L828-5(lines 828 836) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L697(lines 697 707) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L697-2(lines 697 707) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L697-4(lines 697 707) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 206) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L202-3(lines 202 206) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L103(lines 103 107) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L103-1(lines 103 107) no Hoare annotation was computed. [2019-10-22 11:23:07,653 INFO L443 ceAbstractionStarter]: For program point L202-6(lines 202 206) no Hoare annotation was computed. [2019-10-22 11:23:07,654 INFO L439 ceAbstractionStarter]: At program point L995(lines 980 998) the Hoare annotation is: (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= ULTIMATE.start_isLowWaterLevel_~tmp~10 (_ bv0 32)) (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~3 (_ bv4294967295 32)) (_ bv0 32))) [2019-10-22 11:23:07,654 INFO L439 ceAbstractionStarter]: At program point L995-1(lines 980 998) the Hoare annotation is: false [2019-10-22 11:23:07,654 INFO L439 ceAbstractionStarter]: At program point L995-2(lines 980 998) the Hoare annotation is: false [2019-10-22 11:23:07,654 INFO L443 ceAbstractionStarter]: For program point L698(lines 698 704) no Hoare annotation was computed. [2019-10-22 11:23:07,654 INFO L443 ceAbstractionStarter]: For program point L698-2(lines 698 704) no Hoare annotation was computed. [2019-10-22 11:23:07,654 INFO L443 ceAbstractionStarter]: For program point L698-4(lines 698 704) no Hoare annotation was computed. [2019-10-22 11:23:07,654 INFO L439 ceAbstractionStarter]: At program point L799(lines 799 805) the Hoare annotation is: (let ((.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse1 (and (= (_ bv0 32) ~pumpRunning~0) .cse3)) (.cse2 (= (_ bv2 32) ~waterLevel~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and .cse0 .cse1) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse2 .cse0 .cse1) (and (= (_ bv1 32) ~pumpRunning~0) .cse2 .cse3 .cse0)))) [2019-10-22 11:23:07,654 INFO L439 ceAbstractionStarter]: At program point L799-1(lines 799 805) the Hoare annotation is: false [2019-10-22 11:23:07,654 INFO L439 ceAbstractionStarter]: At program point L799-2(lines 799 805) the Hoare annotation is: false [2019-10-22 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L271(lines 266 274) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (and .cse0 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse3)) (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2 .cse3 .cse4))) [2019-10-22 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L271-1(lines 266 274) the Hoare annotation is: false [2019-10-22 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L271-2(lines 266 274) the Hoare annotation is: false [2019-10-22 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L239(lines 234 242) the Hoare annotation is: false [2019-10-22 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L239-1(lines 234 242) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv2 32) ~waterLevel~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L239-2(lines 234 242) the Hoare annotation is: false [2019-10-22 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L239-3(lines 234 242) the Hoare annotation is: false [2019-10-22 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L239-4(lines 234 242) the Hoare annotation is: false [2019-10-22 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L74(lines 1 998) 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 11:23:07,655 INFO L439 ceAbstractionStarter]: At program point L239-5(lines 234 242) the Hoare annotation is: false [2019-10-22 11:23:07,655 INFO L443 ceAbstractionStarter]: For program point L735(lines 735 741) no Hoare annotation was computed. [2019-10-22 11:23:07,656 INFO L439 ceAbstractionStarter]: At program point L735-1(lines 735 741) the Hoare annotation is: (let ((.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (and (= (_ bv0 32) ~pumpRunning~0) .cse1))) (or (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse1 .cse2) (and (and .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 .cse2 .cse3)))) [2019-10-22 11:23:07,656 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:23:07,656 INFO L443 ceAbstractionStarter]: For program point L176(lines 176 183) no Hoare annotation was computed. [2019-10-22 11:23:07,656 INFO L446 ceAbstractionStarter]: At program point L176-1(lines 176 183) the Hoare annotation is: true [2019-10-22 11:23:07,656 INFO L443 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2019-10-22 11:23:07,656 INFO L443 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2019-10-22 11:23:07,656 INFO L443 ceAbstractionStarter]: For program point L44-2(line 44) no Hoare annotation was computed. [2019-10-22 11:23:07,656 INFO L439 ceAbstractionStarter]: At program point L771(lines 724 772) the Hoare annotation is: false [2019-10-22 11:23:07,656 INFO L439 ceAbstractionStarter]: At program point L672(lines 667 674) 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 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-2(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-3(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-5(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-6(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-8(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-9(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-11(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-12(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-14(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-15(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L970-17(lines 970 974) no Hoare annotation was computed. [2019-10-22 11:23:07,657 INFO L443 ceAbstractionStarter]: For program point L279(lines 279 285) no Hoare annotation was computed. [2019-10-22 11:23:07,658 INFO L443 ceAbstractionStarter]: For program point L279-1(lines 279 285) no Hoare annotation was computed. [2019-10-22 11:23:07,658 INFO L443 ceAbstractionStarter]: For program point L279-2(lines 279 285) no Hoare annotation was computed. [2019-10-22 11:23:07,658 INFO L443 ceAbstractionStarter]: For program point L279-3(lines 279 285) no Hoare annotation was computed. [2019-10-22 11:23:07,658 INFO L443 ceAbstractionStarter]: For program point L279-4(lines 279 285) no Hoare annotation was computed. [2019-10-22 11:23:07,658 INFO L443 ceAbstractionStarter]: For program point L279-5(lines 279 285) no Hoare annotation was computed. [2019-10-22 11:23:07,658 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 218) no Hoare annotation was computed. [2019-10-22 11:23:07,658 INFO L439 ceAbstractionStarter]: At program point L82(lines 77 85) 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 11:23:07,658 INFO L439 ceAbstractionStarter]: At program point L150(lines 146 152) 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 11:23:07,658 INFO L439 ceAbstractionStarter]: At program point L976(lines 961 979) the Hoare annotation is: false [2019-10-22 11:23:07,658 INFO L439 ceAbstractionStarter]: At program point L976-1(lines 961 979) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv0 32)) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2))) [2019-10-22 11:23:07,658 INFO L439 ceAbstractionStarter]: At program point L976-2(lines 961 979) the Hoare annotation is: false [2019-10-22 11:23:07,659 INFO L439 ceAbstractionStarter]: At program point L976-3(lines 961 979) the Hoare annotation is: false [2019-10-22 11:23:07,659 INFO L439 ceAbstractionStarter]: At program point L976-4(lines 961 979) the Hoare annotation is: false [2019-10-22 11:23:07,659 INFO L439 ceAbstractionStarter]: At program point L976-5(lines 961 979) the Hoare annotation is: false [2019-10-22 11:23:07,659 INFO L443 ceAbstractionStarter]: For program point L745(lines 745 751) no Hoare annotation was computed. [2019-10-22 11:23:07,659 INFO L439 ceAbstractionStarter]: At program point L745-1(lines 745 751) the Hoare annotation is: (let ((.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (and (= (_ bv0 32) ~pumpRunning~0) .cse1))) (or (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse1 .cse2) (and (and .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 .cse2 .cse3)))) [2019-10-22 11:23:07,659 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:23:07,660 INFO L439 ceAbstractionStarter]: At program point L284(lines 275 288) the Hoare annotation is: false [2019-10-22 11:23:07,660 INFO L439 ceAbstractionStarter]: At program point L284-1(lines 275 288) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and .cse0 (= (_ bv2 32) ~waterLevel~0) .cse1 .cse2) (and (and (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse0 .cse1 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:23:07,660 INFO L439 ceAbstractionStarter]: At program point L284-2(lines 275 288) the Hoare annotation is: false [2019-10-22 11:23:07,660 INFO L439 ceAbstractionStarter]: At program point L284-3(lines 275 288) the Hoare annotation is: false [2019-10-22 11:23:07,661 INFO L446 ceAbstractionStarter]: At program point L185(lines 166 188) the Hoare annotation is: true [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L284-4(lines 275 288) the Hoare annotation is: false [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L284-5(lines 275 288) the Hoare annotation is: false [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L912(lines 905 915) the Hoare annotation is: false [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L912-1(lines 905 915) the Hoare annotation is: (and (= (_ bv0 32) ~pumpRunning~0) (= (_ bv2 32) ~waterLevel~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L912-2(lines 905 915) the Hoare annotation is: false [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L912-3(lines 905 915) the Hoare annotation is: false [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L912-4(lines 905 915) the Hoare annotation is: false [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L912-5(lines 905 915) the Hoare annotation is: false [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L682(lines 792 798) the Hoare annotation is: (let ((.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse1 .cse4 .cse2) (and (and .cse3 .cse1 .cse4 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))))) [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L682-1(lines 792 798) the Hoare annotation is: false [2019-10-22 11:23:07,661 INFO L439 ceAbstractionStarter]: At program point L682-2(lines 792 798) the Hoare annotation is: false [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L850(lines 850 867) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L850-1(lines 850 867) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L850-2(lines 850 867) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L226(lines 226 230) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L887(lines 887 893) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L854(lines 854 862) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L887-2(lines 887 893) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L854-1(lines 854 862) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L854-2(lines 854 862) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L755(lines 755 766) no Hoare annotation was computed. [2019-10-22 11:23:07,662 INFO L443 ceAbstractionStarter]: For program point L887-4(lines 887 893) no Hoare annotation was computed. [2019-10-22 11:23:07,663 INFO L443 ceAbstractionStarter]: For program point L887-6(lines 887 893) no Hoare annotation was computed. [2019-10-22 11:23:07,663 INFO L443 ceAbstractionStarter]: For program point L887-8(lines 887 893) no Hoare annotation was computed. [2019-10-22 11:23:07,663 INFO L443 ceAbstractionStarter]: For program point L887-10(lines 887 893) no Hoare annotation was computed. [2019-10-22 11:23:07,663 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:23:07,663 INFO L439 ceAbstractionStarter]: At program point L921(lines 916 924) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= (_ bv2 32) ~waterLevel~0)) (.cse1 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)))) (or (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 .cse2) (and (and .cse3 .cse1 .cse4 .cse2) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (and .cse3 .cse0 .cse1 .cse4 .cse2))) [2019-10-22 11:23:07,663 INFO L439 ceAbstractionStarter]: At program point L921-1(lines 916 924) the Hoare annotation is: (and (= ~waterLevel~0 |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0) (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:23:07,663 INFO L439 ceAbstractionStarter]: At program point L921-2(lines 916 924) the Hoare annotation is: false [2019-10-22 11:23:07,663 INFO L439 ceAbstractionStarter]: At program point L921-3(lines 916 924) the Hoare annotation is: false [2019-10-22 11:23:07,663 INFO L439 ceAbstractionStarter]: At program point L921-4(lines 916 924) the Hoare annotation is: false [2019-10-22 11:23:07,663 INFO L439 ceAbstractionStarter]: At program point L921-5(lines 916 924) the Hoare annotation is: false [2019-10-22 11:23:07,665 INFO L439 ceAbstractionStarter]: At program point L294(lines 289 297) the Hoare annotation is: (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) [2019-10-22 11:23:07,665 INFO L439 ceAbstractionStarter]: At program point L294-1(lines 289 297) the Hoare annotation is: false [2019-10-22 11:23:07,665 INFO L439 ceAbstractionStarter]: At program point L294-2(lines 289 297) the Hoare annotation is: false [2019-10-22 11:23:07,665 INFO L443 ceAbstractionStarter]: For program point L989(lines 989 993) no Hoare annotation was computed. [2019-10-22 11:23:07,665 INFO L443 ceAbstractionStarter]: For program point L989-2(lines 989 993) no Hoare annotation was computed. [2019-10-22 11:23:07,665 INFO L443 ceAbstractionStarter]: For program point L989-3(lines 989 993) no Hoare annotation was computed. [2019-10-22 11:23:07,665 INFO L443 ceAbstractionStarter]: For program point L824(lines 824 841) no Hoare annotation was computed. [2019-10-22 11:23:07,665 INFO L443 ceAbstractionStarter]: For program point L989-5(lines 989 993) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L824-1(lines 824 841) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L989-6(lines 989 993) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L824-2(lines 824 841) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L824-3(lines 824 841) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L989-8(lines 989 993) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L824-4(lines 824 841) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L824-5(lines 824 841) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L439 ceAbstractionStarter]: At program point L792(lines 788 810) the Hoare annotation is: (let ((.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (and (= (_ bv0 32) ~pumpRunning~0) .cse3))) (or (and (and .cse0 .cse1) .cse2) (and (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse3 .cse2 .cse0) (and (= (_ bv2 32) ~waterLevel~0) .cse0 .cse1)))) [2019-10-22 11:23:07,666 INFO L439 ceAbstractionStarter]: At program point L792-1(lines 788 810) the Hoare annotation is: false [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L726(lines 725 770) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L439 ceAbstractionStarter]: At program point L792-2(lines 788 810) the Hoare annotation is: false [2019-10-22 11:23:07,666 INFO L443 ceAbstractionStarter]: For program point L693(lines 693 710) no Hoare annotation was computed. [2019-10-22 11:23:07,666 INFO L439 ceAbstractionStarter]: At program point L693-1(lines 1 998) the Hoare annotation is: (let ((.cse5 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse0 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4)) (.cse1 (= ~waterLevel~0 ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4)) (.cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (and (= (_ bv0 32) ~pumpRunning~0) .cse5))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse5 .cse1 .cse2 .cse4) (and (and .cse2 .cse3) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)))))) [2019-10-22 11:23:07,667 INFO L443 ceAbstractionStarter]: For program point L693-2(lines 693 710) no Hoare annotation was computed. [2019-10-22 11:23:07,667 INFO L439 ceAbstractionStarter]: At program point L693-3(lines 1 998) the Hoare annotation is: false [2019-10-22 11:23:07,667 INFO L443 ceAbstractionStarter]: For program point L693-4(lines 693 710) no Hoare annotation was computed. [2019-10-22 11:23:07,667 INFO L439 ceAbstractionStarter]: At program point L693-5(lines 1 998) the Hoare annotation is: false [2019-10-22 11:23:07,667 INFO L439 ceAbstractionStarter]: At program point L99-2(lines 99 113) the Hoare annotation is: false [2019-10-22 11:23:07,667 INFO L443 ceAbstractionStarter]: For program point L727(lines 727 731) no Hoare annotation was computed. [2019-10-22 11:23:07,667 INFO L443 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2019-10-22 11:23:07,667 INFO L443 ceAbstractionStarter]: For program point L761(lines 761 765) no Hoare annotation was computed. [2019-10-22 11:23:07,667 INFO L443 ceAbstractionStarter]: For program point L761-2(lines 755 766) no Hoare annotation was computed. [2019-10-22 11:23:07,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:07 BoogieIcfgContainer [2019-10-22 11:23:07,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:07,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:07,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:07,690 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:07,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:50" (3/4) ... [2019-10-22 11:23:07,693 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:23:07,709 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:23:07,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-10-22 11:23:07,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 11:23:07,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:23:07,712 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:23:07,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:23:07,739 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2bv32 == tmp && waterLevel == tmp) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 2bv32 == \result) || (((((1bv32 == pumpRunning && 2bv32 == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && waterLevel == tmp) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:23:07,740 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == pumpRunning && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) [2019-10-22 11:23:07,740 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:23:07,740 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2019-10-22 11:23:07,741 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) || (waterLevel == \result && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) [2019-10-22 11:23:07,741 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:23:07,742 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) [2019-10-22 11:23:07,742 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == \result && 0bv32 == pumpRunning) && waterLevel == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 [2019-10-22 11:23:07,743 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32 [2019-10-22 11:23:07,743 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp___0 == 0bv32 && 0bv32 == pumpRunning) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) [2019-10-22 11:23:07,797 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6c5aaf32-9713-4e11-8a6c-f47f16a7a01a/bin/utaipan/witness.graphml [2019-10-22 11:23:07,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:07,798 INFO L168 Benchmark]: Toolchain (without parser) took 19243.14 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 461.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 305.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,799 INFO L168 Benchmark]: CDTParser took 0.16 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 11:23:07,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -187.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,800 INFO L168 Benchmark]: Boogie Preprocessor took 41.65 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 11:23:07,800 INFO L168 Benchmark]: RCFGBuilder took 908.78 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: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,800 INFO L168 Benchmark]: TraceAbstraction took 17543.08 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 304.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -64.3 MB). Peak memory consumption was 435.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,800 INFO L168 Benchmark]: Witness Printer took 108.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,802 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 578.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -187.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.65 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 908.78 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: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17543.08 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 304.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -64.3 MB). Peak memory consumption was 435.6 MB. Max. memory is 11.5 GB. * Witness Printer took 108.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: 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: 916]: Loop Invariant Derived loop invariant: (((((1bv32 == pumpRunning && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) - InvariantResult [Line: 961]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 724]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 916]: Loop Invariant Derived loop invariant: (((((waterLevel == \result && 0bv32 == pumpRunning) && waterLevel == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 961]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 916]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 961]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 916]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 961]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 916]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 735]: Loop Invariant Derived loop invariant: ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 961]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 961]: Loop Invariant Derived loop invariant: (((((tmp___0 == 0bv32 && 0bv32 == pumpRunning) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: (((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) || (waterLevel == \result && ((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && 2bv32 == \result) - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: ((((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && tmp == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(tmp___0, 4294967295bv32) == 0bv32 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 289]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 289]: Loop Invariant Derived loop invariant: (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && \result == 0bv32) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((2bv32 == tmp && waterLevel == tmp) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 2bv32 == \result) || (((((1bv32 == pumpRunning && 2bv32 == tmp) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && waterLevel == tmp) && splverifierCounter == 0bv32) && 2bv32 == \result)) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32 - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 799]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 799]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 289]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: ((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 788]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || (((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: (((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((1bv32 == \result && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 788]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 788]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: ((((((1bv32 == pumpRunning && 1bv32 == switchedOnBeforeTS) && 1bv32 == \result) && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((((0bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32)) || ((((0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == \result) && splverifierCounter == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) - InvariantResult [Line: 799]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) - InvariantResult [Line: 916]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 745]: Loop Invariant Derived loop invariant: ((((1bv32 == pumpRunning && 2bv32 == waterLevel) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && splverifierCounter == 0bv32) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32)) || ((2bv32 == waterLevel && splverifierCounter == 0bv32) && 0bv32 == pumpRunning && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 3 error locations. Result: SAFE, OverallTime: 17.4s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, HoareTripleCheckerStatistics: 2490 SDtfs, 4419 SDslu, 4916 SDs, 0 SdLazy, 833 SolverSat, 202 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2789 GetRequests, 2667 SyntacticMatches, 3 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=466occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 2237 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 61 PreInvPairs, 163 NumberOfFragments, 752 HoareAnnotationTreeSize, 61 FomulaSimplifications, 3871169 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 61 FomulaSimplificationsInter, 373640 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1380 NumberOfCodeBlocks, 1380 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2720 ConstructedInterpolants, 0 QuantifiedInterpolants, 503813 SizeOfPredicates, 73 NumberOfNonLiveVariables, 4997 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 40 InterpolantComputations, 26 PerfectInterpolantSequences, 1938/2138 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...