./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.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_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 cc5b595de9a81353e40cb89360f6656c22ce2f6a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 cc5b595de9a81353e40cb89360f6656c22ce2f6a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:43,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:43,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:43,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:43,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:43,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:43,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:43,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:43,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:43,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:43,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:43,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:43,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:43,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:43,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:43,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:43,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:43,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:43,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:43,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:43,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:43,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:43,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:43,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:43,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:43,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:43,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:43,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:43,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:43,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:43,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:43,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:43,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:43,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:43,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:43,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:43,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:43,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:43,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:43,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:43,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:43,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:43,883 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:43,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:43,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:43,884 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:43,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:43,884 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:43,885 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:43,885 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:43,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:43,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:43,885 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:43,886 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:43,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:43,887 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:43,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:43,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:43,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:43,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:43,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:43,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:43,888 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:43,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:43,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:43,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:43,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:43,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:43,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:43,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:43,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:43,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:43,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:43,891 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:43,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:43,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:43,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:43,892 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_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 -> cc5b595de9a81353e40cb89360f6656c22ce2f6a [2019-10-22 11:21:43,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:43,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:43,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:43,942 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:43,943 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:43,943 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2019-10-22 11:21:43,990 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data/2bd172a15/c8b1b88e77fc44948b1eddeee3add848/FLAG1f3c4335d [2019-10-22 11:21:44,427 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:44,430 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2019-10-22 11:21:44,445 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data/2bd172a15/c8b1b88e77fc44948b1eddeee3add848/FLAG1f3c4335d [2019-10-22 11:21:44,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data/2bd172a15/c8b1b88e77fc44948b1eddeee3add848 [2019-10-22 11:21:44,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:44,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:44,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:44,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:44,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:44,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de3efe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:44, skipping insertion in model container [2019-10-22 11:21:44,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:44" (1/1) ... [2019-10-22 11:21:44,482 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:44,540 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:44,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:44,968 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:45,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:45,104 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:45,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45 WrapperNode [2019-10-22 11:21:45,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:45,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:45,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:45,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:45,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:45,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:45,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:45,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:45,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... [2019-10-22 11:21:45,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:45,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:45,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:45,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:45,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:21:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:45,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:47,064 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:47,065 INFO L284 CfgBuilder]: Removed 900 assume(true) statements. [2019-10-22 11:21:47,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:47 BoogieIcfgContainer [2019-10-22 11:21:47,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:47,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:47,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:47,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:47,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:44" (1/3) ... [2019-10-22 11:21:47,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4355b73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:47, skipping insertion in model container [2019-10-22 11:21:47,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:45" (2/3) ... [2019-10-22 11:21:47,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4355b73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:47, skipping insertion in model container [2019-10-22 11:21:47,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:47" (3/3) ... [2019-10-22 11:21:47,073 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_productSimulator.cil.c [2019-10-22 11:21:47,081 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:47,089 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:47,098 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:47,122 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:47,122 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:47,122 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:47,122 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:47,123 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:47,123 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:47,123 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:47,123 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:47,145 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states. [2019-10-22 11:21:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 11:21:47,151 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,152 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] [2019-10-22 11:21:47,154 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:47,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1535705576, now seen corresponding path program 1 times [2019-10-22 11:21:47,165 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:47,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426266214] [2019-10-22 11:21:47,166 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,166 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:47,369 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426266214] [2019-10-22 11:21:47,369 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,370 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:47,370 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870173519] [2019-10-22 11:21:47,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:47,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:47,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:47,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:47,384 INFO L87 Difference]: Start difference. First operand 470 states. Second operand 2 states. [2019-10-22 11:21:47,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:47,444 INFO L93 Difference]: Finished difference Result 927 states and 1454 transitions. [2019-10-22 11:21:47,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:47,446 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-10-22 11:21:47,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:47,459 INFO L225 Difference]: With dead ends: 927 [2019-10-22 11:21:47,459 INFO L226 Difference]: Without dead ends: 466 [2019-10-22 11:21:47,470 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2019-10-22 11:21:47,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2019-10-22 11:21:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-10-22 11:21:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 722 transitions. [2019-10-22 11:21:47,534 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 722 transitions. Word has length 23 [2019-10-22 11:21:47,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:47,534 INFO L462 AbstractCegarLoop]: Abstraction has 466 states and 722 transitions. [2019-10-22 11:21:47,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:47,535 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 722 transitions. [2019-10-22 11:21:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:21:47,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,536 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:47,536 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:47,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1882100476, now seen corresponding path program 1 times [2019-10-22 11:21:47,537 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:47,537 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323295262] [2019-10-22 11:21:47,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:47,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323295262] [2019-10-22 11:21:47,621 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:47,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854299385] [2019-10-22 11:21:47,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:47,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:47,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:47,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:47,624 INFO L87 Difference]: Start difference. First operand 466 states and 722 transitions. Second operand 3 states. [2019-10-22 11:21:47,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:47,644 INFO L93 Difference]: Finished difference Result 466 states and 722 transitions. [2019-10-22 11:21:47,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:47,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:21:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:47,645 INFO L225 Difference]: With dead ends: 466 [2019-10-22 11:21:47,646 INFO L226 Difference]: Without dead ends: 172 [2019-10-22 11:21:47,647 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:47,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-10-22 11:21:47,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2019-10-22 11:21:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-22 11:21:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2019-10-22 11:21:47,657 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 24 [2019-10-22 11:21:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:47,657 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2019-10-22 11:21:47,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:47,657 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2019-10-22 11:21:47,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:21:47,658 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:47,658 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:47,659 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:47,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:47,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1978143563, now seen corresponding path program 1 times [2019-10-22 11:21:47,659 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:47,660 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553641200] [2019-10-22 11:21:47,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:47,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:47,813 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 11:21:47,813 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553641200] [2019-10-22 11:21:47,813 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:47,813 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:21:47,814 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621826568] [2019-10-22 11:21:47,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:47,814 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:47,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:47,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:47,815 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand 7 states. [2019-10-22 11:21:48,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:48,037 INFO L93 Difference]: Finished difference Result 674 states and 1051 transitions. [2019-10-22 11:21:48,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:48,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2019-10-22 11:21:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:48,040 INFO L225 Difference]: With dead ends: 674 [2019-10-22 11:21:48,040 INFO L226 Difference]: Without dead ends: 515 [2019-10-22 11:21:48,041 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:21:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-10-22 11:21:48,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 193. [2019-10-22 11:21:48,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-10-22 11:21:48,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 296 transitions. [2019-10-22 11:21:48,059 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 296 transitions. Word has length 30 [2019-10-22 11:21:48,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:48,059 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 296 transitions. [2019-10-22 11:21:48,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 296 transitions. [2019-10-22 11:21:48,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:48,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:48,060 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:48,060 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:48,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:48,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1554604317, now seen corresponding path program 1 times [2019-10-22 11:21:48,061 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:48,061 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385001503] [2019-10-22 11:21:48,061 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,061 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:48,139 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385001503] [2019-10-22 11:21:48,139 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:48,139 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:48,140 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172383066] [2019-10-22 11:21:48,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:48,140 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:48,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:48,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:48,141 INFO L87 Difference]: Start difference. First operand 193 states and 296 transitions. Second operand 3 states. [2019-10-22 11:21:48,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:48,226 INFO L93 Difference]: Finished difference Result 384 states and 597 transitions. [2019-10-22 11:21:48,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:48,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 11:21:48,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:48,228 INFO L225 Difference]: With dead ends: 384 [2019-10-22 11:21:48,228 INFO L226 Difference]: Without dead ends: 204 [2019-10-22 11:21:48,229 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:48,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-10-22 11:21:48,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2019-10-22 11:21:48,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-22 11:21:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 302 transitions. [2019-10-22 11:21:48,240 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 302 transitions. Word has length 33 [2019-10-22 11:21:48,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:48,240 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 302 transitions. [2019-10-22 11:21:48,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 302 transitions. [2019-10-22 11:21:48,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:48,241 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:48,241 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:48,242 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:48,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:48,242 INFO L82 PathProgramCache]: Analyzing trace with hash 965063802, now seen corresponding path program 1 times [2019-10-22 11:21:48,242 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:48,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777691691] [2019-10-22 11:21:48,242 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:48,335 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777691691] [2019-10-22 11:21:48,335 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:48,335 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 11:21:48,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216658509] [2019-10-22 11:21:48,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:21:48,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:48,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:21:48,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:48,338 INFO L87 Difference]: Start difference. First operand 202 states and 302 transitions. Second operand 9 states. [2019-10-22 11:21:48,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:48,886 INFO L93 Difference]: Finished difference Result 1414 states and 2168 transitions. [2019-10-22 11:21:48,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 11:21:48,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2019-10-22 11:21:48,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:48,892 INFO L225 Difference]: With dead ends: 1414 [2019-10-22 11:21:48,893 INFO L226 Difference]: Without dead ends: 1225 [2019-10-22 11:21:48,894 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2019-10-22 11:21:48,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2019-10-22 11:21:48,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 491. [2019-10-22 11:21:48,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2019-10-22 11:21:48,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 730 transitions. [2019-10-22 11:21:48,938 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 730 transitions. Word has length 33 [2019-10-22 11:21:48,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:48,939 INFO L462 AbstractCegarLoop]: Abstraction has 491 states and 730 transitions. [2019-10-22 11:21:48,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:21:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 730 transitions. [2019-10-22 11:21:48,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 11:21:48,945 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:48,945 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:48,945 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:48,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:48,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1610564718, now seen corresponding path program 1 times [2019-10-22 11:21:48,946 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:48,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557542731] [2019-10-22 11:21:48,946 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,946 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:48,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:49,021 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 11:21:49,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557542731] [2019-10-22 11:21:49,022 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:49,022 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:49,022 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287989333] [2019-10-22 11:21:49,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:49,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:49,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:49,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:49,029 INFO L87 Difference]: Start difference. First operand 491 states and 730 transitions. Second operand 5 states. [2019-10-22 11:21:49,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:49,305 INFO L93 Difference]: Finished difference Result 1309 states and 1977 transitions. [2019-10-22 11:21:49,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:21:49,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2019-10-22 11:21:49,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:49,313 INFO L225 Difference]: With dead ends: 1309 [2019-10-22 11:21:49,314 INFO L226 Difference]: Without dead ends: 1307 [2019-10-22 11:21:49,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2019-10-22 11:21:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 491. [2019-10-22 11:21:49,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2019-10-22 11:21:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 728 transitions. [2019-10-22 11:21:49,353 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 728 transitions. Word has length 49 [2019-10-22 11:21:49,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:49,353 INFO L462 AbstractCegarLoop]: Abstraction has 491 states and 728 transitions. [2019-10-22 11:21:49,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:49,353 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 728 transitions. [2019-10-22 11:21:49,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-22 11:21:49,355 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:49,355 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:49,364 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,364 INFO L82 PathProgramCache]: Analyzing trace with hash 421650894, now seen corresponding path program 1 times [2019-10-22 11:21:49,364 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:49,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632945186] [2019-10-22 11:21:49,365 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,365 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:49,445 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:49,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632945186] [2019-10-22 11:21:49,445 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:49,446 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:49,446 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627177493] [2019-10-22 11:21:49,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:49,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:49,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:49,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:49,447 INFO L87 Difference]: Start difference. First operand 491 states and 728 transitions. Second operand 5 states. [2019-10-22 11:21:49,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:49,641 INFO L93 Difference]: Finished difference Result 1333 states and 1967 transitions. [2019-10-22 11:21:49,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:49,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2019-10-22 11:21:49,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:49,645 INFO L225 Difference]: With dead ends: 1333 [2019-10-22 11:21:49,645 INFO L226 Difference]: Without dead ends: 855 [2019-10-22 11:21:49,646 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:49,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2019-10-22 11:21:49,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 551. [2019-10-22 11:21:49,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2019-10-22 11:21:49,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 788 transitions. [2019-10-22 11:21:49,680 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 788 transitions. Word has length 59 [2019-10-22 11:21:49,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:49,680 INFO L462 AbstractCegarLoop]: Abstraction has 551 states and 788 transitions. [2019-10-22 11:21:49,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:49,680 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 788 transitions. [2019-10-22 11:21:49,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-22 11:21:49,682 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:49,682 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:49,682 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1807854288, now seen corresponding path program 1 times [2019-10-22 11:21:49,683 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:49,683 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373154914] [2019-10-22 11:21:49,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:49,763 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373154914] [2019-10-22 11:21:49,763 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:49,763 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:21:49,763 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551518866] [2019-10-22 11:21:49,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:49,764 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:49,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:49,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:49,764 INFO L87 Difference]: Start difference. First operand 551 states and 788 transitions. Second operand 7 states. [2019-10-22 11:21:49,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:49,989 INFO L93 Difference]: Finished difference Result 1290 states and 1845 transitions. [2019-10-22 11:21:49,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:49,990 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2019-10-22 11:21:49,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:49,992 INFO L225 Difference]: With dead ends: 1290 [2019-10-22 11:21:49,992 INFO L226 Difference]: Without dead ends: 752 [2019-10-22 11:21:49,993 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:21:49,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2019-10-22 11:21:50,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 464. [2019-10-22 11:21:50,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-10-22 11:21:50,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 644 transitions. [2019-10-22 11:21:50,032 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 644 transitions. Word has length 59 [2019-10-22 11:21:50,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,032 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 644 transitions. [2019-10-22 11:21:50,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 644 transitions. [2019-10-22 11:21:50,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-22 11:21:50,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,034 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:50,034 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,034 INFO L82 PathProgramCache]: Analyzing trace with hash 124429653, now seen corresponding path program 1 times [2019-10-22 11:21:50,034 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:50,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442574689] [2019-10-22 11:21:50,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,079 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:50,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442574689] [2019-10-22 11:21:50,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:50,080 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:50,080 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724123704] [2019-10-22 11:21:50,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:50,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:50,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:50,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:50,081 INFO L87 Difference]: Start difference. First operand 464 states and 644 transitions. Second operand 3 states. [2019-10-22 11:21:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:50,167 INFO L93 Difference]: Finished difference Result 1061 states and 1491 transitions. [2019-10-22 11:21:50,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:50,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-22 11:21:50,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:50,170 INFO L225 Difference]: With dead ends: 1061 [2019-10-22 11:21:50,170 INFO L226 Difference]: Without dead ends: 610 [2019-10-22 11:21:50,171 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:50,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2019-10-22 11:21:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2019-10-22 11:21:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-10-22 11:21:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 838 transitions. [2019-10-22 11:21:50,209 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 838 transitions. Word has length 60 [2019-10-22 11:21:50,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,209 INFO L462 AbstractCegarLoop]: Abstraction has 610 states and 838 transitions. [2019-10-22 11:21:50,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:50,209 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 838 transitions. [2019-10-22 11:21:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-22 11:21:50,211 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,213 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:50,214 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,214 INFO L82 PathProgramCache]: Analyzing trace with hash 417791151, now seen corresponding path program 1 times [2019-10-22 11:21:50,214 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:50,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790309770] [2019-10-22 11:21:50,215 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,215 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,294 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:50,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790309770] [2019-10-22 11:21:50,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083330822] [2019-10-22 11:21:50,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:50,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:50,445 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:50,469 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1366109387] [2019-10-22 11:21:50,475 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 62 [2019-10-22 11:21:50,523 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:21:50,523 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:21:50,984 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:50,984 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:21:50,989 INFO L168 Benchmark]: Toolchain (without parser) took 6525.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 935.6 MB in the beginning and 859.9 MB in the end (delta: 75.7 MB). Peak memory consumption was 268.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,990 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:50,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.71 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,996 INFO L168 Benchmark]: Boogie Preprocessor took 118.84 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: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,997 INFO L168 Benchmark]: RCFGBuilder took 1726.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.7 MB in the end (delta: 158.9 MB). Peak memory consumption was 158.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,997 INFO L168 Benchmark]: TraceAbstraction took 3920.67 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 927.7 MB in the beginning and 859.9 MB in the end (delta: 67.8 MB). Peak memory consumption was 129.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:51,009 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 640.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 114.71 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 118.84 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: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1726.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.7 MB in the end (delta: 158.9 MB). Peak memory consumption was 158.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3920.67 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 927.7 MB in the beginning and 859.9 MB in the end (delta: 67.8 MB). Peak memory consumption was 129.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:53,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:53,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:53,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:53,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:53,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:53,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:53,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:53,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:53,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:53,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:53,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:53,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:53,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:53,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:53,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:53,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:53,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:53,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:53,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:53,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:53,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:53,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:53,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:53,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:53,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:53,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:53,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:53,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:53,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:53,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:53,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:53,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:53,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:53,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:53,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:53,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:53,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:53,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:53,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:53,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:53,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:53,078 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:53,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:53,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:53,079 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:53,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:53,080 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:53,080 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:53,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:53,080 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:53,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:53,081 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:53,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:53,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:53,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:53,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:53,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:53,083 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:53,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:53,083 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:53,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:53,083 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:53,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:53,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:53,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:53,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:53,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:53,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:53,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:53,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:53,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:53,085 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:53,085 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:53,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:53,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:53,085 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_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 -> cc5b595de9a81353e40cb89360f6656c22ce2f6a [2019-10-22 11:21:53,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:53,129 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:53,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:53,133 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:53,133 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:53,134 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2019-10-22 11:21:53,190 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data/117789bbb/2adaab55e3f64747a4067f186387a5cd/FLAG4a9c0406b [2019-10-22 11:21:53,603 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:53,603 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2019-10-22 11:21:53,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data/117789bbb/2adaab55e3f64747a4067f186387a5cd/FLAG4a9c0406b [2019-10-22 11:21:53,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/data/117789bbb/2adaab55e3f64747a4067f186387a5cd [2019-10-22 11:21:53,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:53,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:53,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:53,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:53,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:53,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:53" (1/1) ... [2019-10-22 11:21:53,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9daf87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:53, skipping insertion in model container [2019-10-22 11:21:53,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:53" (1/1) ... [2019-10-22 11:21:53,941 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:53,979 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:54,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:54,277 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:54,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:54,468 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:54,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54 WrapperNode [2019-10-22 11:21:54,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:54,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:54,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:54,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:54,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... [2019-10-22 11:21:54,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... [2019-10-22 11:21:54,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:54,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:54,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:54,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:54,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... [2019-10-22 11:21:54,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... [2019-10-22 11:21:54,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... [2019-10-22 11:21:54,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... [2019-10-22 11:21:54,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... [2019-10-22 11:21:54,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... [2019-10-22 11:21:54,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... [2019-10-22 11:21:54,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:54,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:54,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:54,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:54,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-10-22 11:21:54,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:54,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:56,564 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:56,565 INFO L284 CfgBuilder]: Removed 900 assume(true) statements. [2019-10-22 11:21:56,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:56 BoogieIcfgContainer [2019-10-22 11:21:56,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:56,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:56,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:56,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:56,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:53" (1/3) ... [2019-10-22 11:21:56,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6024f8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:56, skipping insertion in model container [2019-10-22 11:21:56,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:54" (2/3) ... [2019-10-22 11:21:56,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6024f8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:56, skipping insertion in model container [2019-10-22 11:21:56,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:56" (3/3) ... [2019-10-22 11:21:56,574 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_productSimulator.cil.c [2019-10-22 11:21:56,583 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:56,594 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:56,605 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:56,629 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:56,630 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:56,630 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:56,630 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:56,630 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:56,630 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:56,631 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:56,631 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:56,652 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states. [2019-10-22 11:21:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 11:21:56,658 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:56,659 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] [2019-10-22 11:21:56,661 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:56,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1535705576, now seen corresponding path program 1 times [2019-10-22 11:21:56,676 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:56,677 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [362536525] [2019-10-22 11:21:56,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:56,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:21:56,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:56,868 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:56,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:56,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [362536525] [2019-10-22 11:21:56,875 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:56,875 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:21:56,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407545797] [2019-10-22 11:21:56,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:56,880 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:56,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:56,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:56,894 INFO L87 Difference]: Start difference. First operand 470 states. Second operand 2 states. [2019-10-22 11:21:56,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:56,954 INFO L93 Difference]: Finished difference Result 927 states and 1454 transitions. [2019-10-22 11:21:56,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:56,964 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-10-22 11:21:56,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:56,982 INFO L225 Difference]: With dead ends: 927 [2019-10-22 11:21:56,983 INFO L226 Difference]: Without dead ends: 466 [2019-10-22 11:21:56,987 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:57,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2019-10-22 11:21:57,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2019-10-22 11:21:57,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-10-22 11:21:57,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 722 transitions. [2019-10-22 11:21:57,062 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 722 transitions. Word has length 23 [2019-10-22 11:21:57,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:57,063 INFO L462 AbstractCegarLoop]: Abstraction has 466 states and 722 transitions. [2019-10-22 11:21:57,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:57,063 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 722 transitions. [2019-10-22 11:21:57,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:21:57,064 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:57,064 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:57,265 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:57,265 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:57,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:57,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1882100476, now seen corresponding path program 1 times [2019-10-22 11:21:57,267 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:57,268 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1027896837] [2019-10-22 11:21:57,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:57,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:21:57,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:57,454 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:57,462 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1027896837] [2019-10-22 11:21:57,462 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:57,463 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:21:57,463 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451397322] [2019-10-22 11:21:57,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:57,464 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:57,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:57,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:57,465 INFO L87 Difference]: Start difference. First operand 466 states and 722 transitions. Second operand 4 states. [2019-10-22 11:21:57,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:57,553 INFO L93 Difference]: Finished difference Result 1423 states and 2213 transitions. [2019-10-22 11:21:57,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:21:57,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-10-22 11:21:57,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:57,558 INFO L225 Difference]: With dead ends: 1423 [2019-10-22 11:21:57,559 INFO L226 Difference]: Without dead ends: 970 [2019-10-22 11:21:57,561 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:57,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2019-10-22 11:21:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 509. [2019-10-22 11:21:57,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 509 states. [2019-10-22 11:21:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 786 transitions. [2019-10-22 11:21:57,604 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 786 transitions. Word has length 24 [2019-10-22 11:21:57,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:57,605 INFO L462 AbstractCegarLoop]: Abstraction has 509 states and 786 transitions. [2019-10-22 11:21:57,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 786 transitions. [2019-10-22 11:21:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:21:57,606 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:57,606 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] [2019-10-22 11:21:57,806 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:57,807 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:57,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:57,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1492108859, now seen corresponding path program 1 times [2019-10-22 11:21:57,808 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:57,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1395311387] [2019-10-22 11:21:57,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:57,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:21:57,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:58,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:58,016 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:58,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:58,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1395311387] [2019-10-22 11:21:58,046 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:58,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-10-22 11:21:58,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398539298] [2019-10-22 11:21:58,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:58,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:58,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:58,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:58,047 INFO L87 Difference]: Start difference. First operand 509 states and 786 transitions. Second operand 8 states. [2019-10-22 11:21:59,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:59,533 INFO L93 Difference]: Finished difference Result 4545 states and 7083 transitions. [2019-10-22 11:21:59,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 11:21:59,534 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-10-22 11:21:59,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:59,550 INFO L225 Difference]: With dead ends: 4545 [2019-10-22 11:21:59,550 INFO L226 Difference]: Without dead ends: 4049 [2019-10-22 11:21:59,553 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:21:59,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4049 states. [2019-10-22 11:21:59,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4049 to 1463. [2019-10-22 11:21:59,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1463 states. [2019-10-22 11:21:59,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2239 transitions. [2019-10-22 11:21:59,672 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2239 transitions. Word has length 27 [2019-10-22 11:21:59,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:59,672 INFO L462 AbstractCegarLoop]: Abstraction has 1463 states and 2239 transitions. [2019-10-22 11:21:59,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2239 transitions. [2019-10-22 11:21:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:59,676 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:59,676 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:59,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:59,877 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:59,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:59,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1269018469, now seen corresponding path program 1 times [2019-10-22 11:21:59,877 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:59,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [951248843] [2019-10-22 11:21:59,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 11:22:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:00,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:00,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:00,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:00,022 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:00,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [951248843] [2019-10-22 11:22:00,026 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:00,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:22:00,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204556770] [2019-10-22 11:22:00,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:00,027 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:00,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:00,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:00,028 INFO L87 Difference]: Start difference. First operand 1463 states and 2239 transitions. Second operand 3 states. [2019-10-22 11:22:00,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:00,391 INFO L93 Difference]: Finished difference Result 2711 states and 4162 transitions. [2019-10-22 11:22:00,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:00,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-22 11:22:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:00,396 INFO L225 Difference]: With dead ends: 2711 [2019-10-22 11:22:00,396 INFO L226 Difference]: Without dead ends: 1261 [2019-10-22 11:22:00,397 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 11:22:00,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2019-10-22 11:22:00,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1255. [2019-10-22 11:22:00,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-10-22 11:22:00,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1843 transitions. [2019-10-22 11:22:00,472 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1843 transitions. Word has length 28 [2019-10-22 11:22:00,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:00,472 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1843 transitions. [2019-10-22 11:22:00,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1843 transitions. [2019-10-22 11:22:00,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-22 11:22:00,475 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:00,475 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:00,680 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:00,680 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:00,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:00,681 INFO L82 PathProgramCache]: Analyzing trace with hash -680540135, now seen corresponding path program 1 times [2019-10-22 11:22:00,681 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:00,681 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1760121366] [2019-10-22 11:22:00,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 11:22:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:00,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:00,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:00,861 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 11:22:00,861 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:00,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:00,867 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1760121366] [2019-10-22 11:22:00,867 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:00,867 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:22:00,867 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006376100] [2019-10-22 11:22:00,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:00,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:00,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:00,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:00,868 INFO L87 Difference]: Start difference. First operand 1255 states and 1843 transitions. Second operand 3 states. [2019-10-22 11:22:01,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:01,176 INFO L93 Difference]: Finished difference Result 2813 states and 4120 transitions. [2019-10-22 11:22:01,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:01,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-10-22 11:22:01,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:01,182 INFO L225 Difference]: With dead ends: 2813 [2019-10-22 11:22:01,183 INFO L226 Difference]: Without dead ends: 1571 [2019-10-22 11:22:01,184 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 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 11:22:01,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2019-10-22 11:22:01,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1565. [2019-10-22 11:22:01,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1565 states. [2019-10-22 11:22:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2221 transitions. [2019-10-22 11:22:01,276 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2221 transitions. Word has length 48 [2019-10-22 11:22:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:01,276 INFO L462 AbstractCegarLoop]: Abstraction has 1565 states and 2221 transitions. [2019-10-22 11:22:01,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2221 transitions. [2019-10-22 11:22:01,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 11:22:01,278 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:01,278 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:01,481 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:01,482 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:01,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:01,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1610564718, now seen corresponding path program 1 times [2019-10-22 11:22:01,482 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:01,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1759126298] [2019-10-22 11:22:01,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 11:22:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:01,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:01,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:22:01,668 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:01,671 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 11:22:01,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1759126298] [2019-10-22 11:22:01,674 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:01,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:01,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249899573] [2019-10-22 11:22:01,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:01,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:01,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:01,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:01,675 INFO L87 Difference]: Start difference. First operand 1565 states and 2221 transitions. Second operand 5 states. [2019-10-22 11:22:02,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:02,463 INFO L93 Difference]: Finished difference Result 3921 states and 5633 transitions. [2019-10-22 11:22:02,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:22:02,464 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2019-10-22 11:22:02,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:02,479 INFO L225 Difference]: With dead ends: 3921 [2019-10-22 11:22:02,479 INFO L226 Difference]: Without dead ends: 3915 [2019-10-22 11:22:02,481 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 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 11:22:02,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3915 states. [2019-10-22 11:22:02,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 1565. [2019-10-22 11:22:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1565 states. [2019-10-22 11:22:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2209 transitions. [2019-10-22 11:22:02,670 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2209 transitions. Word has length 49 [2019-10-22 11:22:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:02,671 INFO L462 AbstractCegarLoop]: Abstraction has 1565 states and 2209 transitions. [2019-10-22 11:22:02,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:02,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2209 transitions. [2019-10-22 11:22:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 11:22:02,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:02,675 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:02,875 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:02,876 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:02,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:02,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1233532865, now seen corresponding path program 1 times [2019-10-22 11:22:02,876 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:02,876 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2141656953] [2019-10-22 11:22:02,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 11:22:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:03,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:03,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:03,047 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 11:22:03,047 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:03,051 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 11:22:03,051 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2141656953] [2019-10-22 11:22:03,051 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:03,052 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-10-22 11:22:03,052 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103041346] [2019-10-22 11:22:03,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:03,052 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:03,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:03,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:03,053 INFO L87 Difference]: Start difference. First operand 1565 states and 2209 transitions. Second operand 5 states. [2019-10-22 11:22:03,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:03,555 INFO L93 Difference]: Finished difference Result 3643 states and 5047 transitions. [2019-10-22 11:22:03,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:03,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2019-10-22 11:22:03,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:03,562 INFO L225 Difference]: With dead ends: 3643 [2019-10-22 11:22:03,562 INFO L226 Difference]: Without dead ends: 2401 [2019-10-22 11:22:03,564 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:22:03,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2019-10-22 11:22:03,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1745. [2019-10-22 11:22:03,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1745 states. [2019-10-22 11:22:03,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2389 transitions. [2019-10-22 11:22:03,661 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2389 transitions. Word has length 49 [2019-10-22 11:22:03,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:03,661 INFO L462 AbstractCegarLoop]: Abstraction has 1745 states and 2389 transitions. [2019-10-22 11:22:03,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:03,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2389 transitions. [2019-10-22 11:22:03,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 11:22:03,663 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:03,663 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:03,863 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:03,864 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:03,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:03,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1374081475, now seen corresponding path program 1 times [2019-10-22 11:22:03,864 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:03,864 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [399429873] [2019-10-22 11:22:03,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 11:22:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:04,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:04,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:04,012 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 11:22:04,012 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:04,025 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 11:22:04,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [399429873] [2019-10-22 11:22:04,026 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:04,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:22:04,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310786313] [2019-10-22 11:22:04,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:04,027 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:04,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:04,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:04,027 INFO L87 Difference]: Start difference. First operand 1745 states and 2389 transitions. Second operand 6 states. [2019-10-22 11:22:04,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:04,519 INFO L93 Difference]: Finished difference Result 3451 states and 4638 transitions. [2019-10-22 11:22:04,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:04,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2019-10-22 11:22:04,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:04,529 INFO L225 Difference]: With dead ends: 3451 [2019-10-22 11:22:04,529 INFO L226 Difference]: Without dead ends: 1861 [2019-10-22 11:22:04,532 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 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 11:22:04,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2019-10-22 11:22:04,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1346. [2019-10-22 11:22:04,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2019-10-22 11:22:04,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1806 transitions. [2019-10-22 11:22:04,613 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1806 transitions. Word has length 49 [2019-10-22 11:22:04,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:04,614 INFO L462 AbstractCegarLoop]: Abstraction has 1346 states and 1806 transitions. [2019-10-22 11:22:04,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:04,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1806 transitions. [2019-10-22 11:22:04,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-22 11:22:04,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:04,616 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:04,816 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:04,816 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:04,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:04,817 INFO L82 PathProgramCache]: Analyzing trace with hash 498800428, now seen corresponding path program 1 times [2019-10-22 11:22:04,817 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:04,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1545638850] [2019-10-22 11:22:04,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 11:22:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:04,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:22:04,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:04,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:04,990 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:04,995 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1545638850] [2019-10-22 11:22:04,995 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:04,995 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 11:22:04,996 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620001140] [2019-10-22 11:22:04,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:04,996 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:04,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:04,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:04,997 INFO L87 Difference]: Start difference. First operand 1346 states and 1806 transitions. Second operand 3 states. [2019-10-22 11:22:05,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:05,035 INFO L93 Difference]: Finished difference Result 1346 states and 1806 transitions. [2019-10-22 11:22:05,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:05,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-22 11:22:05,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:05,038 INFO L225 Difference]: With dead ends: 1346 [2019-10-22 11:22:05,038 INFO L226 Difference]: Without dead ends: 610 [2019-10-22 11:22:05,039 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 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 11:22:05,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2019-10-22 11:22:05,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2019-10-22 11:22:05,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-10-22 11:22:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 838 transitions. [2019-10-22 11:22:05,076 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 838 transitions. Word has length 55 [2019-10-22 11:22:05,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:05,076 INFO L462 AbstractCegarLoop]: Abstraction has 610 states and 838 transitions. [2019-10-22 11:22:05,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:05,076 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 838 transitions. [2019-10-22 11:22:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-22 11:22:05,077 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:05,077 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:05,278 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:05,278 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:05,278 INFO L82 PathProgramCache]: Analyzing trace with hash 417791151, now seen corresponding path program 1 times [2019-10-22 11:22:05,279 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:05,279 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [991132719] [2019-10-22 11:22:05,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 11:22:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:05,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:22:05,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:05,425 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:22:05,425 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:05,471 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:22:05,471 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [991132719] [2019-10-22 11:22:05,472 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858013633] [2019-10-22 11:22:05,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 11:22:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:05,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:22:05,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:22:05,585 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:05,593 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:22:05,593 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:22:05,593 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 9 [2019-10-22 11:22:05,594 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466342090] [2019-10-22 11:22:05,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:22:05,594 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:05,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:22:05,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:22:05,595 INFO L87 Difference]: Start difference. First operand 610 states and 838 transitions. Second operand 10 states. [2019-10-22 11:22:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:06,861 INFO L93 Difference]: Finished difference Result 3472 states and 4761 transitions. [2019-10-22 11:22:06,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-22 11:22:06,861 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2019-10-22 11:22:06,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:06,869 INFO L225 Difference]: With dead ends: 3472 [2019-10-22 11:22:06,869 INFO L226 Difference]: Without dead ends: 2999 [2019-10-22 11:22:06,871 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 230 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-10-22 11:22:06,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2019-10-22 11:22:06,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 849. [2019-10-22 11:22:06,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2019-10-22 11:22:06,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1169 transitions. [2019-10-22 11:22:06,943 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1169 transitions. Word has length 61 [2019-10-22 11:22:06,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:06,943 INFO L462 AbstractCegarLoop]: Abstraction has 849 states and 1169 transitions. [2019-10-22 11:22:06,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:22:06,943 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1169 transitions. [2019-10-22 11:22:06,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-22 11:22:06,944 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:06,944 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-22 11:22:07,345 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 11:22:07,345 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:07,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:07,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1375374740, now seen corresponding path program 2 times [2019-10-22 11:22:07,346 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:07,346 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [457569624] [2019-10-22 11:22:07,346 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/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 11:22:08,920 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 11:22:08,920 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-10-22 11:22:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:11,177 INFO L168 tionRefinementEngine]: Strategy WALRUS found a feasible trace [2019-10-22 11:22:11,178 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:22:11,378 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:11,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:11 BoogieIcfgContainer [2019-10-22 11:22:11,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:11,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:11,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:11,578 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:11,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:56" (3/4) ... [2019-10-22 11:22:11,580 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:22:11,767 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7f083aa0-e1e8-4d81-8e9b-a08e6fd521ea/bin/utaipan/witness.graphml [2019-10-22 11:22:11,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:11,769 INFO L168 Benchmark]: Toolchain (without parser) took 17842.42 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 452.5 MB). Free memory was 945.6 MB in the beginning and 846.5 MB in the end (delta: 99.1 MB). Peak memory consumption was 551.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,769 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 11:22:11,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -203.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,770 INFO L168 Benchmark]: Boogie Preprocessor took 123.98 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,770 INFO L168 Benchmark]: RCFGBuilder took 1833.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.8 MB in the end (delta: 154.3 MB). Peak memory consumption was 154.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,771 INFO L168 Benchmark]: TraceAbstraction took 15008.98 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 285.7 MB). Free memory was 966.8 MB in the beginning and 880.9 MB in the end (delta: 86.0 MB). Peak memory consumption was 371.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,771 INFO L168 Benchmark]: Witness Printer took 189.76 ms. Allocated memory is still 1.5 GB. Free memory was 880.9 MB in the beginning and 846.5 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:11,772 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 541.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -203.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 139.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 123.98 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1833.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.8 MB in the end (delta: 154.3 MB). Peak memory consumption was 154.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15008.98 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 285.7 MB). Free memory was 966.8 MB in the beginning and 880.9 MB in the end (delta: 86.0 MB). Peak memory consumption was 371.7 MB. Max. memory is 11.5 GB. * Witness Printer took 189.76 ms. Allocated memory is still 1.5 GB. Free memory was 880.9 MB in the beginning and 846.5 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 602]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L145] int __SELECTED_FEATURE_base ; [L146] int __SELECTED_FEATURE_highWaterSensor ; [L147] int __SELECTED_FEATURE_lowWaterSensor ; [L148] int __SELECTED_FEATURE_methaneQuery ; [L149] int __SELECTED_FEATURE_methaneAlarm ; [L150] int __SELECTED_FEATURE_stopCommand ; [L151] int __SELECTED_FEATURE_startCommand ; [L152] int __GUIDSL_ROOT_PRODUCTION ; [L190] int pumpRunning = 0; [L191] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L973] int waterLevel = 1; [L974] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L1107] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1092] __SELECTED_FEATURE_base = 1 [L1078] int retValue_acc ; [L1079] int choice = __VERIFIER_nondet_int(); [L1082] retValue_acc = choice [L1083] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1093] __SELECTED_FEATURE_highWaterSensor = select_one() [L1078] int retValue_acc ; [L1079] int choice = __VERIFIER_nondet_int(); [L1082] retValue_acc = choice [L1083] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1094] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1078] int retValue_acc ; [L1079] int choice = __VERIFIER_nondet_int(); [L1082] retValue_acc = choice [L1083] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1095] __SELECTED_FEATURE_methaneQuery = select_one() [L1078] int retValue_acc ; [L1079] int choice = __VERIFIER_nondet_int(); [L1082] retValue_acc = choice [L1083] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1096] __SELECTED_FEATURE_methaneAlarm = select_one() [L1078] int retValue_acc ; [L1079] int choice = __VERIFIER_nondet_int(); [L1082] retValue_acc = choice [L1083] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1097] __SELECTED_FEATURE_stopCommand = select_one() [L1078] int retValue_acc ; [L1079] int choice = __VERIFIER_nondet_int(); [L1082] retValue_acc = choice [L1083] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1098] __SELECTED_FEATURE_startCommand = select_one() [L1112] int retValue_acc ; [L1115] retValue_acc = __SELECTED_FEATURE_base [L1116] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L539] tmp = __VERIFIER_nondet_int() [L541] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L991] COND TRUE waterLevel < 2 [L992] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___2)) [L571] tmp___1 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L204] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L340] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L297] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L254] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L226] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L229] COND TRUE ! pumpRunning [L460] int retValue_acc ; [L461] int tmp ; [L462] int tmp___0 ; [L1053] int retValue_acc ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L1056] COND FALSE !(waterLevel < 2) [L1060] retValue_acc = 0 [L1061] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L466] tmp = isHighWaterSensorDry() [L468] COND FALSE !(\read(tmp)) [L471] tmp___0 = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L473] retValue_acc = tmp___0 [L474] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L231] tmp = isHighWaterLevel() [L233] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L382] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L357] pumpRunning = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L156] int tmp ; [L157] int tmp___0 ; [L1044] int retValue_acc ; [L1047] retValue_acc = waterLevel [L1048] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L161] tmp = getWaterLevel() [L163] COND FALSE !(tmp == 0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L531] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L533] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L539] tmp = __VERIFIER_nondet_int() [L541] COND FALSE !(\read(tmp)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___2)) [L571] tmp___1 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L197] COND TRUE \read(pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L979] COND TRUE waterLevel > 0 [L980] waterLevel = waterLevel - 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L204] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L340] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L297] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L254] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L226] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L229] COND FALSE !(! pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L156] int tmp ; [L157] int tmp___0 ; [L1044] int retValue_acc ; [L1047] retValue_acc = waterLevel [L1048] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L161] tmp = getWaterLevel() [L163] COND FALSE !(tmp == 0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L531] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L533] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L539] tmp = __VERIFIER_nondet_int() [L541] COND FALSE !(\read(tmp)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___2)) [L571] tmp___1 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L197] COND TRUE \read(pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L979] COND TRUE waterLevel > 0 [L980] waterLevel = waterLevel - 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L204] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L340] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L297] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L254] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L226] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L229] COND FALSE !(! pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L156] int tmp ; [L157] int tmp___0 ; [L1044] int retValue_acc ; [L1047] retValue_acc = waterLevel [L1048] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L161] tmp = getWaterLevel() [L163] COND TRUE tmp == 0 [L415] int retValue_acc ; [L418] retValue_acc = pumpRunning [L419] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L165] tmp___0 = isPumpRunning() [L167] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L602] __VERIFIER_error() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 470 locations, 3 error locations. Result: UNSAFE, OverallTime: 14.9s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7562 SDtfs, 18437 SDslu, 18316 SDs, 0 SdLazy, 2574 SolverSat, 626 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 965 GetRequests, 901 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1745occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 8730 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 554 NumberOfCodeBlocks, 554 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 926 ConstructedInterpolants, 0 QuantifiedInterpolants, 113391 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2499 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 22 InterpolantComputations, 18 PerfectInterpolantSequences, 58/106 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 incorrect! Received shutdown request...