./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/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 9fdfa874c4a41b156e998d9e6fe5a8270aecd034 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/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 9fdfa874c4a41b156e998d9e6fe5a8270aecd034 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 07:37:25,653 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:37:25,654 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:37:25,662 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:37:25,662 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:37:25,663 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:37:25,664 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:37:25,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:37:25,666 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:37:25,666 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:37:25,667 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:37:25,667 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:37:25,668 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:37:25,668 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:37:25,669 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:37:25,670 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:37:25,670 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:37:25,671 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:37:25,672 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:37:25,673 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:37:25,674 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:37:25,675 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:37:25,676 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:37:25,676 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:37:25,676 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:37:25,677 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:37:25,678 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:37:25,678 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:37:25,679 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:37:25,679 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:37:25,679 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:37:25,680 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:37:25,680 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:37:25,680 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:37:25,681 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:37:25,681 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:37:25,682 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 07:37:25,691 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:37:25,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:37:25,692 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:37:25,692 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:37:25,692 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:37:25,692 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:37:25,692 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 07:37:25,693 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:37:25,693 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 07:37:25,693 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 07:37:25,693 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:37:25,693 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:37:25,694 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:37:25,694 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:37:25,694 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:37:25,694 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:37:25,694 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:37:25,694 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:37:25,694 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:37:25,695 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:37:25,695 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:37:25,695 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:37:25,695 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:37:25,695 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:37:25,695 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:37:25,695 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:37:25,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:37:25,696 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:37:25,696 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:37:25,696 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:37:25,696 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 07:37:25,696 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:37:25,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:37:25,697 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 07:37:25,697 INFO L133 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_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/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 -> 9fdfa874c4a41b156e998d9e6fe5a8270aecd034 [2018-11-10 07:37:25,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:37:25,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:37:25,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:37:25,731 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:37:25,731 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:37:25,731 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/../../sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:37:25,767 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data/f719d659a/9aaa6391eca649cea7bc10cfec8d1ef3/FLAGcb5c03c6b [2018-11-10 07:37:26,190 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:37:26,191 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:37:26,198 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data/f719d659a/9aaa6391eca649cea7bc10cfec8d1ef3/FLAGcb5c03c6b [2018-11-10 07:37:26,206 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data/f719d659a/9aaa6391eca649cea7bc10cfec8d1ef3 [2018-11-10 07:37:26,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:37:26,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:37:26,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:37:26,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:37:26,211 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:37:26,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb1b920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26, skipping insertion in model container [2018-11-10 07:37:26,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:37:26,244 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:37:26,412 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:37:26,420 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:37:26,447 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:37:26,476 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:37:26,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26 WrapperNode [2018-11-10 07:37:26,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:37:26,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:37:26,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:37:26,477 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:37:26,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:37:26,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:37:26,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:37:26,550 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:37:26,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... [2018-11-10 07:37:26,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:37:26,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:37:26,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:37:26,568 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:37:26,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/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 [2018-11-10 07:37:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2018-11-10 07:37:26,614 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2018-11-10 07:37:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:37:26,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:37:26,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:37:26,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:37:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:37:26,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:37:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2018-11-10 07:37:26,615 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2018-11-10 07:37:26,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:37:26,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:37:26,831 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:37:26,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:37:26 BoogieIcfgContainer [2018-11-10 07:37:26,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:37:26,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:37:26,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:37:26,835 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:37:26,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:37:26" (1/3) ... [2018-11-10 07:37:26,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccddcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:37:26, skipping insertion in model container [2018-11-10 07:37:26,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:26" (2/3) ... [2018-11-10 07:37:26,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccddcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:37:26, skipping insertion in model container [2018-11-10 07:37:26,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:37:26" (3/3) ... [2018-11-10 07:37:26,838 INFO L112 eAbstractionObserver]: Analyzing ICFG list_search_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:37:26,847 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:37:26,853 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:37:26,867 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:37:26,892 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:37:26,892 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:37:26,893 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:37:26,893 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:37:26,893 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:37:26,893 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:37:26,893 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:37:26,893 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:37:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-10 07:37:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 07:37:26,913 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:26,913 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:37:26,915 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:26,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:26,921 INFO L82 PathProgramCache]: Analyzing trace with hash -2034878889, now seen corresponding path program 1 times [2018-11-10 07:37:26,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:37:26,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:26,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:26,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:26,961 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:37:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:27,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:27,157 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 07:37:27,158 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-11-10 07:37:27,160 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [9], [10], [14], [16], [18], [20], [22], [24], [41], [44], [46], [52], [71], [73], [74], [75], [76], [77], [79], [80], [81], [82], [83], [84], [85], [86], [87], [88], [89] [2018-11-10 07:37:27,193 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 07:37:27,193 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 07:37:27,520 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 07:37:27,521 INFO L272 AbstractInterpreter]: Visited 25 different actions 37 times. Never merged. Never widened. Never found a fixpoint. Largest state had 47 variables. [2018-11-10 07:37:27,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:27,527 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 07:37:27,871 INFO L227 lantSequenceWeakener]: Weakened 36 states. On average, predicates are now at 83.33% of their original sizes. [2018-11-10 07:37:27,871 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 07:37:28,144 INFO L415 sIntCurrentIteration]: We unified 44 AI predicates to 44 [2018-11-10 07:37:28,144 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 07:37:28,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 07:37:28,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-10 07:37:28,145 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 07:37:28,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-10 07:37:28,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-10 07:37:28,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-11-10 07:37:28,156 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 18 states. [2018-11-10 07:37:30,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:30,042 INFO L93 Difference]: Finished difference Result 106 states and 131 transitions. [2018-11-10 07:37:30,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-10 07:37:30,043 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2018-11-10 07:37:30,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:30,051 INFO L225 Difference]: With dead ends: 106 [2018-11-10 07:37:30,051 INFO L226 Difference]: Without dead ends: 59 [2018-11-10 07:37:30,054 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2018-11-10 07:37:30,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-10 07:37:30,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2018-11-10 07:37:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-10 07:37:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-11-10 07:37:30,083 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 45 [2018-11-10 07:37:30,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:30,083 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-11-10 07:37:30,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-10 07:37:30,083 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-11-10 07:37:30,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 07:37:30,084 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:30,085 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:37:30,085 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:30,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:30,086 INFO L82 PathProgramCache]: Analyzing trace with hash -404698338, now seen corresponding path program 1 times [2018-11-10 07:37:30,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:37:30,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:30,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:30,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:30,087 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:37:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:30,178 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:30,178 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:30,179 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 07:37:30,179 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-11-10 07:37:30,179 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [9], [10], [14], [16], [18], [20], [22], [24], [41], [44], [46], [52], [56], [58], [61], [67], [73], [74], [75], [76], [77], [79], [80], [81], [82], [83], [84], [85], [86], [87], [88], [89] [2018-11-10 07:37:30,181 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 07:37:30,181 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 07:37:30,266 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 07:37:30,266 INFO L272 AbstractInterpreter]: Visited 36 different actions 48 times. Never merged. Never widened. Never found a fixpoint. Largest state had 47 variables. [2018-11-10 07:37:30,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:30,268 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 07:37:30,268 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:30,268 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:37:30,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:30,286 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 07:37:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:30,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 07:37:30,387 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:30,484 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 07:37:30,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2018-11-10 07:37:30,484 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 07:37:30,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 07:37:30,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 07:37:30,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-10 07:37:30,488 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2018-11-10 07:37:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:30,582 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2018-11-10 07:37:30,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 07:37:30,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-11-10 07:37:30,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:30,585 INFO L225 Difference]: With dead ends: 82 [2018-11-10 07:37:30,585 INFO L226 Difference]: Without dead ends: 49 [2018-11-10 07:37:30,586 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 94 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-10 07:37:30,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-10 07:37:30,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-10 07:37:30,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-10 07:37:30,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2018-11-10 07:37:30,593 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 48 [2018-11-10 07:37:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:30,594 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2018-11-10 07:37:30,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 07:37:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2018-11-10 07:37:30,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 07:37:30,595 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:30,595 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:37:30,595 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:30,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:30,596 INFO L82 PathProgramCache]: Analyzing trace with hash -2103989024, now seen corresponding path program 1 times [2018-11-10 07:37:30,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:37:30,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:30,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:30,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:30,599 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:37:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 07:37:30,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:37:30,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 07:37:30,731 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 07:37:30,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 07:37:30,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 07:37:30,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-10 07:37:30,732 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 9 states. [2018-11-10 07:37:30,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:30,870 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2018-11-10 07:37:30,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 07:37:30,870 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-11-10 07:37:30,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:30,871 INFO L225 Difference]: With dead ends: 66 [2018-11-10 07:37:30,871 INFO L226 Difference]: Without dead ends: 57 [2018-11-10 07:37:30,872 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-11-10 07:37:30,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-10 07:37:30,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2018-11-10 07:37:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-10 07:37:30,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-11-10 07:37:30,879 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 48 [2018-11-10 07:37:30,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:30,879 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-11-10 07:37:30,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 07:37:30,879 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-11-10 07:37:30,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 07:37:30,880 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:30,880 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:37:30,880 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:30,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:30,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1797951262, now seen corresponding path program 1 times [2018-11-10 07:37:30,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:37:30,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:30,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:30,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:30,883 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:37:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:30,955 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 07:37:30,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:37:30,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 07:37:30,956 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 07:37:30,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 07:37:30,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 07:37:30,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-10 07:37:30,957 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 7 states. [2018-11-10 07:37:31,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:31,036 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2018-11-10 07:37:31,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 07:37:31,037 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-11-10 07:37:31,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:31,038 INFO L225 Difference]: With dead ends: 66 [2018-11-10 07:37:31,038 INFO L226 Difference]: Without dead ends: 53 [2018-11-10 07:37:31,039 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-10 07:37:31,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-10 07:37:31,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-11-10 07:37:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-10 07:37:31,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2018-11-10 07:37:31,045 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 48 [2018-11-10 07:37:31,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:31,045 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2018-11-10 07:37:31,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 07:37:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2018-11-10 07:37:31,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-10 07:37:31,046 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:31,047 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2018-11-10 07:37:31,047 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:31,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:31,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1333266038, now seen corresponding path program 1 times [2018-11-10 07:37:31,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:37:31,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:31,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:31,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:31,048 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:37:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 07:37:31,507 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:31,507 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 07:37:31,507 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-11-10 07:37:31,507 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [9], [10], [14], [16], [18], [20], [22], [24], [41], [44], [46], [52], [56], [58], [61], [67], [69], [73], [74], [75], [76], [77], [79], [80], [81], [82], [83], [84], [85], [86], [87], [88], [89] [2018-11-10 07:37:31,509 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 07:37:31,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 07:37:31,742 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 07:37:31,742 INFO L272 AbstractInterpreter]: Visited 38 different actions 83 times. Merged at 12 different actions 25 times. Never widened. Found 5 fixpoints after 5 different actions. Largest state had 47 variables. [2018-11-10 07:37:31,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:31,749 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 07:37:31,749 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:31,749 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:37:31,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:31,765 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 07:37:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:31,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:31,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 07:37:31,838 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:31,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:31,850 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 07:37:31,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 07:37:31,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 07:37:31,880 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:31,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:31,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:31,884 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-10 07:37:31,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:31,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:31,999 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:32,001 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:32,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:32,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:32,013 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:32,015 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:32,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-10 07:37:32,023 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:49, output treesize:41 [2018-11-10 07:37:32,104 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:32,105 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:32,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 10 [2018-11-10 07:37:32,106 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:32,116 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-11-10 07:37:32,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 07:37:32,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 07:37:32,128 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:32,135 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:32,145 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:32,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:32,158 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:53, output treesize:33 [2018-11-10 07:37:32,376 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-10 07:37:32,377 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:32,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:32,378 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:1 [2018-11-10 07:37:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:32,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:33,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-10 07:37:33,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 07:37:33,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:33,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-10 07:37:33,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-10 07:37:33,231 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:33,233 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:33,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-10 07:37:33,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 26 [2018-11-10 07:37:33,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2018-11-10 07:37:33,262 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:33,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2018-11-10 07:37:33,267 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:33,271 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 16 [2018-11-10 07:37:33,272 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:33,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-10 07:37:33,297 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:33,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 8 [2018-11-10 07:37:33,299 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:33,310 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 07:37:33,320 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 07:37:33,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2018-11-10 07:37:33,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 29 [2018-11-10 07:37:33,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-10 07:37:33,357 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:33,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-10 07:37:33,359 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:33,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-11-10 07:37:33,361 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:33,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 15 [2018-11-10 07:37:33,383 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:33,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 15 [2018-11-10 07:37:33,389 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:33,409 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 07:37:33,439 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 07:37:33,456 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-10 07:37:33,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-10 07:37:33,472 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 7 variables, input treesize:45, output treesize:43 [2018-11-10 07:37:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:33,554 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 07:37:33,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 16, 15] total 48 [2018-11-10 07:37:33,554 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 07:37:33,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-11-10 07:37:33,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-11-10 07:37:33,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=2079, Unknown=1, NotChecked=0, Total=2256 [2018-11-10 07:37:33,555 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 35 states. [2018-11-10 07:37:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:34,926 INFO L93 Difference]: Finished difference Result 74 states and 77 transitions. [2018-11-10 07:37:34,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-10 07:37:34,927 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 52 [2018-11-10 07:37:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:34,927 INFO L225 Difference]: With dead ends: 74 [2018-11-10 07:37:34,927 INFO L226 Difference]: Without dead ends: 58 [2018-11-10 07:37:34,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 79 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=473, Invalid=4082, Unknown=1, NotChecked=0, Total=4556 [2018-11-10 07:37:34,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-10 07:37:34,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2018-11-10 07:37:34,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-10 07:37:34,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2018-11-10 07:37:34,937 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 52 [2018-11-10 07:37:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:34,937 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2018-11-10 07:37:34,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-11-10 07:37:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-11-10 07:37:34,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-10 07:37:34,938 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:34,938 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2018-11-10 07:37:34,939 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:34,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:34,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1630674636, now seen corresponding path program 2 times [2018-11-10 07:37:34,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:37:34,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:34,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:34,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:37:34,940 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:37:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:35,929 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 07:37:35,930 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:35,930 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 07:37:35,930 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-10 07:37:35,930 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 07:37:35,930 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:35,930 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:37:35,935 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-10 07:37:35,935 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-10 07:37:36,007 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-10 07:37:36,007 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:37:36,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:36,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 07:37:36,016 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,023 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,023 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-10 07:37:36,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 07:37:36,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 07:37:36,029 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,030 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,034 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,034 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:16 [2018-11-10 07:37:36,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:36,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:36,091 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,093 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:36,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:36,104 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,106 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-10 07:37:36,112 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:52, output treesize:44 [2018-11-10 07:37:36,205 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:36,207 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:36,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 39 [2018-11-10 07:37:36,209 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 35 [2018-11-10 07:37:36,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 07:37:36,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 07:37:36,228 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:36,233 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:36,241 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:36,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,254 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:59, output treesize:49 [2018-11-10 07:37:36,503 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:36,504 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:36,505 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:36,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-11-10 07:37:36,505 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2018-11-10 07:37:36,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:36,527 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,533 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-11-10 07:37:36,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:36,555 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,560 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 35 [2018-11-10 07:37:36,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 07:37:36,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 07:37:36,590 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:36,597 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:36,606 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:36,622 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:36,622 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 9 variables, input treesize:97, output treesize:110 [2018-11-10 07:37:37,067 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-10 07:37:37,067 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:37,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:37,068 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:147, output treesize:1 [2018-11-10 07:37:37,080 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 07:37:37,080 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:38,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 175 [2018-11-10 07:37:38,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 07:37:38,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:38,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 148 [2018-11-10 07:37:38,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 138 [2018-11-10 07:37:38,698 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:38,707 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:38,712 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:38,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 115 [2018-11-10 07:37:38,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 07:37:38,744 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:38,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 92 [2018-11-10 07:37:38,761 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 82 [2018-11-10 07:37:38,761 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:38,765 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:38,769 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:38,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 2 dim-2 vars, End of recursive call: 9 dim-0 vars, and 1 xjuncts. [2018-11-10 07:37:38,775 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 12 variables, input treesize:213, output treesize:97 [2018-11-10 07:37:39,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 177 [2018-11-10 07:37:39,422 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-11-10 07:37:39,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 154 [2018-11-10 07:37:39,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 138 [2018-11-10 07:37:39,442 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,448 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,459 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:39,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 112 [2018-11-10 07:37:39,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-11-10 07:37:39,513 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 86 [2018-11-10 07:37:39,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 70 [2018-11-10 07:37:39,528 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,535 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,543 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 112 [2018-11-10 07:37:39,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-11-10 07:37:39,578 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 86 [2018-11-10 07:37:39,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 70 [2018-11-10 07:37:39,592 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,597 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,604 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:39,827 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:37:39,828 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: alternation not yet supported at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.applyNonSddEliminations(ElimStorePlain.java:347) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:264) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2018-11-10 07:37:39,830 INFO L168 Benchmark]: Toolchain (without parser) took 13622.51 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 545.8 MB). Free memory was 951.1 MB in the beginning and 1.5 GB in the end (delta: -576.8 MB). Peak memory consumption was 658.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:37:39,831 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:37:39,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.84 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 929.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:37:39,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 929.6 MB in the beginning and 1.2 GB in the end (delta: -227.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:37:39,832 INFO L168 Benchmark]: Boogie Preprocessor took 17.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:37:39,832 INFO L168 Benchmark]: RCFGBuilder took 263.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:37:39,833 INFO L168 Benchmark]: TraceAbstraction took 12997.68 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 383.3 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -400.2 MB). Peak memory consumption was 672.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:37:39,835 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.84 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 929.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 929.6 MB in the beginning and 1.2 GB in the end (delta: -227.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 263.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12997.68 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 383.3 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -400.2 MB). Peak memory consumption was 672.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: alternation not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: alternation not yet supported: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.applyNonSddEliminations(ElimStorePlain.java:347) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:37:41,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:37:41,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:37:41,258 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:37:41,258 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:37:41,259 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:37:41,260 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:37:41,261 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:37:41,262 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:37:41,262 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:37:41,263 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:37:41,263 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:37:41,264 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:37:41,265 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:37:41,266 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:37:41,266 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:37:41,267 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:37:41,268 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:37:41,270 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:37:41,271 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:37:41,272 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:37:41,273 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:37:41,275 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:37:41,275 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:37:41,275 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:37:41,276 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:37:41,276 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:37:41,278 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:37:41,278 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:37:41,279 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:37:41,279 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:37:41,279 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:37:41,280 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:37:41,280 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:37:41,280 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:37:41,282 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:37:41,282 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 07:37:41,292 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:37:41,292 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:37:41,293 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:37:41,293 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:37:41,294 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:37:41,294 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:37:41,294 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:37:41,294 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:37:41,294 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:37:41,295 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:37:41,295 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:37:41,295 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:37:41,295 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:37:41,295 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:37:41,295 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:37:41,295 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:37:41,296 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:37:41,296 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:37:41,296 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:37:41,296 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:37:41,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:37:41,296 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:37:41,296 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:37:41,298 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:37:41,298 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:37:41,299 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:37:41,299 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:37:41,299 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:37:41,299 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 07:37:41,299 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:37:41,299 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:37:41,299 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:37:41,299 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/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 -> 9fdfa874c4a41b156e998d9e6fe5a8270aecd034 [2018-11-10 07:37:41,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:37:41,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:37:41,342 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:37:41,343 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:37:41,344 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:37:41,344 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/../../sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:37:41,388 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data/4de5ef59d/4edbe7c207e845bdb4cac41f72357522/FLAGeffd8218a [2018-11-10 07:37:41,710 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:37:41,711 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:37:41,719 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data/4de5ef59d/4edbe7c207e845bdb4cac41f72357522/FLAGeffd8218a [2018-11-10 07:37:41,728 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/data/4de5ef59d/4edbe7c207e845bdb4cac41f72357522 [2018-11-10 07:37:41,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:37:41,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:37:41,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:37:41,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:37:41,733 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:37:41,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:37:41" (1/1) ... [2018-11-10 07:37:41,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98dadd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:41, skipping insertion in model container [2018-11-10 07:37:41,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:37:41" (1/1) ... [2018-11-10 07:37:41,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:37:41,771 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:37:41,974 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:37:41,985 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:37:42,015 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:37:42,052 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:37:42,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42 WrapperNode [2018-11-10 07:37:42,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:37:42,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:37:42,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:37:42,054 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:37:42,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... [2018-11-10 07:37:42,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... [2018-11-10 07:37:42,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:37:42,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:37:42,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:37:42,120 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:37:42,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... [2018-11-10 07:37:42,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... [2018-11-10 07:37:42,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... [2018-11-10 07:37:42,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... [2018-11-10 07:37:42,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... [2018-11-10 07:37:42,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... [2018-11-10 07:37:42,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... [2018-11-10 07:37:42,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:37:42,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:37:42,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:37:42,142 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:37:42,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/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 [2018-11-10 07:37:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2018-11-10 07:37:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2018-11-10 07:37:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:37:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:37:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:37:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:37:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:37:42,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:37:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2018-11-10 07:37:42,176 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2018-11-10 07:37:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:37:42,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:37:42,378 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:37:42,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:37:42 BoogieIcfgContainer [2018-11-10 07:37:42,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:37:42,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:37:42,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:37:42,381 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:37:42,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:37:41" (1/3) ... [2018-11-10 07:37:42,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ccb682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:37:42, skipping insertion in model container [2018-11-10 07:37:42,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:37:42" (2/3) ... [2018-11-10 07:37:42,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ccb682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:37:42, skipping insertion in model container [2018-11-10 07:37:42,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:37:42" (3/3) ... [2018-11-10 07:37:42,383 INFO L112 eAbstractionObserver]: Analyzing ICFG list_search_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:37:42,389 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:37:42,393 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:37:42,401 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:37:42,418 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:37:42,418 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:37:42,419 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:37:42,419 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:37:42,419 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:37:42,419 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:37:42,419 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:37:42,419 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:37:42,419 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:37:42,428 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-10 07:37:42,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 07:37:42,432 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:42,433 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:37:42,435 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:42,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:42,438 INFO L82 PathProgramCache]: Analyzing trace with hash -2034878889, now seen corresponding path program 1 times [2018-11-10 07:37:42,441 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:37:42,441 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:37:42,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:42,589 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-10 07:37:42,610 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:37:42,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:37:42,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:37:42,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:37:42,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:37:42,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:37:42,629 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-10 07:37:42,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:42,646 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2018-11-10 07:37:42,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:37:42,647 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 45 [2018-11-10 07:37:42,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:42,653 INFO L225 Difference]: With dead ends: 61 [2018-11-10 07:37:42,653 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 07:37:42,655 INFO L605 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 [2018-11-10 07:37:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 07:37:42,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 07:37:42,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 07:37:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-10 07:37:42,681 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 45 [2018-11-10 07:37:42,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:42,683 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-10 07:37:42,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:37:42,683 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-10 07:37:42,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 07:37:42,685 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:42,685 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:37:42,685 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:42,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:42,686 INFO L82 PathProgramCache]: Analyzing trace with hash -404698338, now seen corresponding path program 1 times [2018-11-10 07:37:42,686 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:37:42,686 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:37:42,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:42,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:42,881 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 07:37:42,881 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:42,997 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:42,999 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:42,999 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:37:43,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:43,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 07:37:43,069 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:43,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:43,152 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 07:37:43,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 7 [2018-11-10 07:37:43,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 07:37:43,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 07:37:43,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-10 07:37:43,154 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 7 states. [2018-11-10 07:37:43,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:43,380 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2018-11-10 07:37:43,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 07:37:43,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-11-10 07:37:43,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:43,381 INFO L225 Difference]: With dead ends: 75 [2018-11-10 07:37:43,382 INFO L226 Difference]: Without dead ends: 50 [2018-11-10 07:37:43,383 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-10 07:37:43,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-10 07:37:43,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 39. [2018-11-10 07:37:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-10 07:37:43,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-11-10 07:37:43,390 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 48 [2018-11-10 07:37:43,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:43,390 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-11-10 07:37:43,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 07:37:43,391 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-10 07:37:43,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 07:37:43,393 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:43,393 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:37:43,393 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:43,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:43,393 INFO L82 PathProgramCache]: Analyzing trace with hash -2103989024, now seen corresponding path program 1 times [2018-11-10 07:37:43,394 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:37:43,394 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:37:43,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:43,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:43,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 07:37:43,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 07:37:43,583 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:43,585 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:43,589 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:43,589 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-11-10 07:37:43,690 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 07:37:43,690 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:37:43,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:37:43,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 07:37:43,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 07:37:43,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 07:37:43,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-10 07:37:43,692 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 9 states. [2018-11-10 07:37:43,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:43,940 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2018-11-10 07:37:43,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 07:37:43,941 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-11-10 07:37:43,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:43,942 INFO L225 Difference]: With dead ends: 56 [2018-11-10 07:37:43,942 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 07:37:43,943 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-10 07:37:43,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 07:37:43,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-11-10 07:37:43,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 07:37:43,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2018-11-10 07:37:43,949 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 48 [2018-11-10 07:37:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:43,949 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2018-11-10 07:37:43,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 07:37:43,950 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-11-10 07:37:43,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 07:37:43,950 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:43,950 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:37:43,950 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:43,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:43,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1797951262, now seen corresponding path program 1 times [2018-11-10 07:37:43,951 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:37:43,951 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:37:43,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:44,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:44,056 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 07:37:44,056 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:37:44,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:37:44,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 07:37:44,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 07:37:44,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 07:37:44,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:37:44,058 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 6 states. [2018-11-10 07:37:44,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:44,141 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2018-11-10 07:37:44,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 07:37:44,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-11-10 07:37:44,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:44,142 INFO L225 Difference]: With dead ends: 57 [2018-11-10 07:37:44,143 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 07:37:44,143 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-10 07:37:44,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 07:37:44,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2018-11-10 07:37:44,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 07:37:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2018-11-10 07:37:44,148 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 48 [2018-11-10 07:37:44,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:44,148 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2018-11-10 07:37:44,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 07:37:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2018-11-10 07:37:44,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-10 07:37:44,149 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:44,149 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2018-11-10 07:37:44,150 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:44,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:44,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1333266038, now seen corresponding path program 1 times [2018-11-10 07:37:44,150 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:37:44,150 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:37:44,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:44,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:44,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 07:37:44,373 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,396 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,397 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-10 07:37:44,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 07:37:44,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 07:37:44,409 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,410 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,415 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,415 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2018-11-10 07:37:44,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:44,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:44,515 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,520 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:44,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:44,555 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,558 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-10 07:37:44,575 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:49, output treesize:41 [2018-11-10 07:37:44,689 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:44,691 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:44,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-11-10 07:37:44,692 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 37 [2018-11-10 07:37:44,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 07:37:44,736 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 07:37:44,737 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:44,754 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:44,776 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:44,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:44,809 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:60, output treesize:38 [2018-11-10 07:37:45,127 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-10 07:37:45,128 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:45,130 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:45,130 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:51, output treesize:1 [2018-11-10 07:37:45,140 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:45,140 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:45,266 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2018-11-10 07:37:45,927 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-11-10 07:37:46,162 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-11-10 07:37:46,542 WARN L179 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-11-10 07:37:46,857 WARN L179 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-11-10 07:37:46,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:46,998 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:37:47,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:47,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:47,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 07:37:47,070 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,074 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 07:37:47,116 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 07:37:47,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 07:37:47,118 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,120 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,123 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,123 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2018-11-10 07:37:47,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:47,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:47,272 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,279 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:47,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:47,317 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,320 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,340 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-10 07:37:47,341 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:49, output treesize:41 [2018-11-10 07:37:47,378 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:47,379 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:47,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 10 [2018-11-10 07:37:47,380 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-11-10 07:37:47,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 07:37:47,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 07:37:47,420 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:47,436 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:47,456 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:47,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:47,490 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:53, output treesize:33 [2018-11-10 07:37:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:47,791 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:47,902 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2018-11-10 07:37:48,304 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-11-10 07:37:48,549 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-11-10 07:37:48,937 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-11-10 07:37:49,262 WARN L179 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-11-10 07:37:49,385 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:37:49,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 25 [2018-11-10 07:37:49,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-10 07:37:49,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-10 07:37:49,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=812, Unknown=1, NotChecked=0, Total=930 [2018-11-10 07:37:49,386 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 25 states. [2018-11-10 07:37:49,990 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-11-10 07:37:51,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:51,660 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2018-11-10 07:37:51,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-10 07:37:51,661 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 52 [2018-11-10 07:37:51,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:51,662 INFO L225 Difference]: With dead ends: 65 [2018-11-10 07:37:51,662 INFO L226 Difference]: Without dead ends: 56 [2018-11-10 07:37:51,662 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 109 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=257, Invalid=1634, Unknown=1, NotChecked=0, Total=1892 [2018-11-10 07:37:51,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-10 07:37:51,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 47. [2018-11-10 07:37:51,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-10 07:37:51,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2018-11-10 07:37:51,667 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 52 [2018-11-10 07:37:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:51,667 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2018-11-10 07:37:51,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-10 07:37:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2018-11-10 07:37:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-10 07:37:51,668 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:51,668 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2018-11-10 07:37:51,669 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:51,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:51,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1726293048, now seen corresponding path program 1 times [2018-11-10 07:37:51,669 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:37:51,669 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:37:51,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:51,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:51,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:51,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:51,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:51,846 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:51,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:51,851 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-10 07:37:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:51,946 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:52,347 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:37:52,347 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:37:52,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:37:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:37:52,394 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:52,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:52,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:52,406 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:52,408 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:52,414 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:52,414 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-10 07:37:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:52,419 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:52,661 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 07:37:52,677 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 07:37:52,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12] total 20 [2018-11-10 07:37:52,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-10 07:37:52,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-10 07:37:52,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2018-11-10 07:37:52,678 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand 20 states. [2018-11-10 07:37:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:37:53,393 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2018-11-10 07:37:53,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-10 07:37:53,393 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 52 [2018-11-10 07:37:53,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:37:53,394 INFO L225 Difference]: With dead ends: 66 [2018-11-10 07:37:53,394 INFO L226 Difference]: Without dead ends: 53 [2018-11-10 07:37:53,395 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2018-11-10 07:37:53,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-10 07:37:53,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2018-11-10 07:37:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-10 07:37:53,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2018-11-10 07:37:53,402 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 52 [2018-11-10 07:37:53,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:37:53,402 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2018-11-10 07:37:53,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-10 07:37:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2018-11-10 07:37:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-10 07:37:53,403 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:37:53,403 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2018-11-10 07:37:53,403 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:37:53,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:37:53,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1630674636, now seen corresponding path program 2 times [2018-11-10 07:37:53,404 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:37:53,404 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:37:53,426 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-10 07:37:53,688 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:37:53,689 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:37:53,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:37:53,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 07:37:53,756 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:53,766 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:53,767 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-10 07:37:53,778 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 07:37:53,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 07:37:53,779 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:53,781 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:53,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:53,787 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2018-11-10 07:37:53,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:53,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:53,879 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:53,883 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:53,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:37:53,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:53,920 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:53,924 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:53,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-10 07:37:53,943 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:55, output treesize:47 [2018-11-10 07:37:54,047 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:54,049 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:54,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 39 [2018-11-10 07:37:54,050 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:54,078 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 35 [2018-11-10 07:37:54,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 07:37:54,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 07:37:54,093 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:54,106 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:54,124 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:54,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:54,158 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:62, output treesize:53 [2018-11-10 07:37:54,654 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:54,655 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:37:54,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-11-10 07:37:54,656 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:54,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2018-11-10 07:37:54,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 07:37:54,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 07:37:54,814 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-10 07:37:54,845 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:54,882 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:37:54,961 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:54,965 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 69 [2018-11-10 07:37:54,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-11-10 07:37:54,970 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:54,990 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:54,998 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:55,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 65 [2018-11-10 07:37:55,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-11-10 07:37:55,006 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:55,025 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:55,092 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:37:55,101 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-10 07:37:55,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:37:55,104 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:55,114 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:55,174 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:55,175 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 9 variables, input treesize:94, output treesize:79 [2018-11-10 07:37:55,925 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-10 07:37:55,925 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:37:55,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:37:55,927 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:116, output treesize:1 [2018-11-10 07:37:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 07:37:55,939 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:37:56,200 WARN L179 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2018-11-10 07:37:57,294 WARN L179 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-11-10 07:37:57,552 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-11-10 07:37:58,009 WARN L179 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-11-10 07:37:58,375 WARN L179 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-11-10 07:38:00,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:38:00,766 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:38:00,771 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 07:38:00,855 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:38:00,855 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:38:00,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:38:00,864 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 07:38:00,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:00,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:00,878 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 07:38:00,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 07:38:00,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 07:38:00,952 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:00,954 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:00,957 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:00,958 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2018-11-10 07:38:01,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:38:01,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:01,201 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,206 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:38:01,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:01,244 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,248 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-10 07:38:01,268 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:55, output treesize:47 [2018-11-10 07:38:01,310 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:01,312 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:01,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 41 [2018-11-10 07:38:01,313 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-11-10 07:38:01,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 07:38:01,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 07:38:01,356 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-10 07:38:01,371 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:38:01,391 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:38:01,425 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,426 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:61, output treesize:50 [2018-11-10 07:38:01,652 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:01,652 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:38:01,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-11-10 07:38:01,653 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,752 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:01,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 57 [2018-11-10 07:38:01,760 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-11-10 07:38:01,760 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,786 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-10 07:38:01,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 07:38:01,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 07:38:01,875 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-10 07:38:01,897 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:38:01,924 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:38:01,971 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:01,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 46 [2018-11-10 07:38:01,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:01,981 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:01,993 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:02,003 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:02,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 50 [2018-11-10 07:38:02,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:02,017 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:02,038 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:02,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:02,091 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 9 variables, input treesize:89, output treesize:74 [2018-11-10 07:38:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 07:38:02,892 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:38:03,121 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-11-10 07:38:03,610 WARN L179 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-11-10 07:38:03,890 WARN L179 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-11-10 07:38:04,348 WARN L179 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-11-10 07:38:04,703 WARN L179 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-11-10 07:38:07,048 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:38:07,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 33 [2018-11-10 07:38:07,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-10 07:38:07,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-10 07:38:07,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1410, Unknown=1, NotChecked=0, Total=1560 [2018-11-10 07:38:07,049 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 33 states. [2018-11-10 07:38:08,240 WARN L179 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2018-11-10 07:38:08,995 WARN L179 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 54 [2018-11-10 07:38:09,575 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2018-11-10 07:38:11,324 WARN L179 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2018-11-10 07:38:11,796 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2018-11-10 07:38:13,722 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2018-11-10 07:38:14,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:38:14,031 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2018-11-10 07:38:14,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-10 07:38:14,032 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 56 [2018-11-10 07:38:14,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:38:14,032 INFO L225 Difference]: With dead ends: 74 [2018-11-10 07:38:14,033 INFO L226 Difference]: Without dead ends: 65 [2018-11-10 07:38:14,033 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 115 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=345, Invalid=2960, Unknown=1, NotChecked=0, Total=3306 [2018-11-10 07:38:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-10 07:38:14,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 51. [2018-11-10 07:38:14,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-10 07:38:14,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2018-11-10 07:38:14,042 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 56 [2018-11-10 07:38:14,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:38:14,042 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2018-11-10 07:38:14,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-10 07:38:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2018-11-10 07:38:14,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-10 07:38:14,043 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:38:14,043 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2018-11-10 07:38:14,043 INFO L424 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:38:14,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:38:14,044 INFO L82 PathProgramCache]: Analyzing trace with hash -2023701646, now seen corresponding path program 2 times [2018-11-10 07:38:14,044 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:38:14,044 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:38:14,068 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 07:38:14,305 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:38:14,305 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:38:14,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:38:14,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 07:38:14,394 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,399 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-10 07:38:14,410 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:38:14,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:14,412 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,416 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,424 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2018-11-10 07:38:14,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:38:14,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:14,536 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,556 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2018-11-10 07:38:14,642 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:14,644 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:14,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-10 07:38:14,645 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 31 [2018-11-10 07:38:14,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:14,666 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,671 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:14,683 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:54, output treesize:45 [2018-11-10 07:38:14,944 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 07:38:14,944 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:38:15,102 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-11-10 07:38:15,774 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-11-10 07:38:25,950 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:38:25,950 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:38:25,955 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 07:38:26,029 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:38:26,029 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:38:26,033 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:38:26,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 07:38:26,036 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,041 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,041 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-10 07:38:26,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:38:26,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:26,047 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,058 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,058 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2018-11-10 07:38:26,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 07:38:26,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:26,073 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,076 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,087 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2018-11-10 07:38:26,098 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:26,099 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:38:26,099 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-10 07:38:26,099 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 23 [2018-11-10 07:38:26,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 07:38:26,118 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,124 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,133 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:38:26,133 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:46, output treesize:37 [2018-11-10 07:38:26,178 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 07:38:26,178 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:38:26,309 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2018-11-10 07:38:26,643 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-11-10 07:38:38,875 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:38:38,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2018-11-10 07:38:38,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-10 07:38:38,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-10 07:38:38,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=527, Unknown=5, NotChecked=0, Total=600 [2018-11-10 07:38:38,876 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand 18 states. [2018-11-10 07:38:40,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:38:40,790 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2018-11-10 07:38:40,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-10 07:38:40,790 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 56 [2018-11-10 07:38:40,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:38:40,791 INFO L225 Difference]: With dead ends: 69 [2018-11-10 07:38:40,791 INFO L226 Difference]: Without dead ends: 56 [2018-11-10 07:38:40,792 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=317, Invalid=1748, Unknown=5, NotChecked=0, Total=2070 [2018-11-10 07:38:40,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-10 07:38:40,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2018-11-10 07:38:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-10 07:38:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-11-10 07:38:40,798 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 56 [2018-11-10 07:38:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:38:40,798 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-11-10 07:38:40,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-10 07:38:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-11-10 07:38:40,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-10 07:38:40,799 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:38:40,799 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:38:40,799 INFO L424 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:38:40,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:38:40,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1557928994, now seen corresponding path program 3 times [2018-11-10 07:38:40,800 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:38:40,800 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:38:40,812 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-10 07:38:41,480 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-10 07:38:41,481 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2018-11-10 07:38:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:38:42,000 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:38:42,012 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,013 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,013 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,013 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,014 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,014 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,014 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,015 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,015 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,016 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,016 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,016 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,016 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,020 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,021 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,021 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,021 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,022 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,022 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,022 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,022 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,022 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,023 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,023 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,023 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,024 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,024 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,024 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,024 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,025 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,025 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,025 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,037 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,037 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,037 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,038 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,038 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,038 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,039 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,039 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,039 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,039 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,039 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 915131655bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,039 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,040 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 915131655bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,040 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,040 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,040 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,040 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,040 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 639499465bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,041 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 639499465bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,041 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,041 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,041 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,042 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 3383626022bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,042 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,042 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,042 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 3383626022bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,042 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,042 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,043 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,043 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,043 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,043 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,043 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,043 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,044 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,044 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,044 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,044 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,045 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,045 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,045 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,045 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,045 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,046 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,046 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,046 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,046 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,047 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,047 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,047 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:38:42 BoogieIcfgContainer [2018-11-10 07:38:42,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:38:42,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:38:42,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:38:42,056 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:38:42,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:37:42" (3/4) ... [2018-11-10 07:38:42,058 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,060 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,061 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,061 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,061 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,061 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,061 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,061 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,062 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,062 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,062 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,062 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,062 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,062 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,063 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,063 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,063 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,063 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,063 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,063 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,064 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,064 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,064 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,064 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:38:42,070 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,070 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,070 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,070 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,070 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,070 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,071 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,071 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,071 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,071 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,071 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,071 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 915131655bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,072 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,072 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 915131655bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,072 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,072 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,072 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 639499465bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,073 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,073 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 639499465bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,073 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,073 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,073 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,074 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,074 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 3383626022bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,074 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 3383626022bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,074 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,074 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,074 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,074 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,075 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,075 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,075 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,075 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,075 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,075 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,076 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,076 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,076 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,076 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,076 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,076 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,077 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,077 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,077 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,077 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,077 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,077 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,078 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,078 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,078 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-11-10 07:38:42,104 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_326ac91b-257c-475a-b812-7ebc13c69192/bin-2019/utaipan/witness.graphml [2018-11-10 07:38:42,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:38:42,105 INFO L168 Benchmark]: Toolchain (without parser) took 60374.71 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.7 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 148.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:38:42,105 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:38:42,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.86 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 919.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:38:42,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 919.7 MB in the beginning and 1.1 GB in the end (delta: -220.7 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:38:42,106 INFO L168 Benchmark]: Boogie Preprocessor took 21.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:38:42,106 INFO L168 Benchmark]: RCFGBuilder took 236.45 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: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:38:42,106 INFO L168 Benchmark]: TraceAbstraction took 59676.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -25.5 MB). Peak memory consumption was 139.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:38:42,106 INFO L168 Benchmark]: Witness Printer took 48.97 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:38:42,108 INFO L336 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 321.86 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 919.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 919.7 MB in the beginning and 1.1 GB in the end (delta: -220.7 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 236.45 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: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 59676.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -25.5 MB). Peak memory consumption was 139.1 MB. Max. memory is 11.5 GB. * Witness Printer took 48.97 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 915131655bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 915131655bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 639499465bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 639499465bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 3383626022bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 3383626022bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 915131655bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 915131655bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 639499465bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 639499465bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 3383626022bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 3383626022bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L623] mlist *head; VAL [\old(head)=null, \old(head)=null, head={0:0}] [L644] int i; [L645] mlist *mylist, *temp; VAL [\old(head)=null, \old(head)=null, head={0:0}] [L646] CALL insert_list(mylist,2) VAL [\old(head)=null, \old(head)=null, head={0:0}] [L632] EXPR, FCALL malloc(sizeof(mlist)) [L632] l = (mlist*)malloc(sizeof(mlist)) [L633] CALL l->key = k [L633] RET l->key = k [L634] COND TRUE head==((void *)0) [L635] CALL l->next = ((void *)0) [L635] RET l->next = ((void *)0) [L640] head = l [L641] RET return 0; VAL [\old(head)=null, \old(head)=null, head={915131655:0}] [L646] insert_list(mylist,2) VAL [\old(head)=null, \old(head)=null, head={915131655:0}] [L647] CALL insert_list(mylist,5) VAL [\old(head)=null, \old(head)=null, head={915131655:0}] [L632] EXPR, FCALL malloc(sizeof(mlist)) [L632] l = (mlist*)malloc(sizeof(mlist)) [L633] CALL l->key = k [L633] RET l->key = k [L634] COND FALSE !(head==((void *)0)) [L637] CALL l->key = k [L637] RET l->key = k [L638] CALL l->next = head [L638] RET l->next = head [L640] head = l [L641] RET return 0; VAL [\old(head)=null, \old(head)=null, head={639499465:0}] [L647] insert_list(mylist,5) VAL [\old(head)=null, \old(head)=null, head={639499465:0}] [L648] CALL insert_list(mylist,1) VAL [\old(head)=null, \old(head)=null, head={639499465:0}] [L632] EXPR, FCALL malloc(sizeof(mlist)) [L632] l = (mlist*)malloc(sizeof(mlist)) [L633] CALL l->key = k [L633] RET l->key = k [L634] COND FALSE !(head==((void *)0)) [L637] CALL l->key = k [L637] RET l->key = k [L638] CALL l->next = head [L638] RET l->next = head [L640] head = l [L641] RET return 0; VAL [\old(head)=null, \old(head)=null, head={-911341274:0}] [L648] insert_list(mylist,1) VAL [\old(head)=null, \old(head)=null, head={-911341274:0}] [L649] CALL insert_list(mylist,3) VAL [\old(head)=null, \old(head)=null, head={-911341274:0}] [L632] EXPR, FCALL malloc(sizeof(mlist)) [L632] l = (mlist*)malloc(sizeof(mlist)) [L633] CALL l->key = k [L633] RET l->key = k [L634] COND FALSE !(head==((void *)0)) [L637] CALL l->key = k [L637] RET l->key = k [L638] CALL l->next = head [L638] RET l->next = head [L640] head = l [L641] RET return 0; VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L649] insert_list(mylist,3) VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L650] CALL, EXPR search_list(head,2) VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L625] l = head VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L626] l!=((void *)0) && l->key!=k [L626] CALL, EXPR l->key [L626] RET, EXPR l->key [L626] l!=((void *)0) && l->key!=k VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L626] COND TRUE l!=((void *)0) && l->key!=k [L627] CALL, EXPR l->next [L627] RET, EXPR l->next [L627] l = l->next [L626] l!=((void *)0) && l->key!=k [L626] CALL, EXPR l->key [L626] RET, EXPR l->key [L626] l!=((void *)0) && l->key!=k VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L626] COND TRUE l!=((void *)0) && l->key!=k [L627] CALL, EXPR l->next [L627] RET, EXPR l->next [L627] l = l->next [L626] l!=((void *)0) && l->key!=k [L626] CALL, EXPR l->key [L626] RET, EXPR l->key [L626] l!=((void *)0) && l->key!=k VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L626] COND TRUE l!=((void *)0) && l->key!=k [L627] CALL, EXPR l->next [L627] RET, EXPR l->next [L627] l = l->next [L626] l!=((void *)0) && l->key!=k [L626] CALL, EXPR l->key [L626] RET, EXPR l->key [L626] l!=((void *)0) && l->key!=k VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L626] COND FALSE !(l!=((void *)0) && l->key!=k) [L629] RET return l; VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L650] EXPR search_list(head,2) VAL [\old(head)=null, \old(head)=null, head={639235277:0}] [L650] temp = search_list(head,2) [L651] CALL, EXPR temp->key [L651] RET, EXPR temp->key [L651] CALL __VERIFIER_assert(temp->key==1) VAL [\old(cond)=0, \old(head)=null, \old(head)=null, head={639235277:0}] [L4] COND TRUE !(cond) VAL [\old(cond)=0, \old(head)=null, \old(head)=null, cond=0, head={639235277:0}] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(head)=null, \old(head)=null, cond=0, head={639235277:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 43 locations, 1 error locations. UNSAFE Result, 59.6s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 12.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 258 SDtfs, 478 SDslu, 816 SDs, 0 SdLazy, 2602 SolverSat, 267 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1080 GetRequests, 863 SyntacticMatches, 11 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1596 ImplicationChecksByTransitivity, 39.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 50 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 44.0s InterpolantComputationTime, 729 NumberOfCodeBlocks, 729 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 852 ConstructedInterpolants, 24 QuantifiedInterpolants, 583735 SizeOfPredicates, 418 NumberOfNonLiveVariables, 4439 ConjunctsInSsa, 540 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 394/582 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...