./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 0.1.23-635dfa2 [2018-12-09 16:09:30,585 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:09:30,586 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:09:30,594 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:09:30,594 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:09:30,595 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:09:30,595 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:09:30,597 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:09:30,598 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:09:30,598 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:09:30,599 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:09:30,599 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:09:30,600 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:09:30,601 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:09:30,601 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:09:30,602 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:09:30,603 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:09:30,604 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:09:30,605 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:09:30,606 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:09:30,607 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:09:30,608 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:09:30,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:09:30,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:09:30,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:09:30,611 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:09:30,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:09:30,612 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:09:30,613 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:09:30,613 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:09:30,614 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:09:30,614 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:09:30,614 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:09:30,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:09:30,615 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:09:30,616 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:09:30,616 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 16:09:30,626 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:09:30,626 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:09:30,627 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:09:30,627 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 16:09:30,627 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 16:09:30,627 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 16:09:30,627 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 16:09:30,627 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 16:09:30,627 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 16:09:30,627 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 16:09:30,627 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 16:09:30,628 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 16:09:30,628 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 16:09:30,628 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:09:30,628 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:09:30,628 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:09:30,629 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:09:30,629 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:09:30,629 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:09:30,629 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:09:30,629 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:09:30,629 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:09:30,629 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:09:30,630 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:09:30,630 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:09:30,630 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 16:09:30,630 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:09:30,630 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 16:09:30,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:09:30,630 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:09:30,630 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:09:30,630 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:09:30,630 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 16:09:30,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:09:30,631 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 16:09:30,631 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 16:09:30,631 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_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:09:30,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:09:30,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:09:30,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:09:30,661 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:09:30,662 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:09:30,662 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/../../sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i [2018-12-09 16:09:30,703 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data/efd538dcb/23a824d496b34b76b4cfc581416624b1/FLAGf6bda9e98 [2018-12-09 16:09:31,019 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:09:31,019 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i [2018-12-09 16:09:31,027 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data/efd538dcb/23a824d496b34b76b4cfc581416624b1/FLAGf6bda9e98 [2018-12-09 16:09:31,035 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data/efd538dcb/23a824d496b34b76b4cfc581416624b1 [2018-12-09 16:09:31,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:09:31,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:09:31,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:09:31,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:09:31,040 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:09:31,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159e01e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31, skipping insertion in model container [2018-12-09 16:09:31,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:09:31,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:09:31,206 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:09:31,212 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:09:31,269 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:09:31,290 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:09:31,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31 WrapperNode [2018-12-09 16:09:31,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:09:31,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:09:31,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:09:31,291 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:09:31,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:09:31,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:09:31,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:09:31,309 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:09:31,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... [2018-12-09 16:09:31,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:09:31,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:09:31,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:09:31,326 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:09:31,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:09:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2018-12-09 16:09:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2018-12-09 16:09:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 16:09:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 16:09:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 16:09:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2018-12-09 16:09:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 16:09:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:09:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:09:31,491 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:09:31,491 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 16:09:31,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:09:31 BoogieIcfgContainer [2018-12-09 16:09:31,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:09:31,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 16:09:31,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 16:09:31,494 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 16:09:31,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:09:31" (1/3) ... [2018-12-09 16:09:31,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2668997a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:09:31, skipping insertion in model container [2018-12-09 16:09:31,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:31" (2/3) ... [2018-12-09 16:09:31,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2668997a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:09:31, skipping insertion in model container [2018-12-09 16:09:31,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:09:31" (3/3) ... [2018-12-09 16:09:31,496 INFO L112 eAbstractionObserver]: Analyzing ICFG list_search_false-unreach-call_false-valid-memcleanup.i [2018-12-09 16:09:31,501 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 16:09:31,505 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 16:09:31,514 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 16:09:31,530 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 16:09:31,531 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 16:09:31,531 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 16:09:31,531 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 16:09:31,531 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 16:09:31,531 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 16:09:31,531 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 16:09:31,531 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 16:09:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-09 16:09:31,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-09 16:09:31,546 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:31,547 INFO L402 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] [2018-12-09 16:09:31,548 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:31,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:31,551 INFO L82 PathProgramCache]: Analyzing trace with hash -658334123, now seen corresponding path program 1 times [2018-12-09 16:09:31,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:09:31,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:31,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:31,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:31,580 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:09:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:09:31,706 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:09:31,706 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 16:09:31,706 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-12-09 16:09:31,708 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [9], [10], [14], [16], [18], [20], [22], [24], [40], [43], [45], [51], [69], [71], [72], [73], [74], [75], [77], [78], [79], [80], [81], [82], [83], [84], [85], [86], [87] [2018-12-09 16:09:31,729 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 16:09:31,730 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 16:09:31,842 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 16:09:31,843 INFO L272 AbstractInterpreter]: Visited 25 different actions 37 times. Never merged. Never widened. Performed 348 root evaluator evaluations with a maximum evaluation depth of 3. Performed 348 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 30 variables. [2018-12-09 16:09:31,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:31,853 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 16:09:31,919 INFO L227 lantSequenceWeakener]: Weakened 35 states. On average, predicates are now at 86.51% of their original sizes. [2018-12-09 16:09:31,920 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 16:09:31,993 INFO L418 sIntCurrentIteration]: We unified 44 AI predicates to 44 [2018-12-09 16:09:31,993 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 16:09:31,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 16:09:31,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-12-09 16:09:31,994 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:09:31,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-09 16:09:31,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-09 16:09:32,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-12-09 16:09:32,001 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 13 states. [2018-12-09 16:09:32,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:09:32,525 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2018-12-09 16:09:32,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-09 16:09:32,526 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2018-12-09 16:09:32,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:09:32,531 INFO L225 Difference]: With dead ends: 93 [2018-12-09 16:09:32,531 INFO L226 Difference]: Without dead ends: 51 [2018-12-09 16:09:32,533 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2018-12-09 16:09:32,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-09 16:09:32,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2018-12-09 16:09:32,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-09 16:09:32,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2018-12-09 16:09:32,557 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 45 [2018-12-09 16:09:32,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:09:32,557 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2018-12-09 16:09:32,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-09 16:09:32,558 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2018-12-09 16:09:32,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 16:09:32,558 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:32,558 INFO L402 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] [2018-12-09 16:09:32,559 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:32,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:32,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1948127278, now seen corresponding path program 1 times [2018-12-09 16:09:32,559 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:09:32,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:32,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:32,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:32,560 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:09:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:32,629 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:09:32,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:09:32,629 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 16:09:32,629 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 48 with the following transitions: [2018-12-09 16:09:32,630 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [9], [10], [14], [16], [18], [20], [22], [24], [40], [43], [45], [51], [56], [59], [65], [71], [72], [73], [74], [75], [77], [78], [79], [80], [81], [82], [83], [84], [85], [86], [87] [2018-12-09 16:09:32,632 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 16:09:32,632 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 16:09:32,672 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 16:09:32,672 INFO L272 AbstractInterpreter]: Visited 35 different actions 47 times. Never merged. Never widened. Performed 427 root evaluator evaluations with a maximum evaluation depth of 4. Performed 427 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 30 variables. [2018-12-09 16:09:32,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:32,678 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 16:09:32,678 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:09:32,678 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:09:32,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:32,687 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 16:09:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:32,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:09:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 16:09:32,754 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:09:32,805 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:09:32,820 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 16:09:32,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2018-12-09 16:09:32,820 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 16:09:32,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:09:32,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:09:32,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 16:09:32,822 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 6 states. [2018-12-09 16:09:32,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:09:32,905 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2018-12-09 16:09:32,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 16:09:32,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-12-09 16:09:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:09:32,906 INFO L225 Difference]: With dead ends: 80 [2018-12-09 16:09:32,906 INFO L226 Difference]: Without dead ends: 48 [2018-12-09 16:09:32,907 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 91 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-12-09 16:09:32,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-12-09 16:09:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-12-09 16:09:32,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-09 16:09:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2018-12-09 16:09:32,913 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 47 [2018-12-09 16:09:32,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:09:32,914 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2018-12-09 16:09:32,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:09:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2018-12-09 16:09:32,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 16:09:32,915 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:32,915 INFO L402 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] [2018-12-09 16:09:32,915 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:32,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:32,916 INFO L82 PathProgramCache]: Analyzing trace with hash 369290796, now seen corresponding path program 1 times [2018-12-09 16:09:32,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:09:32,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:32,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:32,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:32,917 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:09:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 16:09:33,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:09:33,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 16:09:33,066 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:09:33,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 16:09:33,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 16:09:33,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 16:09:33,067 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 10 states. [2018-12-09 16:09:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:09:33,273 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-12-09 16:09:33,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 16:09:33,273 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 47 [2018-12-09 16:09:33,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:09:33,275 INFO L225 Difference]: With dead ends: 64 [2018-12-09 16:09:33,275 INFO L226 Difference]: Without dead ends: 55 [2018-12-09 16:09:33,275 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2018-12-09 16:09:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-09 16:09:33,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2018-12-09 16:09:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-09 16:09:33,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2018-12-09 16:09:33,279 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 47 [2018-12-09 16:09:33,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:09:33,279 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2018-12-09 16:09:33,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 16:09:33,280 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2018-12-09 16:09:33,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 16:09:33,280 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:33,280 INFO L402 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] [2018-12-09 16:09:33,280 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:33,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:33,281 INFO L82 PathProgramCache]: Analyzing trace with hash -23736214, now seen corresponding path program 1 times [2018-12-09 16:09:33,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:09:33,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:33,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:33,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:33,281 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:09:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:33,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 16:09:33,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:09:33,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 16:09:33,327 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:09:33,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 16:09:33,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 16:09:33,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 16:09:33,327 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 7 states. [2018-12-09 16:09:33,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:09:33,403 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2018-12-09 16:09:33,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:09:33,403 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2018-12-09 16:09:33,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:09:33,404 INFO L225 Difference]: With dead ends: 63 [2018-12-09 16:09:33,404 INFO L226 Difference]: Without dead ends: 51 [2018-12-09 16:09:33,404 INFO L631 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 [2018-12-09 16:09:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-09 16:09:33,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-12-09 16:09:33,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-09 16:09:33,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2018-12-09 16:09:33,408 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 47 [2018-12-09 16:09:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:09:33,408 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2018-12-09 16:09:33,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 16:09:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2018-12-09 16:09:33,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-09 16:09:33,409 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:33,409 INFO L402 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] [2018-12-09 16:09:33,409 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:33,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:33,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1979191460, now seen corresponding path program 1 times [2018-12-09 16:09:33,409 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:09:33,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:33,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:33,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:09:33,410 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:09:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 16:09:33,751 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:09:33,751 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 16:09:33,751 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 51 with the following transitions: [2018-12-09 16:09:33,751 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [7], [9], [10], [14], [16], [18], [20], [22], [24], [40], [43], [45], [51], [56], [59], [65], [67], [71], [72], [73], [74], [75], [77], [78], [79], [80], [81], [82], [83], [84], [85], [86], [87] [2018-12-09 16:09:33,752 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 16:09:33,752 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 16:09:33,803 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 16:09:33,803 INFO L272 AbstractInterpreter]: Visited 37 different actions 55 times. Merged at 1 different actions 3 times. Never widened. Performed 528 root evaluator evaluations with a maximum evaluation depth of 4. Performed 528 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 4 fixpoints after 2 different actions. Largest state had 30 variables. [2018-12-09 16:09:33,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:33,806 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 16:09:33,806 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:09:33,806 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:09:33,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:33,814 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 16:09:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:33,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:09:33,869 INFO L478 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 [2018-12-09 16:09:33,870 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,874 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-09 16:09:33,885 INFO L478 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 22 treesize of output 19 [2018-12-09 16:09:33,887 INFO L478 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 19 treesize of output 22 [2018-12-09 16:09:33,893 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:33,894 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:09:33,895 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,897 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,898 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,902 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,903 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:31, output treesize:16 [2018-12-09 16:09:33,955 INFO L478 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 [2018-12-09 16:09:33,957 INFO L478 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 [2018-12-09 16:09:33,957 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,959 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,973 INFO L478 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 [2018-12-09 16:09:33,975 INFO L478 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 [2018-12-09 16:09:33,975 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,976 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:33,982 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:33,983 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:57, output treesize:49 [2018-12-09 16:09:34,840 WARN L180 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-12-09 16:09:35,401 WARN L180 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-12-09 16:09:35,407 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:35,408 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:35,408 INFO L478 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 [2018-12-09 16:09:35,409 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:35,418 INFO L478 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 36 treesize of output 43 [2018-12-09 16:09:35,420 INFO L478 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 19 treesize of output 22 [2018-12-09 16:09:35,422 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:35,423 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:09:35,424 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:35,429 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:35,432 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:35,437 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. [2018-12-09 16:09:35,437 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:64, output treesize:36 [2018-12-09 16:09:35,644 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-12-09 16:09:35,644 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:35,646 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:35,646 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:56, output treesize:1 [2018-12-09 16:09:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:09:35,652 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:09:35,952 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:35,954 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:35,959 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:35,959 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:25 [2018-12-09 16:09:36,093 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:36,096 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:36,301 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 16:09:36,302 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:214) 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:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) 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:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) 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) [2018-12-09 16:09:36,306 INFO L168 Benchmark]: Toolchain (without parser) took 5269.13 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 233.8 MB). Free memory was 952.4 MB in the beginning and 830.7 MB in the end (delta: 121.7 MB). Peak memory consumption was 355.5 MB. Max. memory is 11.5 GB. [2018-12-09 16:09:36,307 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:09:36,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-12-09 16:09:36,309 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.18 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. [2018-12-09 16:09:36,309 INFO L168 Benchmark]: Boogie Preprocessor took 16.74 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. [2018-12-09 16:09:36,309 INFO L168 Benchmark]: RCFGBuilder took 166.40 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-12-09 16:09:36,310 INFO L168 Benchmark]: TraceAbstraction took 4813.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 830.7 MB in the end (delta: 291.9 MB). Peak memory consumption was 362.1 MB. Max. memory is 11.5 GB. [2018-12-09 16:09:36,313 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.18 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. * Boogie Preprocessor took 16.74 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 166.40 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4813.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 830.7 MB in the end (delta: 291.9 MB). Peak memory consumption was 362.1 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 0.1.23-635dfa2 [2018-12-09 16:09:37,644 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:09:37,646 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:09:37,655 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:09:37,655 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:09:37,656 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:09:37,657 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:09:37,658 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:09:37,659 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:09:37,659 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:09:37,660 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:09:37,660 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:09:37,661 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:09:37,662 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:09:37,662 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:09:37,663 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:09:37,664 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:09:37,665 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:09:37,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:09:37,667 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:09:37,668 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:09:37,669 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:09:37,670 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:09:37,671 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:09:37,671 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:09:37,671 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:09:37,672 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:09:37,673 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:09:37,673 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:09:37,674 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:09:37,674 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:09:37,674 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:09:37,675 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:09:37,675 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:09:37,675 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:09:37,676 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:09:37,676 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 16:09:37,686 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:09:37,687 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:09:37,687 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:09:37,687 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 16:09:37,688 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 16:09:37,688 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 16:09:37,688 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 16:09:37,688 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 16:09:37,688 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 16:09:37,688 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 16:09:37,689 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:09:37,689 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:09:37,689 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:09:37,689 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:09:37,689 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:09:37,689 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:09:37,690 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:09:37,690 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 16:09:37,690 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 16:09:37,690 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:09:37,690 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:09:37,690 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 16:09:37,690 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:09:37,691 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:09:37,691 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 16:09:37,691 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:09:37,691 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 16:09:37,691 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:09:37,691 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:09:37,691 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:09:37,691 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:09:37,692 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 16:09:37,692 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:09:37,692 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 16:09:37,692 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 16:09:37,692 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_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:09:37,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:09:37,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:09:37,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:09:37,725 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:09:37,726 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:09:37,726 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/../../sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i [2018-12-09 16:09:37,760 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data/f7e42efea/bf5be4be7afa4e728801c541dcb18a54/FLAG477d4e6b7 [2018-12-09 16:09:38,197 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:09:38,197 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/sv-benchmarks/c/list-properties/list_search_false-unreach-call_false-valid-memcleanup.i [2018-12-09 16:09:38,203 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data/f7e42efea/bf5be4be7afa4e728801c541dcb18a54/FLAG477d4e6b7 [2018-12-09 16:09:38,211 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/data/f7e42efea/bf5be4be7afa4e728801c541dcb18a54 [2018-12-09 16:09:38,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:09:38,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:09:38,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:09:38,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:09:38,216 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:09:38,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f01457b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38, skipping insertion in model container [2018-12-09 16:09:38,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:09:38,242 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:09:38,392 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:09:38,400 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:09:38,426 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:09:38,482 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:09:38,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38 WrapperNode [2018-12-09 16:09:38,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:09:38,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:09:38,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:09:38,483 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:09:38,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:09:38,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:09:38,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:09:38,501 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:09:38,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... [2018-12-09 16:09:38,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:09:38,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:09:38,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:09:38,520 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:09:38,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:09:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2018-12-09 16:09:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2018-12-09 16:09:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 16:09:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 16:09:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 16:09:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 16:09:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 16:09:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 16:09:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 16:09:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 16:09:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 16:09:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-09 16:09:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2018-12-09 16:09:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2018-12-09 16:09:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 16:09:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 16:09:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:09:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:09:38,727 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:09:38,727 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 16:09:38,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:09:38 BoogieIcfgContainer [2018-12-09 16:09:38,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:09:38,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 16:09:38,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 16:09:38,730 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 16:09:38,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:09:38" (1/3) ... [2018-12-09 16:09:38,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4ad9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:09:38, skipping insertion in model container [2018-12-09 16:09:38,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:09:38" (2/3) ... [2018-12-09 16:09:38,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4ad9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:09:38, skipping insertion in model container [2018-12-09 16:09:38,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:09:38" (3/3) ... [2018-12-09 16:09:38,732 INFO L112 eAbstractionObserver]: Analyzing ICFG list_search_false-unreach-call_false-valid-memcleanup.i [2018-12-09 16:09:38,738 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 16:09:38,743 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 16:09:38,751 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 16:09:38,767 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 16:09:38,768 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 16:09:38,768 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 16:09:38,768 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 16:09:38,768 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 16:09:38,768 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 16:09:38,768 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 16:09:38,768 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 16:09:38,768 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 16:09:38,777 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-09 16:09:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-09 16:09:38,781 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:38,781 INFO L402 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] [2018-12-09 16:09:38,783 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:38,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:38,786 INFO L82 PathProgramCache]: Analyzing trace with hash -658334123, now seen corresponding path program 1 times [2018-12-09 16:09:38,789 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 16:09:38,789 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 16:09:38,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:38,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:09:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-09 16:09:38,919 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:09:38,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:09:38,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 16:09:38,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 16:09:38,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 16:09:38,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 16:09:38,934 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-12-09 16:09:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:09:38,950 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2018-12-09 16:09:38,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 16:09:38,951 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 45 [2018-12-09 16:09:38,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:09:38,957 INFO L225 Difference]: With dead ends: 58 [2018-12-09 16:09:38,957 INFO L226 Difference]: Without dead ends: 33 [2018-12-09 16:09:38,959 INFO L631 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 [2018-12-09 16:09:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-09 16:09:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-09 16:09:38,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-09 16:09:38,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-12-09 16:09:38,986 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 45 [2018-12-09 16:09:38,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:09:38,987 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-12-09 16:09:38,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 16:09:38,988 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-12-09 16:09:38,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 16:09:38,990 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:38,990 INFO L402 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] [2018-12-09 16:09:38,990 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:38,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:38,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1948127278, now seen corresponding path program 1 times [2018-12-09 16:09:38,991 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 16:09:38,991 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 16:09:39,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:39,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:09:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 16:09:39,108 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:09:39,163 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:09:39,164 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:09:39,164 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:09:39,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:39,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:09:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 16:09:39,229 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:09:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:09:39,307 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-09 16:09:39,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 7 [2018-12-09 16:09:39,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 16:09:39,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 16:09:39,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 16:09:39,308 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-12-09 16:09:39,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:09:39,566 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2018-12-09 16:09:39,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 16:09:39,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2018-12-09 16:09:39,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:09:39,568 INFO L225 Difference]: With dead ends: 73 [2018-12-09 16:09:39,568 INFO L226 Difference]: Without dead ends: 49 [2018-12-09 16:09:39,569 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-12-09 16:09:39,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-09 16:09:39,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2018-12-09 16:09:39,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-09 16:09:39,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2018-12-09 16:09:39,577 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 47 [2018-12-09 16:09:39,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:09:39,578 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2018-12-09 16:09:39,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 16:09:39,578 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2018-12-09 16:09:39,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 16:09:39,579 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:39,579 INFO L402 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] [2018-12-09 16:09:39,579 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:39,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:39,580 INFO L82 PathProgramCache]: Analyzing trace with hash 369290796, now seen corresponding path program 1 times [2018-12-09 16:09:39,580 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 16:09:39,580 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 16:09:39,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:39,698 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:09:39,725 INFO L478 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 22 treesize of output 19 [2018-12-09 16:09:39,728 INFO L478 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 19 treesize of output 22 [2018-12-09 16:09:39,732 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:39,735 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:09:39,736 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:39,740 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:39,742 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:39,746 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:39,747 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:26, output treesize:11 [2018-12-09 16:09:39,850 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 16:09:39,851 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:09:39,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:09:39,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 16:09:39,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 16:09:39,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 16:09:39,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-09 16:09:39,853 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 9 states. [2018-12-09 16:09:40,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:09:40,126 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-12-09 16:09:40,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:09:40,126 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-12-09 16:09:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:09:40,128 INFO L225 Difference]: With dead ends: 54 [2018-12-09 16:09:40,128 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 16:09:40,128 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-12-09 16:09:40,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 16:09:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-12-09 16:09:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 16:09:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2018-12-09 16:09:40,133 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 47 [2018-12-09 16:09:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:09:40,133 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-12-09 16:09:40,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 16:09:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2018-12-09 16:09:40,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 16:09:40,134 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:40,134 INFO L402 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] [2018-12-09 16:09:40,134 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:40,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:40,135 INFO L82 PathProgramCache]: Analyzing trace with hash -23736214, now seen corresponding path program 1 times [2018-12-09 16:09:40,135 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 16:09:40,135 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 16:09:40,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:40,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:09:40,219 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 16:09:40,220 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 16:09:40,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:09:40,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:09:40,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:09:40,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:09:40,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:09:40,221 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 6 states. [2018-12-09 16:09:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:09:40,345 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-12-09 16:09:40,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 16:09:40,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-12-09 16:09:40,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:09:40,346 INFO L225 Difference]: With dead ends: 54 [2018-12-09 16:09:40,346 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 16:09:40,346 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:09:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 16:09:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2018-12-09 16:09:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 16:09:40,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2018-12-09 16:09:40,350 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 47 [2018-12-09 16:09:40,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:09:40,350 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-12-09 16:09:40,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:09:40,351 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2018-12-09 16:09:40,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-09 16:09:40,351 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:09:40,351 INFO L402 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] [2018-12-09 16:09:40,351 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:09:40,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:09:40,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1979191460, now seen corresponding path program 1 times [2018-12-09 16:09:40,352 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 16:09:40,352 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 16:09:40,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:40,487 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:09:40,492 INFO L478 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 [2018-12-09 16:09:40,492 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,498 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-09 16:09:40,511 INFO L478 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 22 treesize of output 19 [2018-12-09 16:09:40,514 INFO L478 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 19 treesize of output 22 [2018-12-09 16:09:40,518 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:40,521 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:09:40,522 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,526 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,528 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,536 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,536 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:33, output treesize:18 [2018-12-09 16:09:40,641 INFO L478 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 [2018-12-09 16:09:40,645 INFO L478 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 [2018-12-09 16:09:40,646 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,652 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,694 INFO L478 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 [2018-12-09 16:09:40,698 INFO L478 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 [2018-12-09 16:09:40,698 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,702 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:40,727 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:40,727 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:57, output treesize:49 [2018-12-09 16:09:42,799 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 32 [2018-12-09 16:09:44,860 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 32 [2018-12-09 16:09:44,871 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:44,873 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:44,873 INFO L478 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 [2018-12-09 16:09:44,874 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:44,907 INFO L478 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 38 treesize of output 45 [2018-12-09 16:09:44,910 INFO L478 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 19 treesize of output 22 [2018-12-09 16:09:44,914 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:44,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:09:44,917 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:44,921 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:44,927 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:44,939 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. [2018-12-09 16:09:44,939 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:68, output treesize:38 [2018-12-09 16:09:45,291 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-12-09 16:09:45,291 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:45,293 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:45,293 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:51, output treesize:1 [2018-12-09 16:09:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:09:45,299 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:09:46,038 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-12-09 16:09:46,292 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-12-09 16:09:46,432 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-12-09 16:09:46,438 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:46,444 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:46,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:46,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:28 [2018-12-09 16:09:48,550 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:09:48,550 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:09:48,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:09:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:09:48,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:09:48,598 INFO L478 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 [2018-12-09 16:09:48,598 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,604 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-09 16:09:48,610 INFO L478 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 22 treesize of output 19 [2018-12-09 16:09:48,612 INFO L478 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 19 treesize of output 22 [2018-12-09 16:09:48,616 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:48,619 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:09:48,619 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,623 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,624 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,630 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,630 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:33, output treesize:18 [2018-12-09 16:09:48,649 INFO L478 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 [2018-12-09 16:09:48,653 INFO L478 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 [2018-12-09 16:09:48,653 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,703 INFO L478 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 [2018-12-09 16:09:48,707 INFO L478 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 [2018-12-09 16:09:48,707 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,712 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:48,734 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:57, output treesize:49 [2018-12-09 16:09:48,745 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:48,746 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:48,747 INFO L478 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 [2018-12-09 16:09:48,747 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,780 INFO L478 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 42 treesize of output 49 [2018-12-09 16:09:48,783 INFO L478 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 19 treesize of output 22 [2018-12-09 16:09:48,787 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:09:48,790 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:09:48,790 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,795 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,802 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:48,815 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. [2018-12-09 16:09:48,815 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:70, output treesize:42 [2018-12-09 16:09:49,119 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-12-09 16:09:49,120 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:09:49,121 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:09:49,121 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:58, output treesize:1 [2018-12-09 16:09:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:09:49,126 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:09:49,519 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-12-09 16:09:49,771 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-12-09 16:09:49,900 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-12-09 16:09:49,904 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:49,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:49,918 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-09 16:09:49,918 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:28 [2018-12-09 16:09:50,004 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 16:09:50,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 19 [2018-12-09 16:09:50,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-09 16:09:50,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-09 16:09:50,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=508, Unknown=1, NotChecked=0, Total=600 [2018-12-09 16:09:50,005 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 19 states. [2018-12-09 16:09:52,356 WARN L180 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 41 [2018-12-09 16:09:56,885 WARN L180 SmtUtils]: Spent 4.15 s on a formula simplification that was a NOOP. DAG size: 66 [2018-12-09 16:09:59,688 WARN L180 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 52 [2018-12-09 16:10:00,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:10:00,600 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-12-09 16:10:00,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-09 16:10:00,601 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 50 [2018-12-09 16:10:00,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:10:00,602 INFO L225 Difference]: With dead ends: 60 [2018-12-09 16:10:00,602 INFO L226 Difference]: Without dead ends: 51 [2018-12-09 16:10:00,603 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=194, Invalid=1137, Unknown=1, NotChecked=0, Total=1332 [2018-12-09 16:10:00,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-09 16:10:00,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2018-12-09 16:10:00,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-09 16:10:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2018-12-09 16:10:00,609 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 50 [2018-12-09 16:10:00,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:10:00,609 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2018-12-09 16:10:00,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-09 16:10:00,609 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2018-12-09 16:10:00,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-09 16:10:00,610 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:10:00,610 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1] [2018-12-09 16:10:00,610 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:10:00,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:10:00,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1922748826, now seen corresponding path program 1 times [2018-12-09 16:10:00,610 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 16:10:00,611 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 16:10:00,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:10:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:10:00,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:10:00,728 INFO L478 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 [2018-12-09 16:10:00,730 INFO L478 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 [2018-12-09 16:10:00,730 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:00,732 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:00,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:00,736 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-12-09 16:10:00,845 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:10:00,845 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:10:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:10:01,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:10:01,212 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:10:01,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:10:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:10:01,245 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:10:01,250 INFO L478 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 [2018-12-09 16:10:01,252 INFO L478 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 [2018-12-09 16:10:01,252 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:01,254 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:01,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:01,260 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-12-09 16:10:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:10:01,263 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:10:01,427 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-09 16:10:01,443 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-09 16:10:01,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12] total 20 [2018-12-09 16:10:01,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-09 16:10:01,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-09 16:10:01,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2018-12-09 16:10:01,444 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand 20 states. [2018-12-09 16:10:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:10:02,631 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2018-12-09 16:10:02,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 16:10:02,632 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 50 [2018-12-09 16:10:02,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:10:02,632 INFO L225 Difference]: With dead ends: 62 [2018-12-09 16:10:02,632 INFO L226 Difference]: Without dead ends: 50 [2018-12-09 16:10:02,633 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2018-12-09 16:10:02,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-09 16:10:02,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2018-12-09 16:10:02,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-09 16:10:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-12-09 16:10:02,637 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 50 [2018-12-09 16:10:02,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:10:02,638 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-12-09 16:10:02,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-09 16:10:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-12-09 16:10:02,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 16:10:02,638 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:10:02,638 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2018-12-09 16:10:02,639 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:10:02,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:10:02,639 INFO L82 PathProgramCache]: Analyzing trace with hash -596828116, now seen corresponding path program 2 times [2018-12-09 16:10:02,639 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 16:10:02,639 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 16:10:02,652 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-09 16:10:02,799 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 16:10:02,799 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 16:10:02,805 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:10:02,808 INFO L478 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 [2018-12-09 16:10:02,808 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:02,814 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:02,814 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-09 16:10:02,828 INFO L478 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 22 treesize of output 19 [2018-12-09 16:10:02,830 INFO L478 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 19 treesize of output 22 [2018-12-09 16:10:02,833 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:02,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:10:02,836 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:02,840 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:02,841 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:02,846 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:02,846 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:33, output treesize:18 [2018-12-09 16:10:02,945 INFO L478 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 [2018-12-09 16:10:02,950 INFO L478 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 [2018-12-09 16:10:02,950 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:02,957 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:03,001 INFO L478 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 [2018-12-09 16:10:03,005 INFO L478 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 [2018-12-09 16:10:03,005 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:03,010 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:03,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:03,038 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-12-09 16:10:05,094 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 36 [2018-12-09 16:10:07,162 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 36 [2018-12-09 16:10:07,169 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:07,170 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:07,171 INFO L478 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 [2018-12-09 16:10:07,171 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:07,212 INFO L478 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 36 treesize of output 43 [2018-12-09 16:10:07,215 INFO L478 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 19 treesize of output 22 [2018-12-09 16:10:07,219 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:07,220 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:10:07,221 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:07,225 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:07,231 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:07,246 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. [2018-12-09 16:10:07,246 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:70, output treesize:53 [2018-12-09 16:10:07,538 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:07,581 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:07,993 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:08,025 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:08,255 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:08,274 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:08,393 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:08,408 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:08,481 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:08,481 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:117, output treesize:63 [2018-12-09 16:10:20,691 WARN L180 SmtUtils]: Spent 6.07 s on a formula simplification that was a NOOP. DAG size: 42 [2018-12-09 16:10:28,918 WARN L180 SmtUtils]: Spent 6.06 s on a formula simplification that was a NOOP. DAG size: 42 [2018-12-09 16:10:28,940 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:28,940 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 16:10:28,941 INFO L478 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 [2018-12-09 16:10:28,941 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,081 INFO L478 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 36 treesize of output 41 [2018-12-09 16:10:29,086 INFO L478 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 19 treesize of output 22 [2018-12-09 16:10:29,092 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:29,096 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:10:29,096 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,106 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,119 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,184 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:29,188 INFO L478 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 46 treesize of output 61 [2018-12-09 16:10:29,195 INFO L478 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 28 treesize of output 27 [2018-12-09 16:10:29,202 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:29,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2018-12-09 16:10:29,206 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,224 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,248 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,310 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:29,322 INFO L478 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 24 treesize of output 31 [2018-12-09 16:10:29,327 INFO L478 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 13 treesize of output 16 [2018-12-09 16:10:29,334 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:29,337 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 16 treesize of output 23 [2018-12-09 16:10:29,337 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,348 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,359 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:29,391 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 8 variables, input treesize:108, output treesize:79 [2018-12-09 16:10:30,340 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-12-09 16:10:30,340 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:30,343 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:30,343 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:116, output treesize:1 [2018-12-09 16:10:30,358 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 16:10:30,358 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:10:30,459 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2018-12-09 16:10:33,036 WARN L180 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 72 [2018-12-09 16:10:33,975 WARN L180 SmtUtils]: Spent 938.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-12-09 16:10:35,912 WARN L180 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 91 [2018-12-09 16:10:37,286 WARN L180 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 79 [2018-12-09 16:10:38,313 WARN L180 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2018-12-09 16:10:38,314 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:38,377 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:38,377 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:38,446 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:38,447 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:38,514 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:38,912 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:38,928 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:39,198 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,236 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,237 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:39,260 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:39,261 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,289 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,524 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,538 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,539 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,574 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,575 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,596 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:39,800 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:39,808 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:39,809 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:39,829 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:39,830 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:39,854 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:40,004 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 5 dim-2 vars, End of recursive call: 12 dim-0 vars, and 3 xjuncts. [2018-12-09 16:10:40,004 INFO L202 ElimStorePlain]: Needed 27 recursive calls to eliminate 7 variables, input treesize:128, output treesize:146 [2018-12-09 16:10:42,731 WARN L180 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 88 DAG size of output: 47 [2018-12-09 16:10:42,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:10:42,734 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:10:42,740 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-09 16:10:42,839 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 16:10:42,839 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 16:10:42,844 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:10:42,848 INFO L478 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 [2018-12-09 16:10:42,848 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,853 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,854 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-09 16:10:42,859 INFO L478 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 22 treesize of output 19 [2018-12-09 16:10:42,862 INFO L478 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 19 treesize of output 22 [2018-12-09 16:10:42,865 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:42,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:10:42,868 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,872 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,873 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,879 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:33, output treesize:18 [2018-12-09 16:10:42,896 INFO L478 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 [2018-12-09 16:10:42,900 INFO L478 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 [2018-12-09 16:10:42,901 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,906 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,955 INFO L478 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 [2018-12-09 16:10:42,958 INFO L478 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 [2018-12-09 16:10:42,958 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,963 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:42,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:42,987 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-12-09 16:10:42,995 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:42,997 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:42,998 INFO L478 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 [2018-12-09 16:10:42,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:43,041 INFO L478 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 42 treesize of output 49 [2018-12-09 16:10:43,044 INFO L478 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 19 treesize of output 22 [2018-12-09 16:10:43,047 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:43,049 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:10:43,049 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:43,054 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:43,060 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:43,075 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. [2018-12-09 16:10:43,075 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:78, output treesize:59 [2018-12-09 16:10:43,115 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:43,154 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:43,581 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:43,626 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:43,956 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:43,981 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:44,137 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:44,151 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:44,243 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:44,243 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:117, output treesize:63 [2018-12-09 16:10:50,397 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:50,398 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 16:10:50,399 INFO L478 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 [2018-12-09 16:10:50,399 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:50,569 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:50,570 INFO L478 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 44 treesize of output 59 [2018-12-09 16:10:50,583 INFO L478 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 28 treesize of output 27 [2018-12-09 16:10:50,594 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:50,600 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2018-12-09 16:10:50,601 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:50,629 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:50,679 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:50,804 INFO L478 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 34 treesize of output 39 [2018-12-09 16:10:50,811 INFO L478 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 19 treesize of output 22 [2018-12-09 16:10:50,819 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:50,823 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 [2018-12-09 16:10:50,823 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:50,838 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:50,858 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:50,918 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:50,930 INFO L478 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 24 treesize of output 31 [2018-12-09 16:10:50,935 INFO L478 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 13 treesize of output 16 [2018-12-09 16:10:50,942 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:10:50,946 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 16 treesize of output 23 [2018-12-09 16:10:50,946 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:50,957 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:50,969 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:51,001 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:51,001 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 8 variables, input treesize:106, output treesize:77 [2018-12-09 16:10:51,602 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-12-09 16:10:51,602 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:51,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:51,604 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:116, output treesize:1 [2018-12-09 16:10:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 16:10:51,618 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:10:51,732 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2018-12-09 16:10:53,742 WARN L180 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 72 [2018-12-09 16:10:54,722 WARN L180 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-12-09 16:10:56,597 WARN L180 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 91 [2018-12-09 16:10:58,043 WARN L180 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 79 [2018-12-09 16:10:59,158 WARN L180 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2018-12-09 16:10:59,158 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:59,178 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:59,411 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:59,456 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:59,457 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:59,507 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:59,508 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:59,557 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:59,843 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-09 16:10:59,864 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:10:59,865 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:59,896 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:59,897 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:10:59,931 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:11:00,161 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:11:00,185 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:11:00,185 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:11:00,198 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:11:00,199 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:11:00,229 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:11:00,422 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-09 16:11:00,446 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:11:00,447 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-12-09 16:11:00,468 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:11:00,469 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-12-09 16:11:00,476 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:11:00,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 5 dim-2 vars, End of recursive call: 12 dim-0 vars, and 3 xjuncts. [2018-12-09 16:11:00,614 INFO L202 ElimStorePlain]: Needed 27 recursive calls to eliminate 7 variables, input treesize:128, output treesize:142 [2018-12-09 16:11:00,869 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 16:11:00,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 25 [2018-12-09 16:11:00,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-12-09 16:11:00,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-12-09 16:11:00,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=875, Unknown=6, NotChecked=0, Total=992 [2018-12-09 16:11:00,870 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 25 states. [2018-12-09 16:11:07,401 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2018-12-09 16:11:21,115 WARN L180 SmtUtils]: Spent 12.22 s on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-12-09 16:11:35,205 WARN L180 SmtUtils]: Spent 12.34 s on a formula simplification. DAG size of input: 98 DAG size of output: 58 [2018-12-09 16:11:47,845 WARN L180 SmtUtils]: Spent 12.17 s on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2018-12-09 16:11:56,085 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2018-12-09 16:12:09,888 WARN L180 SmtUtils]: Spent 12.32 s on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2018-12-09 16:12:16,901 WARN L180 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-12-09 16:12:25,782 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2018-12-09 16:12:26,028 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2018-12-09 16:12:26,313 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2018-12-09 16:12:27,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:12:27,158 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2018-12-09 16:12:27,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-09 16:12:27,158 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 53 [2018-12-09 16:12:27,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:12:27,159 INFO L225 Difference]: With dead ends: 65 [2018-12-09 16:12:27,159 INFO L226 Difference]: Without dead ends: 56 [2018-12-09 16:12:27,159 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 111 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 94.3s TimeCoverageRelationStatistics Valid=255, Invalid=1992, Unknown=9, NotChecked=0, Total=2256 [2018-12-09 16:12:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-12-09 16:12:27,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 47. [2018-12-09 16:12:27,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-09 16:12:27,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2018-12-09 16:12:27,165 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 53 [2018-12-09 16:12:27,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:12:27,166 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-12-09 16:12:27,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-12-09 16:12:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2018-12-09 16:12:27,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 16:12:27,166 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:12:27,166 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2018-12-09 16:12:27,166 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:12:27,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:12:27,167 INFO L82 PathProgramCache]: Analyzing trace with hash -989855126, now seen corresponding path program 2 times [2018-12-09 16:12:27,167 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 16:12:27,167 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 16:12:27,179 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-09 16:12:27,291 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 16:12:27,291 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 16:12:27,295 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:12:27,305 INFO L478 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 [2018-12-09 16:12:27,305 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:27,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:27,310 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-09 16:12:27,322 INFO L478 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 [2018-12-09 16:12:27,323 INFO L478 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 [2018-12-09 16:12:27,324 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:27,325 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:27,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:27,331 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2018-12-09 16:12:27,463 INFO L478 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 [2018-12-09 16:12:27,469 INFO L478 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 [2018-12-09 16:12:27,469 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:27,481 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:27,559 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:27,565 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:27,600 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:27,605 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:27,624 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:27,624 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:65, output treesize:34 [2018-12-09 16:12:29,683 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 26 [2018-12-09 16:12:31,736 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 26 [2018-12-09 16:12:31,743 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:12:31,745 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:12:31,745 INFO L478 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 [2018-12-09 16:12:31,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:31,774 INFO L478 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 33 treesize of output 34 [2018-12-09 16:12:31,776 INFO L478 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 13 treesize of output 16 [2018-12-09 16:12:31,781 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:12:31,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-12-09 16:12:31,783 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:31,791 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:31,798 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:31,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:31,815 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:57, output treesize:45 [2018-12-09 16:12:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 16:12:32,131 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:12:32,801 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-12-09 16:12:32,994 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-12-09 16:12:33,305 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-12-09 16:12:33,576 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-12-09 16:12:33,650 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:33,657 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:33,658 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:33,678 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:33,679 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:33,690 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:33,757 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:33,769 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:33,770 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:33,783 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:33,783 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:33,787 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:33,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-12-09 16:12:33,831 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:57, output treesize:72 [2018-12-09 16:12:41,662 WARN L180 SmtUtils]: Spent 3.55 s on a formula simplification that was a NOOP. DAG size: 47 [2018-12-09 16:12:41,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:12:41,665 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/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 [2018-12-09 16:12:41,670 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-09 16:12:41,761 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 16:12:41,761 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 16:12:41,765 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 16:12:41,768 INFO L478 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 [2018-12-09 16:12:41,769 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:41,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:41,774 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-09 16:12:41,779 INFO L478 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 [2018-12-09 16:12:41,781 INFO L478 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 [2018-12-09 16:12:41,781 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:41,783 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:41,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:41,788 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2018-12-09 16:12:41,816 INFO L478 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 [2018-12-09 16:12:41,822 INFO L478 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 [2018-12-09 16:12:41,822 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:41,834 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:41,904 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:41,911 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:41,944 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:41,949 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:41,967 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:41,967 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:65, output treesize:34 [2018-12-09 16:12:42,010 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:12:42,012 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:12:42,012 INFO L478 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 [2018-12-09 16:12:42,012 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:42,043 INFO L478 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 25 treesize of output 26 [2018-12-09 16:12:42,046 INFO L478 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 13 treesize of output 16 [2018-12-09 16:12:42,049 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 16:12:42,050 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-12-09 16:12:42,051 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:42,057 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:42,065 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:42,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:42,080 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:49, output treesize:37 [2018-12-09 16:12:42,123 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 16:12:42,123 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 16:12:42,453 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-12-09 16:12:42,619 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-12-09 16:12:42,954 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-12-09 16:12:43,203 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-12-09 16:12:43,291 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:43,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:43,305 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:43,316 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-09 16:12:43,316 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:43,323 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:43,391 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:43,400 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:43,401 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:43,414 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:43,414 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-09 16:12:43,420 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 16:12:43,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-12-09 16:12:43,467 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:57, output treesize:72 [2018-12-09 16:12:50,391 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 16:12:50,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2018-12-09 16:12:50,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-09 16:12:50,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-09 16:12:50,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=531, Unknown=1, NotChecked=0, Total=600 [2018-12-09 16:12:50,392 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand 18 states. [2018-12-09 16:12:54,729 WARN L180 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2018-12-09 16:13:03,184 WARN L180 SmtUtils]: Spent 8.18 s on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2018-12-09 16:13:07,317 WARN L180 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2018-12-09 16:13:11,759 WARN L180 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2018-12-09 16:13:19,982 WARN L180 SmtUtils]: Spent 8.17 s on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2018-12-09 16:13:24,527 WARN L180 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2018-12-09 16:13:27,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:13:27,727 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2018-12-09 16:13:27,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-12-09 16:13:27,727 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 53 [2018-12-09 16:13:27,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:13:27,728 INFO L225 Difference]: With dead ends: 64 [2018-12-09 16:13:27,728 INFO L226 Difference]: Without dead ends: 52 [2018-12-09 16:13:27,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 121 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 53.4s TimeCoverageRelationStatistics Valid=317, Invalid=1752, Unknown=1, NotChecked=0, Total=2070 [2018-12-09 16:13:27,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-09 16:13:27,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2018-12-09 16:13:27,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-09 16:13:27,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2018-12-09 16:13:27,734 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 53 [2018-12-09 16:13:27,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:13:27,734 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2018-12-09 16:13:27,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-09 16:13:27,734 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2018-12-09 16:13:27,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-09 16:13:27,734 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:13:27,735 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 16:13:27,735 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:13:27,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:13:27,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1243118940, now seen corresponding path program 3 times [2018-12-09 16:13:27,735 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 16:13:27,735 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 16:13:27,750 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-12-09 16:13:28,067 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-09 16:13:28,067 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2018-12-09 16:13:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:13:28,351 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 16:13:28,372 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,373 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,373 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,373 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,373 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,374 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,374 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,374 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,374 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,374 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,374 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,375 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,375 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,375 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,375 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,375 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1714380678bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,375 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1714380678bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,375 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,376 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,376 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1714380678bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,376 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,376 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1714380678bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,376 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,377 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,377 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,377 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1444790120bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,377 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,377 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1444790120bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,377 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,378 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1444790120bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,378 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1444790120bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,378 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,378 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,378 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,378 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 2690793623bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,378 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,379 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 2690793623bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,379 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,379 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,379 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 2690793623bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,379 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,380 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 2690793623bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,380 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,380 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,380 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,380 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,380 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,380 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,381 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,381 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,381 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,381 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,382 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,382 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,382 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,382 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,382 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,382 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,383 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,383 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,383 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,383 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,383 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,383 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,383 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,383 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,384 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,384 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:13:28 BoogieIcfgContainer [2018-12-09 16:13:28,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 16:13:28,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:13:28,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:13:28,391 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:13:28,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:09:38" (3/4) ... [2018-12-09 16:13:28,394 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 16:13:28,410 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,410 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,410 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,410 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,410 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,411 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,411 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,411 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,411 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,412 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,412 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,412 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,412 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,412 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,413 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,413 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1714380678bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,413 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1714380678bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,413 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,414 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1714380678bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,414 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,414 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1714380678bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,416 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,416 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,416 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,416 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1444790120bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,417 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,417 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1444790120bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,417 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,417 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1444790120bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,417 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,417 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,417 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 1444790120bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,418 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,418 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,418 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 2690793623bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,418 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,418 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 2690793623bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,418 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,418 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 2690793623bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,419 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,419 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 2690793623bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,419 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,419 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,419 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,419 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,419 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,420 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,420 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,420 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,420 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,420 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,420 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,421 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,421 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,421 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,421 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,421 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,421 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,421 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,422 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,422 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,422 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,422 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,422 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,422 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,423 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,423 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,423 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *~mlist~0 [2018-12-09 16:13:28,451 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8acda469-807b-479a-ad5c-78d8578adb4c/bin-2019/utaipan/witness.graphml [2018-12-09 16:13:28,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:13:28,452 INFO L168 Benchmark]: Toolchain (without parser) took 230238.48 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 259.5 MB). Free memory was 939.3 MB in the beginning and 829.8 MB in the end (delta: 109.6 MB). Peak memory consumption was 369.1 MB. Max. memory is 11.5 GB. [2018-12-09 16:13:28,452 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:13:28,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-12-09 16:13:28,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 16:13:28,453 INFO L168 Benchmark]: Boogie Preprocessor took 19.13 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. [2018-12-09 16:13:28,453 INFO L168 Benchmark]: RCFGBuilder took 207.26 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 16:13:28,453 INFO L168 Benchmark]: TraceAbstraction took 229662.86 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 116.4 MB). Free memory was 1.1 GB in the beginning and 838.7 MB in the end (delta: 259.1 MB). Peak memory consumption was 375.5 MB. Max. memory is 11.5 GB. [2018-12-09 16:13:28,453 INFO L168 Benchmark]: Witness Printer took 60.13 ms. Allocated memory is still 1.3 GB. Free memory was 838.7 MB in the beginning and 829.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2018-12-09 16:13:28,455 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.13 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 207.26 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 229662.86 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 116.4 MB). Free memory was 1.1 GB in the beginning and 838.7 MB in the end (delta: 259.1 MB). Peak memory consumption was 375.5 MB. Max. memory is 11.5 GB. * Witness Printer took 60.13 ms. Allocated memory is still 1.3 GB. Free memory was 838.7 MB in the beginning and 829.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. * 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 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 1714380678bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 1714380678bv32 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 1714380678bv32 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 1714380678bv32 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 1444790120bv32 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 1444790120bv32 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 1444790120bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 1444790120bv32 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 2690793623bv32 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 2690793623bv32 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 2690793623bv32 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 2690793623bv32 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 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 1714380678bv32 could not be translated for associated CType *~mlist~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 1714380678bv32 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 1714380678bv32 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 1714380678bv32 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 1444790120bv32 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 1444790120bv32 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 1444790120bv32 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 1444790120bv32 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 2690793623bv32 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 2690793623bv32 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 2690793623bv32 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 2690793623bv32 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 * 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, \old(k)=2, head={0:0}, l={0:0}] [L632] l = (mlist*)malloc(sizeof(mlist)) [L633] l->key = k VAL [\old(head)=null, \old(head)=null, \old(k)=2, head={0:0}, k=2, l={1714380678:0}, l={0:0}, malloc(sizeof(mlist))={1714380678:0}] [L634] COND TRUE head==((void *)0) [L635] l->next = ((void *)0) VAL [\old(head)=null, \old(head)=null, \old(k)=2, head={0:0}, k=2, l={0:0}, l={1714380678:0}, malloc(sizeof(mlist))={1714380678:0}] [L640] head = l [L641] return 0; VAL [\old(head)=null, \old(head)=null, \old(k)=2, \result=0, head={1714380678:0}, k=2, l={1714380678:0}, l={0:0}, malloc(sizeof(mlist))={1714380678:0}] [L646] RET insert_list(mylist,2) VAL [\old(head)=null, \old(head)=null, head={1714380678:0}, insert_list(mylist,2)=0, mylist={0:0}] [L647] CALL insert_list(mylist,5) VAL [\old(head)=null, \old(head)=null, \old(k)=5, head={1714380678:0}, l={0:0}] [L632] l = (mlist*)malloc(sizeof(mlist)) [L633] l->key = k VAL [\old(head)=null, \old(head)=null, \old(k)=5, head={1714380678:0}, k=5, l={1444790120:0}, l={0:0}, malloc(sizeof(mlist))={1444790120:0}] [L634] COND FALSE !(head==((void *)0)) [L637] l->key = k [L638] l->next = head VAL [\old(head)=null, \old(head)=null, \old(k)=5, head={1714380678:0}, k=5, l={1444790120:0}, l={0:0}, malloc(sizeof(mlist))={1444790120:0}] [L640] head = l [L641] return 0; VAL [\old(head)=null, \old(head)=null, \old(k)=5, \result=0, head={1444790120:0}, k=5, l={1444790120:0}, l={0:0}, malloc(sizeof(mlist))={1444790120:0}] [L647] RET insert_list(mylist,5) VAL [\old(head)=null, \old(head)=null, head={1444790120:0}, insert_list(mylist,5)=0, mylist={0:0}] [L648] CALL insert_list(mylist,1) VAL [\old(head)=null, \old(head)=null, \old(k)=1, head={1444790120:0}, l={0:0}] [L632] l = (mlist*)malloc(sizeof(mlist)) [L633] l->key = k VAL [\old(head)=null, \old(head)=null, \old(k)=1, head={1444790120:0}, k=1, l={-1604173673:0}, l={0:0}, malloc(sizeof(mlist))={-1604173673:0}] [L634] COND FALSE !(head==((void *)0)) [L637] l->key = k [L638] l->next = head VAL [\old(head)=null, \old(head)=null, \old(k)=1, head={1444790120:0}, k=1, l={-1604173673:0}, l={0:0}, malloc(sizeof(mlist))={-1604173673:0}] [L640] head = l [L641] return 0; VAL [\old(head)=null, \old(head)=null, \old(k)=1, \result=0, head={-1604173673:0}, k=1, l={-1604173673:0}, l={0:0}, malloc(sizeof(mlist))={-1604173673:0}] [L648] RET insert_list(mylist,1) VAL [\old(head)=null, \old(head)=null, head={-1604173673:0}, insert_list(mylist,1)=0, mylist={0:0}] [L649] CALL insert_list(mylist,3) VAL [\old(head)=null, \old(head)=null, \old(k)=3, head={-1604173673:0}, l={0:0}] [L632] l = (mlist*)malloc(sizeof(mlist)) [L633] l->key = k VAL [\old(head)=null, \old(head)=null, \old(k)=3, head={-1604173673:0}, k=3, l={1444790248:0}, l={0:0}, malloc(sizeof(mlist))={1444790248:0}] [L634] COND FALSE !(head==((void *)0)) [L637] l->key = k [L638] l->next = head VAL [\old(head)=null, \old(head)=null, \old(k)=3, head={-1604173673:0}, k=3, l={1444790248:0}, l={0:0}, malloc(sizeof(mlist))={1444790248:0}] [L640] head = l [L641] return 0; VAL [\old(head)=null, \old(head)=null, \old(k)=3, \result=0, head={1444790248:0}, k=3, l={1444790248:0}, l={0:0}, malloc(sizeof(mlist))={1444790248:0}] [L649] RET insert_list(mylist,3) VAL [\old(head)=null, \old(head)=null, head={1444790248:0}, insert_list(mylist,3)=0, mylist={0:0}] [L650] CALL, EXPR search_list(head,2) VAL [\old(head)=null, \old(head)=null, \old(k)=2, head={1444790248:0}, l={1444790248:0}] [L625] l = head VAL [\old(head)=null, \old(head)=null, \old(k)=2, head={1444790248:0}, k=2, l={1444790248:0}, l={1444790248:0}] [L626] l!=((void *)0) && l->key!=k [L626] EXPR l->key [L626] l!=((void *)0) && l->key!=k VAL [\old(head)=null, \old(head)=null, \old(k)=2, head={1444790248:0}, k=2, l={1444790248:0}, l={1444790248:0}, l!=((void *)0) && l->key!=k=1, l->key=3] [L626] COND TRUE l!=((void *)0) && l->key!=k [L627] EXPR l->next [L627] l = l->next [L626] l!=((void *)0) && l->key!=k [L626] EXPR l->key [L626] l!=((void *)0) && l->key!=k VAL [\old(head)=null, \old(head)=null, \old(k)=2, head={1444790248:0}, k=2, l={-1604173673:0}, l={1444790248:0}, l!=((void *)0) && l->key!=k=1, l->key=1] [L626] COND TRUE l!=((void *)0) && l->key!=k [L627] EXPR l->next [L627] l = l->next [L626] l!=((void *)0) && l->key!=k [L626] EXPR l->key [L626] l!=((void *)0) && l->key!=k VAL [\old(head)=null, \old(head)=null, \old(k)=2, head={1444790248:0}, k=2, l={1444790248:0}, l={1444790120:0}, l!=((void *)0) && l->key!=k=1, l->key=5] [L626] COND TRUE l!=((void *)0) && l->key!=k [L627] EXPR l->next [L627] l = l->next [L626] l!=((void *)0) && l->key!=k [L626] EXPR l->key [L626] l!=((void *)0) && l->key!=k VAL [\old(head)=null, \old(head)=null, \old(k)=2, head={1444790248:0}, k=2, l={1444790248:0}, l={1714380678:0}, l!=((void *)0) && l->key!=k=0, l->key=2] [L626] COND FALSE !(l!=((void *)0) && l->key!=k) [L629] return l; VAL [\old(head)=null, \old(head)=null, \old(k)=2, \result={1714380678:0}, head={1444790248:0}, k=2, l={1444790248:0}, l={1714380678:0}] [L650] RET, EXPR search_list(head,2) VAL [\old(head)=null, \old(head)=null, head={1444790248:0}, mylist={0:0}, search_list(head,2)={1714380678:0}] [L650] temp = search_list(head,2) [L651] EXPR temp->key VAL [\old(head)=null, \old(head)=null, head={1444790248:0}, mylist={0:0}, temp={1714380678:0}, temp->key=2] [L651] CALL __VERIFIER_assert(temp->key==1) VAL [\old(cond)=0, \old(head)=null, \old(head)=null, head={1444790248:0}] [L4] COND TRUE !(cond) VAL [\old(cond)=0, \old(head)=null, \old(head)=null, cond=0, head={1444790248:0}] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(head)=null, \old(head)=null, cond=0, head={1444790248:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 41 locations, 1 error locations. UNSAFE Result, 229.6s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 136.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 233 SDtfs, 412 SDslu, 735 SDs, 0 SdLazy, 2245 SolverSat, 264 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 33.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1032 GetRequests, 830 SyntacticMatches, 13 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 165.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 43 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 91.4s InterpolantComputationTime, 701 NumberOfCodeBlocks, 701 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 822 ConstructedInterpolants, 24 QuantifiedInterpolants, 511480 SizeOfPredicates, 171 NumberOfNonLiveVariables, 2947 ConjunctsInSsa, 360 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 390/564 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...