./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt5.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5843ccaa91f9ed7e681195ce1662e3f8c60b2b4c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:20:55,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:20:55,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:20:55,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:20:55,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:20:55,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:20:55,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:20:55,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:20:55,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:20:55,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:20:55,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:20:55,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:20:55,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:20:55,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:20:55,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:20:55,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:20:55,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:20:55,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:20:55,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:20:55,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:20:55,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:20:55,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:20:55,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:20:55,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:20:55,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:20:55,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:20:55,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:20:55,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:20:55,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:20:55,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:20:55,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:20:55,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:20:55,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:20:55,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:20:55,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:20:55,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:20:55,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:20:55,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:20:55,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:20:55,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:20:55,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:20:55,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:20:55,581 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:20:55,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:20:55,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:20:55,582 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:20:55,582 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:20:55,582 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:20:55,582 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:20:55,583 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:20:55,583 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:20:55,583 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:20:55,583 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:20:55,583 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:20:55,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:20:55,584 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:20:55,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:20:55,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:20:55,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:20:55,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:20:55,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:20:55,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:20:55,585 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:20:55,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:20:55,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:20:55,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:20:55,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:20:55,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:20:55,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:20:55,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:55,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:20:55,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:20:55,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:20:55,587 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:20:55,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:20:55,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:20:55,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:20:55,588 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5843ccaa91f9ed7e681195ce1662e3f8c60b2b4c [2019-10-22 11:20:55,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:20:55,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:20:55,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:20:55,628 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:20:55,629 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:20:55,629 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/../../sv-benchmarks/c/loops-crafted-1/sumt5.c [2019-10-22 11:20:55,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/data/dd709bf0c/10f7b0aee5134100a818d0761260e9a2/FLAG0ddd5fbef [2019-10-22 11:20:56,057 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:20:56,058 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/sv-benchmarks/c/loops-crafted-1/sumt5.c [2019-10-22 11:20:56,062 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/data/dd709bf0c/10f7b0aee5134100a818d0761260e9a2/FLAG0ddd5fbef [2019-10-22 11:20:56,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/data/dd709bf0c/10f7b0aee5134100a818d0761260e9a2 [2019-10-22 11:20:56,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:20:56,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:20:56,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:56,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:20:56,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:20:56,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49518969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56, skipping insertion in model container [2019-10-22 11:20:56,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,478 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:20:56,493 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:20:56,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:56,675 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:20:56,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:56,805 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:20:56,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56 WrapperNode [2019-10-22 11:20:56,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:56,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:56,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:20:56,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:20:56,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:56,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:20:56,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:20:56,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:20:56,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:20:56,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:20:56,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:20:56,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:20:56,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:20:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:20:57,136 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:20:57,136 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 11:20:57,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:57 BoogieIcfgContainer [2019-10-22 11:20:57,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:20:57,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:20:57,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:20:57,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:20:57,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:20:56" (1/3) ... [2019-10-22 11:20:57,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678563bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:57, skipping insertion in model container [2019-10-22 11:20:57,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (2/3) ... [2019-10-22 11:20:57,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678563bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:57, skipping insertion in model container [2019-10-22 11:20:57,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:57" (3/3) ... [2019-10-22 11:20:57,145 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt5.c [2019-10-22 11:20:57,154 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:20:57,160 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:20:57,170 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:20:57,191 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:20:57,192 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:20:57,192 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:20:57,192 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:20:57,193 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:20:57,193 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:20:57,193 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:20:57,193 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:20:57,223 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-22 11:20:57,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:20:57,237 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:57,238 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:57,239 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:57,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:57,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1807766728, now seen corresponding path program 1 times [2019-10-22 11:20:57,274 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:57,274 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022917377] [2019-10-22 11:20:57,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:57,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:57,368 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022917377] [2019-10-22 11:20:57,369 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:57,369 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:57,369 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328930084] [2019-10-22 11:20:57,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:20:57,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:57,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:20:57,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:20:57,386 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-10-22 11:20:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:57,399 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-10-22 11:20:57,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:20:57,400 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-10-22 11:20:57,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:57,410 INFO L225 Difference]: With dead ends: 25 [2019-10-22 11:20:57,410 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 11:20:57,412 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:20:57,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 11:20:57,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-22 11:20:57,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 11:20:57,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-10-22 11:20:57,442 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 7 [2019-10-22 11:20:57,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:57,443 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-10-22 11:20:57,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:20:57,443 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2019-10-22 11:20:57,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:20:57,443 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:57,444 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:57,444 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:57,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:57,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1806992162, now seen corresponding path program 1 times [2019-10-22 11:20:57,444 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:57,445 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66602482] [2019-10-22 11:20:57,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:57,724 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66602482] [2019-10-22 11:20:57,724 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:57,724 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:20:57,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333314202] [2019-10-22 11:20:57,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:57,726 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:57,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:57,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:57,727 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand 5 states. [2019-10-22 11:20:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:57,840 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2019-10-22 11:20:57,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:20:57,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-10-22 11:20:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:57,842 INFO L225 Difference]: With dead ends: 22 [2019-10-22 11:20:57,842 INFO L226 Difference]: Without dead ends: 18 [2019-10-22 11:20:57,843 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:20:57,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-22 11:20:57,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2019-10-22 11:20:57,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:20:57,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2019-10-22 11:20:57,846 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 7 [2019-10-22 11:20:57,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:57,846 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-10-22 11:20:57,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:57,847 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2019-10-22 11:20:57,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:20:57,847 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:57,847 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:57,847 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:57,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:57,848 INFO L82 PathProgramCache]: Analyzing trace with hash 92541021, now seen corresponding path program 1 times [2019-10-22 11:20:57,848 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:57,848 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518670655] [2019-10-22 11:20:57,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518670655] [2019-10-22 11:20:58,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801988177] [2019-10-22 11:20:58,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:20:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,158 WARN L254 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-22 11:20:58,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:20:58,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,260 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:20:59,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:20:59,672 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-22 11:20:59,672 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 6] total 14 [2019-10-22 11:20:59,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761172893] [2019-10-22 11:20:59,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:59,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:59,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:20:59,676 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand 5 states. [2019-10-22 11:21:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:06,061 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2019-10-22 11:21:06,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:06,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 11:21:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:06,062 INFO L225 Difference]: With dead ends: 22 [2019-10-22 11:21:06,062 INFO L226 Difference]: Without dead ends: 18 [2019-10-22 11:21:06,063 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2019-10-22 11:21:06,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-22 11:21:06,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-10-22 11:21:06,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-22 11:21:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2019-10-22 11:21:06,066 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 23 transitions. Word has length 10 [2019-10-22 11:21:06,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:06,066 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-10-22 11:21:06,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2019-10-22 11:21:06,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:21:06,067 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:06,067 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:06,270 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:06,270 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:06,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:06,270 INFO L82 PathProgramCache]: Analyzing trace with hash 587935352, now seen corresponding path program 1 times [2019-10-22 11:21:06,270 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:06,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476267134] [2019-10-22 11:21:06,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:06,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:06,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:06,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476267134] [2019-10-22 11:21:06,442 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:06,442 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:06,442 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961227527] [2019-10-22 11:21:06,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:06,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:06,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:06,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:06,443 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. Second operand 3 states. [2019-10-22 11:21:06,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:06,482 INFO L93 Difference]: Finished difference Result 31 states and 43 transitions. [2019-10-22 11:21:06,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:06,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-22 11:21:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:06,483 INFO L225 Difference]: With dead ends: 31 [2019-10-22 11:21:06,483 INFO L226 Difference]: Without dead ends: 21 [2019-10-22 11:21:06,483 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-22 11:21:06,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-10-22 11:21:06,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-22 11:21:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2019-10-22 11:21:06,487 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 12 [2019-10-22 11:21:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:06,487 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-10-22 11:21:06,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2019-10-22 11:21:06,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:21:06,487 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:06,488 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:06,488 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:06,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:06,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1385803293, now seen corresponding path program 1 times [2019-10-22 11:21:06,488 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:06,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400377900] [2019-10-22 11:21:06,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:06,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:06,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400377900] [2019-10-22 11:21:06,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669222067] [2019-10-22 11:21:06,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:06,837 WARN L254 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 26 conjunts are in the unsatisfiable core [2019-10-22 11:21:06,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:06,996 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:21:07,819 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-22 11:21:07,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 8] total 16 [2019-10-22 11:21:07,820 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752383766] [2019-10-22 11:21:07,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:07,820 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:07,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:07,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:21:07,823 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand 5 states. [2019-10-22 11:21:14,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:14,129 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2019-10-22 11:21:14,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:14,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-10-22 11:21:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:14,138 INFO L225 Difference]: With dead ends: 30 [2019-10-22 11:21:14,138 INFO L226 Difference]: Without dead ends: 26 [2019-10-22 11:21:14,139 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-10-22 11:21:14,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-22 11:21:14,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2019-10-22 11:21:14,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-22 11:21:14,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 31 transitions. [2019-10-22 11:21:14,143 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 31 transitions. Word has length 15 [2019-10-22 11:21:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:14,144 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 31 transitions. [2019-10-22 11:21:14,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2019-10-22 11:21:14,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:21:14,145 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:14,145 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:14,346 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:14,346 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:14,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:14,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1749305641, now seen corresponding path program 1 times [2019-10-22 11:21:14,347 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:14,347 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768526470] [2019-10-22 11:21:14,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:14,348 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:14,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:14,737 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768526470] [2019-10-22 11:21:14,737 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286373077] [2019-10-22 11:21:14,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:14,777 WARN L254 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 26 conjunts are in the unsatisfiable core [2019-10-22 11:21:14,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:14,968 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:21:17,200 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-22 11:21:17,200 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 8] total 19 [2019-10-22 11:21:17,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919835160] [2019-10-22 11:21:17,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:17,201 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:17,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:17,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2019-10-22 11:21:17,202 INFO L87 Difference]: Start difference. First operand 22 states and 31 transitions. Second operand 5 states. [2019-10-22 11:21:19,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:19,364 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2019-10-22 11:21:19,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:19,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-22 11:21:19,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:19,364 INFO L225 Difference]: With dead ends: 22 [2019-10-22 11:21:19,365 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:19,365 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2019-10-22 11:21:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:19,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:19,366 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-22 11:21:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:19,366 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:19,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:19,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:19,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:19,566 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:19,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:19,588 INFO L446 ceAbstractionStarter]: At program point L31(lines 11 32) the Hoare annotation is: true [2019-10-22 11:21:19,588 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-22 11:21:19,588 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:21:19,588 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:19,588 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:19,588 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 27) no Hoare annotation was computed. [2019-10-22 11:21:19,588 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 18 27) no Hoare annotation was computed. [2019-10-22 11:21:19,588 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-22 11:21:19,588 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 27) no Hoare annotation was computed. [2019-10-22 11:21:19,589 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 29) the Hoare annotation is: (= (mod ULTIMATE.start_main_~l~0 4294967296) (mod (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0) 4294967296)) [2019-10-22 11:21:19,589 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 16 29) no Hoare annotation was computed. [2019-10-22 11:21:19,589 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-22 11:21:19,589 INFO L446 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-10-22 11:21:19,589 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:19,589 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-22 11:21:19,589 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 27) no Hoare annotation was computed. [2019-10-22 11:21:19,589 INFO L443 ceAbstractionStarter]: For program point L18(lines 18 27) no Hoare annotation was computed. [2019-10-22 11:21:19,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:19 BoogieIcfgContainer [2019-10-22 11:21:19,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:19,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:19,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:19,600 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:19,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:57" (3/4) ... [2019-10-22 11:21:19,604 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:19,615 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:21:19,615 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:21:19,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c7138b3d-079c-4fde-a252-557b6d269feb/bin/utaipan/witness.graphml [2019-10-22 11:21:19,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:19,657 INFO L168 Benchmark]: Toolchain (without parser) took 23192.29 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 235.4 MB). Free memory was 940.4 MB in the beginning and 1.2 GB in the end (delta: -248.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:19,658 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 964.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:19,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 193.5 MB). Free memory was 940.4 MB in the beginning and 1.2 GB in the end (delta: -251.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,659 INFO L168 Benchmark]: Boogie Preprocessor took 19.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,659 INFO L168 Benchmark]: RCFGBuilder took 280.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,660 INFO L168 Benchmark]: TraceAbstraction took 22461.41 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 41.9 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -28.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,660 INFO L168 Benchmark]: Witness Printer took 55.58 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,663 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 964.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 193.5 MB). Free memory was 940.4 MB in the beginning and 1.2 GB in the end (delta: -251.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 280.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22461.41 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 41.9 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -28.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 55.58 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: l % 4294967296 == (i + v3 + v4 + k + j) % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 22.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 14 SDslu, 46 SDs, 0 SdLazy, 177 SolverSat, 7 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 14.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 59 SyntacticMatches, 12 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 14 HoareAnnotationTreeSize, 3 FomulaSimplifications, 241 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 27462 SizeOfPredicates, 24 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 16/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...