./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/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 138b427ae0d59b9c3947d32f186331712a870d16 .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:43:01,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:43:01,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:43:01,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:43:01,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:43:01,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:43:01,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:43:01,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:43:01,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:43:01,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:43:01,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:43:01,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:43:01,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:43:01,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:43:01,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:43:01,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:43:01,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:43:01,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:43:01,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:43:01,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:43:01,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:43:01,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:43:01,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:43:01,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:43:01,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:43:01,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:43:01,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:43:01,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:43:01,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:43:01,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:43:01,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:43:01,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:43:01,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:43:01,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:43:01,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:43:01,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:43:01,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:43:01,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:43:01,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:43:01,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:43:01,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:43:01,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:43:01,840 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:43:01,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:43:01,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:43:01,841 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:43:01,841 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:43:01,841 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:43:01,841 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:43:01,841 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:43:01,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:43:01,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:43:01,841 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:43:01,842 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:43:01,842 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:43:01,842 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:43:01,842 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:43:01,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:43:01,843 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:43:01,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:43:01,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:43:01,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:43:01,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:43:01,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:43:01,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:43:01,843 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:43:01,843 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:43:01,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:43:01,844 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:43:01,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:43:01,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:43:01,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:43:01,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:43:01,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:43:01,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:43:01,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:43:01,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:43:01,845 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:43:01,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:43:01,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:43:01,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:43:01,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:43:01,845 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/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/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 -> 138b427ae0d59b9c3947d32f186331712a870d16 [2019-12-07 11:43:01,942 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:43:01,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:43:01,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:43:01,953 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:43:01,953 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:43:01,954 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-12-07 11:43:01,991 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/data/c14aba5fe/83a5fca1ecf84788ad88858b9c8ac4d1/FLAGd9bfbd259 [2019-12-07 11:43:02,419 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:43:02,420 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-12-07 11:43:02,424 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/data/c14aba5fe/83a5fca1ecf84788ad88858b9c8ac4d1/FLAGd9bfbd259 [2019-12-07 11:43:02,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/data/c14aba5fe/83a5fca1ecf84788ad88858b9c8ac4d1 [2019-12-07 11:43:02,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:43:02,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:43:02,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:43:02,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:43:02,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:43:02,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b10c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02, skipping insertion in model container [2019-12-07 11:43:02,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:43:02,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:43:02,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:43:02,560 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:43:02,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:43:02,614 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:43:02,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02 WrapperNode [2019-12-07 11:43:02,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:43:02,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:43:02,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:43:02,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:43:02,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:43:02,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:43:02,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:43:02,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:43:02,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... [2019-12-07 11:43:02,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:43:02,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:43:02,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:43:02,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:43:02,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/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 [2019-12-07 11:43:02,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:43:02,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:43:02,806 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:43:02,806 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 11:43:02,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:43:02 BoogieIcfgContainer [2019-12-07 11:43:02,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:43:02,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:43:02,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:43:02,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:43:02,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:43:02" (1/3) ... [2019-12-07 11:43:02,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1b6f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:43:02, skipping insertion in model container [2019-12-07 11:43:02,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:02" (2/3) ... [2019-12-07 11:43:02,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1b6f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:43:02, skipping insertion in model container [2019-12-07 11:43:02,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:43:02" (3/3) ... [2019-12-07 11:43:02,812 INFO L109 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2019-12-07 11:43:02,818 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:43:02,823 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:43:02,830 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:43:02,844 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:43:02,844 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:43:02,844 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:43:02,844 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:43:02,844 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:43:02,845 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:43:02,845 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:43:02,845 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:43:02,854 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-12-07 11:43:02,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:43:02,857 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:43:02,857 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:43:02,858 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:43:02,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:43:02,861 INFO L82 PathProgramCache]: Analyzing trace with hash 79507751, now seen corresponding path program 1 times [2019-12-07 11:43:02,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 11:43:02,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472608614] [2019-12-07 11:43:02,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:43:02,930 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 11:43:02,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250453293] [2019-12-07 11:43:02,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/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 [2019-12-07 11:43:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:43:02,962 WARN L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 31 conjunts are in the unsatisfiable core [2019-12-07 11:43:02,966 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:43:03,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:43:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:43:03,064 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:43:05,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:43:05,273 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472608614] [2019-12-07 11:43:05,273 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 11:43:05,273 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250453293] [2019-12-07 11:43:05,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:43:05,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 12 [2019-12-07 11:43:05,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993251583] [2019-12-07 11:43:05,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 11:43:05,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 11:43:05,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 11:43:05,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=103, Unknown=1, NotChecked=0, Total=132 [2019-12-07 11:43:05,288 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 12 states. [2019-12-07 11:43:05,656 WARN L860 $PredicateComparison]: unable to prove that (and (or (= (* c_ULTIMATE.start_main_~main__n~0 (+ c_ULTIMATE.start_main_~main__n~0 1)) (* 2 c_ULTIMATE.start_main_~main__sum~0)) (<= c_ULTIMATE.start_main_~main__i~0 c_ULTIMATE.start_main_~main__n~0)) (forall ((ULTIMATE.start_main_~main__n~0 Int)) (or (< c_ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__n~0) (= (+ (* 2 c_ULTIMATE.start_main_~main__sum~0) (* 2 c_ULTIMATE.start_main_~main__i~0)) (* ULTIMATE.start_main_~main__n~0 (+ ULTIMATE.start_main_~main__n~0 1))) (< ULTIMATE.start_main_~main__n~0 c_ULTIMATE.start_main_~main__i~0)))) is different from true [2019-12-07 11:43:05,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:43:05,724 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-12-07 11:43:05,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 11:43:05,726 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2019-12-07 11:43:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:43:05,732 INFO L225 Difference]: With dead ends: 36 [2019-12-07 11:43:05,732 INFO L226 Difference]: Without dead ends: 14 [2019-12-07 11:43:05,735 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=63, Invalid=245, Unknown=2, NotChecked=32, Total=342 [2019-12-07 11:43:05,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-07 11:43:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 11:43:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 11:43:05,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-12-07 11:43:05,756 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2019-12-07 11:43:05,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:43:05,756 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-12-07 11:43:05,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 11:43:05,756 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-12-07 11:43:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 11:43:05,757 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:43:05,757 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:43:05,957 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:43:05,958 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:43:05,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:43:05,958 INFO L82 PathProgramCache]: Analyzing trace with hash -904461305, now seen corresponding path program 1 times [2019-12-07 11:43:05,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 11:43:05,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472011138] [2019-12-07 11:43:05,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:43:05,977 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 11:43:05,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156184163] [2019-12-07 11:43:05,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/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 [2019-12-07 11:43:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:43:06,016 WARN L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 39 conjunts are in the unsatisfiable core [2019-12-07 11:43:06,017 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:43:06,073 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:43:06,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:43:06,083 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:43:06,186 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__n~0 Int)) (let ((.cse0 (+ c_ULTIMATE.start_main_~main__i~0 1))) (or (= (+ (* 2 c_ULTIMATE.start_main_~main__sum~0) (* 4 c_ULTIMATE.start_main_~main__i~0) 2) (* ULTIMATE.start_main_~main__n~0 (+ ULTIMATE.start_main_~main__n~0 1))) (< ULTIMATE.start_main_~main__n~0 .cse0) (< .cse0 ULTIMATE.start_main_~main__n~0)))) is different from true [2019-12-07 11:43:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2019-12-07 11:43:06,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472011138] [2019-12-07 11:43:06,412 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 11:43:06,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156184163] [2019-12-07 11:43:06,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [186203405] [2019-12-07 11:43:06,428 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-12-07 11:43:06,428 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 11:43:06,432 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 11:43:06,436 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 11:43:06,436 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 11:43:06,587 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 11:43:06,994 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 11:43:06,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 11:43:06,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 15 [2019-12-07 11:43:06,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449342752] [2019-12-07 11:43:06,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-12-07 11:43:06,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 11:43:06,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-12-07 11:43:06,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=463, Unknown=2, NotChecked=44, Total=600 [2019-12-07 11:43:06,997 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 15 states. [2019-12-07 11:43:09,579 WARN L192 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 19 [2019-12-07 11:43:09,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:43:09,663 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-12-07 11:43:09,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 11:43:09,663 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 13 [2019-12-07 11:43:09,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:43:09,663 INFO L225 Difference]: With dead ends: 16 [2019-12-07 11:43:09,664 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 11:43:09,665 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=163, Invalid=960, Unknown=3, NotChecked=64, Total=1190 [2019-12-07 11:43:09,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 11:43:09,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 11:43:09,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 11:43:09,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 11:43:09,665 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-12-07 11:43:09,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:43:09,666 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:43:09,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-12-07 11:43:09,666 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:43:09,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 11:43:09,867 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:43:09,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 11:43:10,159 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2019-12-07 11:43:10,162 INFO L249 CegarLoopResult]: At program point L97(lines 8 101) the Hoare annotation is: true [2019-12-07 11:43:10,162 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 11:43:10,162 INFO L246 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2019-12-07 11:43:10,162 INFO L246 CegarLoopResult]: For program point L62(lines 62 71) no Hoare annotation was computed. [2019-12-07 11:43:10,162 INFO L246 CegarLoopResult]: For program point L44(lines 44 78) no Hoare annotation was computed. [2019-12-07 11:43:10,162 INFO L246 CegarLoopResult]: For program point L40(lines 40 83) no Hoare annotation was computed. [2019-12-07 11:43:10,162 INFO L246 CegarLoopResult]: For program point L36(lines 36 88) no Hoare annotation was computed. [2019-12-07 11:43:10,162 INFO L246 CegarLoopResult]: For program point L32(lines 32 93) no Hoare annotation was computed. [2019-12-07 11:43:10,162 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 11:43:10,163 INFO L246 CegarLoopResult]: For program point L28(lines 28 98) no Hoare annotation was computed. [2019-12-07 11:43:10,163 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 64) no Hoare annotation was computed. [2019-12-07 11:43:10,163 INFO L242 CegarLoopResult]: At program point L53(lines 45 74) the Hoare annotation is: (and (or (= (* ULTIMATE.start_main_~main__n~0 (+ ULTIMATE.start_main_~main__n~0 1)) (* ULTIMATE.start_main_~main__sum~0 2)) (<= ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__n~0)) (forall ((ULTIMATE.start_main_~main__n~0 Int)) (or (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__n~0) (< ULTIMATE.start_main_~main__n~0 ULTIMATE.start_main_~main__i~0) (= (+ (* ULTIMATE.start_main_~main__sum~0 2) (* ULTIMATE.start_main_~main__i~0 2)) (* ULTIMATE.start_main_~main__n~0 (+ ULTIMATE.start_main_~main__n~0 1)))))) [2019-12-07 11:43:10,163 INFO L246 CegarLoopResult]: For program point L20(lines 20 99) no Hoare annotation was computed. [2019-12-07 11:43:10,163 INFO L246 CegarLoopResult]: For program point L14(lines 14 100) no Hoare annotation was computed. [2019-12-07 11:43:10,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:43:10 BoogieIcfgContainer [2019-12-07 11:43:10,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:43:10,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:43:10,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:43:10,176 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:43:10,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:43:02" (3/4) ... [2019-12-07 11:43:10,178 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 11:43:10,185 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 11:43:10,185 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 11:43:10,224 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7f8cd936-39c1-4ea9-88fc-28e3f165c896/bin/utaipan/witness.graphml [2019-12-07 11:43:10,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:43:10,226 INFO L168 Benchmark]: Toolchain (without parser) took 7790.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -113.1 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:43:10,226 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:43:10,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:43:10,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:43:10,227 INFO L168 Benchmark]: Boogie Preprocessor took 10.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:43:10,228 INFO L168 Benchmark]: RCFGBuilder took 160.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:43:10,228 INFO L168 Benchmark]: TraceAbstraction took 7367.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:43:10,229 INFO L168 Benchmark]: Witness Printer took 48.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:43:10,231 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 160.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7367.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. * Witness Printer took 48.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 64]: 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: 45]: Loop Invariant [2019-12-07 11:43:10,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-12-07 11:43:10,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] Derived loop invariant: (main__n * (main__n + 1) == main__sum * 2 || main__i <= main__n) && (forall ULTIMATE.start_main_~main__n~0 : int :: (main__i < ULTIMATE.start_main_~main__n~0 || ULTIMATE.start_main_~main__n~0 < main__i) || main__sum * 2 + main__i * 2 == ULTIMATE.start_main_~main__n~0 * (ULTIMATE.start_main_~main__n~0 + 1)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 7.0s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 17 SDtfs, 39 SDslu, 87 SDs, 0 SdLazy, 233 SolverSat, 18 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 15 SyntacticMatches, 9 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 13 NumberOfFragments, 36 HoareAnnotationTreeSize, 2 FomulaSimplifications, 85 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 12 QuantifiedInterpolants, 4700 SizeOfPredicates, 12 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 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...