./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+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_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/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 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 ................................................................................................................................................................................................................................................................................................................................................................. 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 22:08:27,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 22:08:27,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 22:08:27,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 22:08:27,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 22:08:27,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 22:08:27,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 22:08:27,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 22:08:27,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 22:08:27,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 22:08:27,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 22:08:27,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 22:08:27,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 22:08:27,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 22:08:27,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 22:08:27,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 22:08:27,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 22:08:27,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 22:08:27,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 22:08:27,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 22:08:27,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 22:08:27,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 22:08:27,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 22:08:27,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 22:08:27,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 22:08:27,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 22:08:27,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 22:08:27,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 22:08:27,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 22:08:27,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 22:08:27,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 22:08:27,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 22:08:27,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 22:08:27,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 22:08:27,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 22:08:27,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 22:08:27,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 22:08:27,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 22:08:27,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 22:08:27,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 22:08:27,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 22:08:27,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 22:08:27,693 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 22:08:27,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 22:08:27,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 22:08:27,694 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 22:08:27,694 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 22:08:27,694 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 22:08:27,694 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 22:08:27,695 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 22:08:27,695 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 22:08:27,695 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 22:08:27,695 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 22:08:27,695 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 22:08:27,696 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 22:08:27,696 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 22:08:27,696 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 22:08:27,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 22:08:27,697 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 22:08:27,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 22:08:27,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 22:08:27,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 22:08:27,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 22:08:27,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 22:08:27,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 22:08:27,698 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 22:08:27,698 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 22:08:27,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 22:08:27,699 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 22:08:27,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 22:08:27,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 22:08:27,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 22:08:27,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 22:08:27,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:08:27,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 22:08:27,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 22:08:27,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 22:08:27,701 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 22:08:27,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 22:08:27,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 22:08:27,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 22:08:27,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 22:08:27,701 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_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/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 -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2019-12-07 22:08:27,799 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 22:08:27,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 22:08:27,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 22:08:27,809 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 22:08:27,809 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 22:08:27,810 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-12-07 22:08:27,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/data/403f3518b/0486123af9574a739d32ce0c0863b984/FLAG8631cdd30 [2019-12-07 22:08:28,159 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 22:08:28,159 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-12-07 22:08:28,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/data/403f3518b/0486123af9574a739d32ce0c0863b984/FLAG8631cdd30 [2019-12-07 22:08:28,600 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/data/403f3518b/0486123af9574a739d32ce0c0863b984 [2019-12-07 22:08:28,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 22:08:28,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 22:08:28,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 22:08:28,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 22:08:28,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 22:08:28,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,614 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 10:08:28, skipping insertion in model container [2019-12-07 22:08:28,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 22:08:28,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:08:28,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:08:28,749 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 22:08:28,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:08:28,808 INFO L208 MainTranslator]: Completed translation [2019-12-07 22:08:28,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28 WrapperNode [2019-12-07 22:08:28,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 22:08:28,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 22:08:28,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 22:08:28,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 22:08:28,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 22:08:28,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 22:08:28,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 22:08:28,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 22:08:28,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... [2019-12-07 22:08:28,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 22:08:28,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 22:08:28,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 22:08:28,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 22:08:28,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/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 22:08:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 22:08:28,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 22:08:29,025 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 22:08:29,025 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 22:08:29,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:29 BoogieIcfgContainer [2019-12-07 22:08:29,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 22:08:29,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 22:08:29,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 22:08:29,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 22:08:29,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:08:28" (1/3) ... [2019-12-07 22:08:29,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12301c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:08:29, skipping insertion in model container [2019-12-07 22:08:29,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:28" (2/3) ... [2019-12-07 22:08:29,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12301c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:08:29, skipping insertion in model container [2019-12-07 22:08:29,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:29" (3/3) ... [2019-12-07 22:08:29,031 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2019-12-07 22:08:29,038 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 22:08:29,042 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 22:08:29,049 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 22:08:29,063 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 22:08:29,063 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 22:08:29,063 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 22:08:29,064 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 22:08:29,064 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 22:08:29,064 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 22:08:29,064 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 22:08:29,064 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 22:08:29,073 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-12-07 22:08:29,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 22:08:29,077 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:29,077 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 22:08:29,077 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:29,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:29,081 INFO L82 PathProgramCache]: Analyzing trace with hash 75916502, now seen corresponding path program 1 times [2019-12-07 22:08:29,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:29,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861251612] [2019-12-07 22:08:29,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:29,186 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 22:08:29,187 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861251612] [2019-12-07 22:08:29,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:29,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 22:08:29,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353745443] [2019-12-07 22:08:29,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:08:29,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:29,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:08:29,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:08:29,202 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2019-12-07 22:08:29,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:29,244 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-12-07 22:08:29,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 22:08:29,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 22:08:29,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:29,252 INFO L225 Difference]: With dead ends: 21 [2019-12-07 22:08:29,252 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 22:08:29,253 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 22:08:29,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 22:08:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 22:08:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 22:08:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-12-07 22:08:29,275 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2019-12-07 22:08:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:29,275 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-12-07 22:08:29,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:08:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-12-07 22:08:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 22:08:29,276 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:29,276 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:08:29,277 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:29,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:29,277 INFO L82 PathProgramCache]: Analyzing trace with hash -58560968, now seen corresponding path program 1 times [2019-12-07 22:08:29,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:29,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367175013] [2019-12-07 22:08:29,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:29,299 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 22:08:29,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367175013] [2019-12-07 22:08:29,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:29,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 22:08:29,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344780630] [2019-12-07 22:08:29,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:08:29,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:29,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:08:29,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:08:29,301 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 4 states. [2019-12-07 22:08:29,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:29,326 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-07 22:08:29,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 22:08:29,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 22:08:29,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:29,327 INFO L225 Difference]: With dead ends: 14 [2019-12-07 22:08:29,327 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 22:08:29,327 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 22:08:29,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 22:08:29,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-12-07 22:08:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 22:08:29,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-07 22:08:29,330 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2019-12-07 22:08:29,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:29,330 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 22:08:29,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:08:29,330 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-07 22:08:29,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 22:08:29,330 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:29,330 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:08:29,331 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:29,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:29,331 INFO L82 PathProgramCache]: Analyzing trace with hash -442388484, now seen corresponding path program 1 times [2019-12-07 22:08:29,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:29,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876928793] [2019-12-07 22:08:29,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:29,374 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 22:08:29,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876928793] [2019-12-07 22:08:29,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:29,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 22:08:29,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361296027] [2019-12-07 22:08:29,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 22:08:29,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:29,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 22:08:29,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 22:08:29,376 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 5 states. [2019-12-07 22:08:29,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:29,452 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2019-12-07 22:08:29,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 22:08:29,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 22:08:29,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:29,453 INFO L225 Difference]: With dead ends: 20 [2019-12-07 22:08:29,453 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 22:08:29,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 22:08:29,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 22:08:29,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 22:08:29,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 22:08:29,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 22:08:29,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-12-07 22:08:29,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:29,454 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 22:08:29,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 22:08:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 22:08:29,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 22:08:29,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 22:08:29,524 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 22:08:29,524 INFO L242 CegarLoopResult]: At program point L64(lines 34 84) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~main__i~0)) (.cse1 (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0))) (or (and .cse0 (= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~0) .cse1) (and (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~2)) (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~0)) .cse0 .cse1))) [2019-12-07 22:08:29,524 INFO L249 CegarLoopResult]: At program point L95(lines 8 97) the Hoare annotation is: true [2019-12-07 22:08:29,524 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-12-07 22:08:29,524 INFO L246 CegarLoopResult]: For program point L21(lines 21 91) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L246 CegarLoopResult]: For program point L71(lines 71 80) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L246 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L246 CegarLoopResult]: For program point L28(lines 28 84) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L246 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L242 CegarLoopResult]: At program point L90(lines 9 97) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2019-12-07 22:08:29,525 INFO L246 CegarLoopResult]: For program point L57(lines 57 65) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L246 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-12-07 22:08:29,525 INFO L242 CegarLoopResult]: At program point L74(lines 47 82) the Hoare annotation is: (and (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~0)) (<= 0 ULTIMATE.start_main_~main__i~0) (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~1)) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0)) [2019-12-07 22:08:29,526 INFO L246 CegarLoopResult]: For program point L41(lines 41 82) no Hoare annotation was computed. [2019-12-07 22:08:29,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:08:29 BoogieIcfgContainer [2019-12-07 22:08:29,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 22:08:29,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 22:08:29,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 22:08:29,539 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 22:08:29,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:29" (3/4) ... [2019-12-07 22:08:29,542 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 22:08:29,549 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 22:08:29,549 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 22:08:29,587 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b6f444d9-f6e0-4bec-9783-3b9cf505e98a/bin/utaipan/witness.graphml [2019-12-07 22:08:29,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 22:08:29,589 INFO L168 Benchmark]: Toolchain (without parser) took 984.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 939.3 MB in the beginning and 989.3 MB in the end (delta: -49.9 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-12-07 22:08:29,589 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:08:29,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 22:08:29,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.71 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 22:08:29,591 INFO L168 Benchmark]: Boogie Preprocessor took 15.65 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 22:08:29,591 INFO L168 Benchmark]: RCFGBuilder took 179.22 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 22:08:29,592 INFO L168 Benchmark]: TraceAbstraction took 511.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 994.6 MB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-12-07 22:08:29,592 INFO L168 Benchmark]: Witness Printer took 48.91 ms. Allocated memory is still 1.1 GB. Free memory was 994.6 MB in the beginning and 989.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 22:08:29,595 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 202.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.71 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.65 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 179.22 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 511.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 994.6 MB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * Witness Printer took 48.91 ms. Allocated memory is still 1.1 GB. Free memory was 994.6 MB in the beginning and 989.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((!(0 == __VERIFIER_assert__cond) && 0 <= main__i) && !(0 == __VERIFIER_assert__cond)) && main__i < main__nlen - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((0 <= main__i && 1 == __VERIFIER_assert__cond) && main__i < main__nlen) || (((!(0 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && 0 <= main__i) && main__i < main__nlen) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 52 SDslu, 10 SDs, 0 SdLazy, 57 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 45 HoareAnnotationTreeSize, 4 FomulaSimplifications, 149 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...