./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/n.c40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/n.c40.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/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 e954357898f010ea28e7deb5d5a1ae907cf090e4 ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:25:42,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:25:42,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:25:42,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:25:42,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:25:42,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:25:42,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:25:42,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:25:42,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:25:42,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:25:42,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:25:42,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:25:42,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:25:42,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:25:42,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:25:42,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:25:42,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:25:42,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:25:42,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:25:42,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:25:42,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:25:42,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:25:42,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:25:42,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:25:42,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:25:42,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:25:42,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:25:42,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:25:42,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:25:42,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:25:42,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:25:42,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:25:42,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:25:42,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:25:42,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:25:42,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:25:42,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:25:42,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:25:42,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:25:42,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:25:42,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:25:42,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:25:42,536 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:25:42,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:25:42,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:25:42,538 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:25:42,538 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:25:42,538 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:25:42,538 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:25:42,539 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:25:42,539 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:25:42,539 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:25:42,540 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:25:42,540 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:25:42,541 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:25:42,541 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:25:42,541 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:25:42,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:25:42,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:25:42,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:25:42,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:25:42,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:25:42,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:25:42,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:25:42,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:25:42,544 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:25:42,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:25:42,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:25:42,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:25:42,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:25:42,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:25:42,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:25:42,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:25:42,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:25:42,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:25:42,546 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:25:42,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:25:42,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:25:42,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:25:42,547 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_b7ff238a-6b9d-4547-973e-ddf437e9d66e/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 -> e954357898f010ea28e7deb5d5a1ae907cf090e4 [2019-11-26 02:25:42,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:25:42,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:25:42,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:25:42,713 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:25:42,714 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:25:42,714 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/../../sv-benchmarks/c/loops/n.c40.c [2019-11-26 02:25:42,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/data/58a5529f7/4c64200bd70c4061a24d2a533fde506e/FLAGdbd65e3fb [2019-11-26 02:25:43,103 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:25:43,104 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/sv-benchmarks/c/loops/n.c40.c [2019-11-26 02:25:43,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/data/58a5529f7/4c64200bd70c4061a24d2a533fde506e/FLAGdbd65e3fb [2019-11-26 02:25:43,487 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/data/58a5529f7/4c64200bd70c4061a24d2a533fde506e [2019-11-26 02:25:43,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:25:43,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:25:43,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:25:43,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:25:43,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:25:43,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161f96a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43, skipping insertion in model container [2019-11-26 02:25:43,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:25:43,519 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:25:43,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:25:43,735 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:25:43,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:25:43,860 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:25:43,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43 WrapperNode [2019-11-26 02:25:43,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:25:43,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:25:43,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:25:43,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:25:43,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:25:43,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:25:43,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:25:43,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:25:43,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... [2019-11-26 02:25:43,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:25:43,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:25:43,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:25:43,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:25:43,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/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 [2019-11-26 02:25:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:25:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:25:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:25:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:25:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:25:44,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:25:44,461 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:25:44,461 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:25:44,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:44 BoogieIcfgContainer [2019-11-26 02:25:44,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:25:44,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:25:44,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:25:44,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:25:44,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:25:43" (1/3) ... [2019-11-26 02:25:44,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2914dcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:25:44, skipping insertion in model container [2019-11-26 02:25:44,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:43" (2/3) ... [2019-11-26 02:25:44,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2914dcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:25:44, skipping insertion in model container [2019-11-26 02:25:44,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:44" (3/3) ... [2019-11-26 02:25:44,470 INFO L109 eAbstractionObserver]: Analyzing ICFG n.c40.c [2019-11-26 02:25:44,485 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:25:44,492 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:25:44,502 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:25:44,520 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:25:44,520 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:25:44,520 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:25:44,520 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:25:44,521 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:25:44,521 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:25:44,521 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:25:44,521 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:25:44,534 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-26 02:25:44,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:25:44,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:25:44,541 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:25:44,541 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:25:44,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:25:44,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1931578032, now seen corresponding path program 1 times [2019-11-26 02:25:44,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:25:44,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027405414] [2019-11-26 02:25:44,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:25:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:25:44,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:25:44,757 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027405414] [2019-11-26 02:25:44,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:25:44,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:25:44,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94981596] [2019-11-26 02:25:44,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:25:44,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:25:44,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:25:44,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:25:44,779 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 2 states. [2019-11-26 02:25:44,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:25:44,794 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-11-26 02:25:44,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:25:44,795 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-26 02:25:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:25:44,803 INFO L225 Difference]: With dead ends: 17 [2019-11-26 02:25:44,804 INFO L226 Difference]: Without dead ends: 8 [2019-11-26 02:25:44,807 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:25:44,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-26 02:25:44,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-26 02:25:44,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-26 02:25:44,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-26 02:25:44,836 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-11-26 02:25:44,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:25:44,837 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-26 02:25:44,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:25:44,837 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-26 02:25:44,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:25:44,838 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:25:44,838 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:25:44,838 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:25:44,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:25:44,839 INFO L82 PathProgramCache]: Analyzing trace with hash -456660629, now seen corresponding path program 1 times [2019-11-26 02:25:44,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:25:44,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471788639] [2019-11-26 02:25:44,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:25:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:25:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:25:44,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471788639] [2019-11-26 02:25:44,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:25:44,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:25:44,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645190070] [2019-11-26 02:25:44,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:25:44,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:25:44,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:25:44,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:25:44,954 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2019-11-26 02:25:44,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:25:44,972 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-11-26 02:25:44,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:25:44,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-26 02:25:44,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:25:44,973 INFO L225 Difference]: With dead ends: 15 [2019-11-26 02:25:44,973 INFO L226 Difference]: Without dead ends: 10 [2019-11-26 02:25:44,974 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:25:44,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-26 02:25:44,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-26 02:25:44,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-26 02:25:44,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-26 02:25:44,977 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2019-11-26 02:25:44,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:25:44,977 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-26 02:25:44,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:25:44,978 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-26 02:25:44,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:25:44,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:25:44,978 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:25:44,979 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:25:44,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:25:44,979 INFO L82 PathProgramCache]: Analyzing trace with hash 744650192, now seen corresponding path program 1 times [2019-11-26 02:25:44,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:25:44,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554899722] [2019-11-26 02:25:44,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:25:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:25:45,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:25:45,247 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554899722] [2019-11-26 02:25:45,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:25:45,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:25:45,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119580538] [2019-11-26 02:25:45,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:25:45,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:25:45,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:25:45,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:25:45,249 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2019-11-26 02:25:45,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:25:45,292 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-11-26 02:25:45,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:25:45,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-26 02:25:45,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:25:45,292 INFO L225 Difference]: With dead ends: 10 [2019-11-26 02:25:45,293 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:25:45,293 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:25:45,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:25:45,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:25:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:25:45,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:25:45,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-11-26 02:25:45,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:25:45,294 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:25:45,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:25:45,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:25:45,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:25:45,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:25:45,327 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:25:45,327 INFO L444 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2019-11-26 02:25:45,327 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:25:45,328 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2019-11-26 02:25:45,328 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-26 02:25:45,328 INFO L444 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2019-11-26 02:25:45,328 INFO L447 ceAbstractionStarter]: At program point L18-1(lines 18 20) the Hoare annotation is: true [2019-11-26 02:25:45,328 INFO L444 ceAbstractionStarter]: For program point L12-1(lines 12 15) no Hoare annotation was computed. [2019-11-26 02:25:45,328 INFO L440 ceAbstractionStarter]: At program point L12-3(lines 12 15) the Hoare annotation is: (and (= 0 ~i~0) (<= 0 |~#x~0.offset|) (<= |~#x~0.offset| 0) (= 0 (select (select |#memory_int| |~#x~0.base|) |~#x~0.offset|))) [2019-11-26 02:25:45,329 INFO L444 ceAbstractionStarter]: For program point L12-4(lines 12 15) no Hoare annotation was computed. [2019-11-26 02:25:45,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-26 02:25:45,346 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-26 02:25:45,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:25:45 BoogieIcfgContainer [2019-11-26 02:25:45,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:25:45,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:25:45,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:25:45,352 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:25:45,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:44" (3/4) ... [2019-11-26 02:25:45,358 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:25:45,374 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:25:45,375 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:25:45,375 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:25:45,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b7ff238a-6b9d-4547-973e-ddf437e9d66e/bin/utaipan/witness.graphml [2019-11-26 02:25:45,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:25:45,492 INFO L168 Benchmark]: Toolchain (without parser) took 2000.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -81.2 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,494 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:25:45,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,495 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,495 INFO L168 Benchmark]: Boogie Preprocessor took 36.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:25:45,496 INFO L168 Benchmark]: RCFGBuilder took 489.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,497 INFO L168 Benchmark]: TraceAbstraction took 888.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,497 INFO L168 Benchmark]: Witness Printer took 138.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,500 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 489.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 888.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * Witness Printer took 138.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: 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: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant [2019-11-26 02:25:45,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-26 02:25:45,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((0 == i && 0 <= x) && x <= 0) && 0 == unknown-#memory_int-unknown[x][x] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 1 SDslu, 3 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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...