./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt2.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_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2cb759cd38361d75aae36cfe760e81de0f537121 ....................................................................................................................................................................................................................................................................................................................................................... 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 14:48:47,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:48:47,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:48:47,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:48:47,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:48:47,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:48:47,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:48:47,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:48:47,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:48:47,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:48:47,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:48:47,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:48:47,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:48:47,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:48:47,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:48:47,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:48:47,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:48:47,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:48:47,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:48:47,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:48:47,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:48:47,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:48:47,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:48:47,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:48:47,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:48:47,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:48:47,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:48:47,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:48:47,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:48:47,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:48:47,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:48:47,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:48:47,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:48:47,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:48:47,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:48:47,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:48:47,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:48:47,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:48:47,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:48:47,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:48:47,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:48:47,418 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 14:48:47,427 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:48:47,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:48:47,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:48:47,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:48:47,428 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:48:47,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:48:47,429 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:48:47,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:48:47,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:48:47,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:48:47,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:48:47,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:48:47,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:48:47,430 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:48:47,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:48:47,430 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:48:47,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:48:47,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:48:47,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:48:47,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:48:47,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:48:47,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:48:47,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:48:47,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:48:47,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:48:47,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:48:47,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:48:47,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:48:47,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:48:47,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer 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 -> Automizer 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 -> 2cb759cd38361d75aae36cfe760e81de0f537121 [2019-12-07 14:48:47,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:48:47,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:48:47,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:48:47,541 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:48:47,542 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:48:47,542 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/../../sv-benchmarks/c/loops-crafted-1/sumt2.c [2019-12-07 14:48:47,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/data/9592625b9/22958f9e8d744f87b172493b4a395350/FLAGa29cdf0f9 [2019-12-07 14:48:47,922 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:48:47,923 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/sv-benchmarks/c/loops-crafted-1/sumt2.c [2019-12-07 14:48:47,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/data/9592625b9/22958f9e8d744f87b172493b4a395350/FLAGa29cdf0f9 [2019-12-07 14:48:47,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/data/9592625b9/22958f9e8d744f87b172493b4a395350 [2019-12-07 14:48:47,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:48:47,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:48:47,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:48:47,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:48:47,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:48:47,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:48:47" (1/1) ... [2019-12-07 14:48:47,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5014c5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:47, skipping insertion in model container [2019-12-07 14:48:47,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:48:47" (1/1) ... [2019-12-07 14:48:47,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:48:47,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:48:48,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:48:48,070 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:48:48,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:48:48,126 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:48:48,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48 WrapperNode [2019-12-07 14:48:48,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:48:48,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:48:48,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:48:48,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:48:48,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... [2019-12-07 14:48:48,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... [2019-12-07 14:48:48,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:48:48,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:48:48,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:48:48,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:48:48,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... [2019-12-07 14:48:48,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... [2019-12-07 14:48:48,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... [2019-12-07 14:48:48,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... [2019-12-07 14:48:48,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... [2019-12-07 14:48:48,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... [2019-12-07 14:48:48,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... [2019-12-07 14:48:48,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:48:48,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:48:48,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:48:48,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:48:48,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/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 14:48:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:48:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:48:48,304 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:48:48,304 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 14:48:48,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:48:48 BoogieIcfgContainer [2019-12-07 14:48:48,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:48:48,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:48:48,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:48:48,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:48:48,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:48:47" (1/3) ... [2019-12-07 14:48:48,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79af0c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:48:48, skipping insertion in model container [2019-12-07 14:48:48,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:48:48" (2/3) ... [2019-12-07 14:48:48,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79af0c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:48:48, skipping insertion in model container [2019-12-07 14:48:48,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:48:48" (3/3) ... [2019-12-07 14:48:48,309 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2019-12-07 14:48:48,315 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:48:48,319 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:48:48,326 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:48:48,340 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:48:48,340 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:48:48,340 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:48:48,340 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:48:48,340 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:48:48,340 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:48:48,340 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:48:48,340 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:48:48,349 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-12-07 14:48:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 14:48:48,352 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:48:48,353 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:48:48,353 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:48:48,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:48:48,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1807304968, now seen corresponding path program 1 times [2019-12-07 14:48:48,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:48:48,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687912606] [2019-12-07 14:48:48,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:48:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:48:48,436 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 14:48:48,436 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687912606] [2019-12-07 14:48:48,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:48:48,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:48:48,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574521307] [2019-12-07 14:48:48,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:48:48,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:48:48,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:48:48,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:48:48,451 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-12-07 14:48:48,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:48:48,461 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-12-07 14:48:48,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:48:48,462 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-12-07 14:48:48,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:48:48,468 INFO L225 Difference]: With dead ends: 22 [2019-12-07 14:48:48,468 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 14:48:48,469 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 [2019-12-07 14:48:48,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 14:48:48,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 14:48:48,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 14:48:48,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-12-07 14:48:48,489 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2019-12-07 14:48:48,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:48:48,489 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-12-07 14:48:48,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:48:48,490 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-12-07 14:48:48,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 14:48:48,490 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:48:48,490 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:48:48,490 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:48:48,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:48:48,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1806977267, now seen corresponding path program 1 times [2019-12-07 14:48:48,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:48:48,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865683229] [2019-12-07 14:48:48,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:48:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:48:48,713 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 14:48:48,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865683229] [2019-12-07 14:48:48,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:48:48,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 14:48:48,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329419533] [2019-12-07 14:48:48,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:48:48,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:48:48,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:48:48,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:48:48,715 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 5 states. [2019-12-07 14:48:50,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:48:50,774 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-12-07 14:48:50,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:48:50,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-07 14:48:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:48:50,776 INFO L225 Difference]: With dead ends: 16 [2019-12-07 14:48:50,776 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 14:48:50,776 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:48:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 14:48:50,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-12-07 14:48:50,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 14:48:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-12-07 14:48:50,779 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2019-12-07 14:48:50,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:48:50,779 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-12-07 14:48:50,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:48:50,779 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-12-07 14:48:50,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 14:48:50,780 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:48:50,780 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:48:50,780 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:48:50,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:48:50,780 INFO L82 PathProgramCache]: Analyzing trace with hash 78673311, now seen corresponding path program 1 times [2019-12-07 14:48:50,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:48:50,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776201479] [2019-12-07 14:48:50,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:48:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:48:51,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:48:51,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776201479] [2019-12-07 14:48:51,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066903144] [2019-12-07 14:48:51,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:48:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:48:51,040 WARN L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 14:48:51,045 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:48:51,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:48:51,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:48:51,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-12-07 14:48:51,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972194773] [2019-12-07 14:48:51,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 14:48:51,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:48:51,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 14:48:51,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:48:51,102 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 12 states. [2019-12-07 14:48:51,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:48:51,238 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2019-12-07 14:48:51,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 14:48:51,239 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 10 [2019-12-07 14:48:51,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:48:51,239 INFO L225 Difference]: With dead ends: 22 [2019-12-07 14:48:51,239 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:48:51,240 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2019-12-07 14:48:51,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:48:51,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:48:51,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:48:51,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:48:51,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-12-07 14:48:51,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:48:51,240 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:48:51,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 14:48:51,240 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:48:51,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:48:51,441 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:48:51,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 14:48:51,494 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 14:48:51,494 INFO L249 CegarLoopResult]: At program point L27(lines 11 28) the Hoare annotation is: true [2019-12-07 14:48:51,495 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-12-07 14:48:51,495 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 14:48:51,495 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 14:48:51,495 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 14:48:51,495 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 14:48:51,496 INFO L246 CegarLoopResult]: For program point L20(lines 20 23) no Hoare annotation was computed. [2019-12-07 14:48:51,496 INFO L246 CegarLoopResult]: For program point L20-2(lines 20 23) no Hoare annotation was computed. [2019-12-07 14:48:51,496 INFO L242 CegarLoopResult]: At program point L18-2(lines 18 25) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 .cse0))) [2019-12-07 14:48:51,496 INFO L246 CegarLoopResult]: For program point L18-3(lines 18 25) no Hoare annotation was computed. [2019-12-07 14:48:51,496 INFO L246 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2019-12-07 14:48:51,497 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-12-07 14:48:51,497 INFO L249 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-12-07 14:48:51,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:48:51 BoogieIcfgContainer [2019-12-07 14:48:51,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:48:51,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:48:51,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:48:51,516 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:48:51,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:48:48" (3/4) ... [2019-12-07 14:48:51,519 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:48:51,526 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 14:48:51,526 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 14:48:51,554 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_be1471b3-1423-4ed6-ab0f-a8f433333f43/bin/uautomizer/witness.graphml [2019-12-07 14:48:51,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:48:51,555 INFO L168 Benchmark]: Toolchain (without parser) took 3617.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 947.8 MB in the beginning and 947.0 MB in the end (delta: 756.5 kB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:48:51,556 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:48:51,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -143.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:48:51,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:48:51,557 INFO L168 Benchmark]: Boogie Preprocessor took 12.17 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 14:48:51,557 INFO L168 Benchmark]: RCFGBuilder took 142.41 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 14:48:51,557 INFO L168 Benchmark]: TraceAbstraction took 3209.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 952.4 MB in the end (delta: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:48:51,558 INFO L168 Benchmark]: Witness Printer took 38.79 ms. Allocated memory is still 1.1 GB. Free memory was 952.4 MB in the beginning and 947.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:48:51,559 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 189.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -143.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.17 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 142.41 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 3209.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 952.4 MB in the end (delta: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 11.5 GB. * Witness Printer took 38.79 ms. Allocated memory is still 1.1 GB. Free memory was 952.4 MB in the beginning and 947.0 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: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: i + j <= l && l <= i + j - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 14 SDslu, 19 SDs, 0 SdLazy, 72 SolverSat, 10 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 13 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 69 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 2859 SizeOfPredicates, 5 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...