./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/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 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:30,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:30,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:30,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:30,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:30,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:30,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:30,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:30,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:30,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:30,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:30,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:30,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:30,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:30,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:30,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:30,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:30,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:30,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:30,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:30,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:30,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:30,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:30,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:30,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:30,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:30,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:30,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:30,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:30,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:30,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:30,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:30,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:30,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:30,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:30,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:30,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:30,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:30,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:30,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:30,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:30,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:30,386 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:30,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:30,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:30,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:30,389 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:30,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:30,389 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:30,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:30,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:30,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:30,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:30,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:30,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:30,391 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:30,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:30,391 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:30,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:30,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:30,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:30,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:30,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:30,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:30,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:30,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:30,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:30,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:30,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:30,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:30,394 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/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/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 -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2019-10-22 08:55:30,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:30,442 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:30,446 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:30,448 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:30,448 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:30,449 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-10-22 08:55:30,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/data/64aeec8f5/3e812d9b6b4a4f54a07201b986b4564a/FLAGfbf7c7390 [2019-10-22 08:55:30,905 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:30,905 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-10-22 08:55:30,911 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/data/64aeec8f5/3e812d9b6b4a4f54a07201b986b4564a/FLAGfbf7c7390 [2019-10-22 08:55:30,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/data/64aeec8f5/3e812d9b6b4a4f54a07201b986b4564a [2019-10-22 08:55:30,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:30,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:30,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:30,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:30,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:30,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:30" (1/1) ... [2019-10-22 08:55:30,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a80cc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:30, skipping insertion in model container [2019-10-22 08:55:30,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:30" (1/1) ... [2019-10-22 08:55:30,946 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:30,966 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:31,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:31,146 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:31,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:31,245 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:31,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31 WrapperNode [2019-10-22 08:55:31,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:31,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:31,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:31,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:31,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... [2019-10-22 08:55:31,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... [2019-10-22 08:55:31,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:31,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:31,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:31,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:31,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... [2019-10-22 08:55:31,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... [2019-10-22 08:55:31,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... [2019-10-22 08:55:31,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... [2019-10-22 08:55:31,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... [2019-10-22 08:55:31,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... [2019-10-22 08:55:31,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... [2019-10-22 08:55:31,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:31,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:31,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:31,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:31,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/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 [2019-10-22 08:55:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:31,475 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:31,475 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:55:31,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:31 BoogieIcfgContainer [2019-10-22 08:55:31,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:31,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:31,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:31,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:31,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:30" (1/3) ... [2019-10-22 08:55:31,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcbc1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:31, skipping insertion in model container [2019-10-22 08:55:31,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:31" (2/3) ... [2019-10-22 08:55:31,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcbc1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:31, skipping insertion in model container [2019-10-22 08:55:31,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:31" (3/3) ... [2019-10-22 08:55:31,483 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2019-10-22 08:55:31,491 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:31,498 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 08:55:31,507 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 08:55:31,527 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:31,527 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:31,528 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:31,528 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:31,528 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:31,528 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:31,528 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:31,528 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:31,552 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-22 08:55:31,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:55:31,570 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:31,570 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:31,572 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:31,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:31,577 INFO L82 PathProgramCache]: Analyzing trace with hash 889538503, now seen corresponding path program 1 times [2019-10-22 08:55:31,585 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:31,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390893177] [2019-10-22 08:55:31,585 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:31,586 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:31,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:31,728 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390893177] [2019-10-22 08:55:31,729 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:31,729 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:55:31,730 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565913937] [2019-10-22 08:55:31,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:31,733 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:31,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:31,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:31,746 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-10-22 08:55:31,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:31,800 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-10-22 08:55:31,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:31,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-10-22 08:55:31,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:31,809 INFO L225 Difference]: With dead ends: 25 [2019-10-22 08:55:31,809 INFO L226 Difference]: Without dead ends: 14 [2019-10-22 08:55:31,811 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:31,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-22 08:55:31,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-22 08:55:31,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 08:55:31,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-10-22 08:55:31,834 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2019-10-22 08:55:31,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:31,834 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-10-22 08:55:31,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:31,835 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-22 08:55:31,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:55:31,835 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:31,835 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:31,836 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:31,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:31,836 INFO L82 PathProgramCache]: Analyzing trace with hash 148134121, now seen corresponding path program 1 times [2019-10-22 08:55:31,836 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:31,836 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887345141] [2019-10-22 08:55:31,836 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:31,837 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:31,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:31,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:31,866 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887345141] [2019-10-22 08:55:31,866 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:31,867 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:55:31,867 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528718450] [2019-10-22 08:55:31,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:31,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:31,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:31,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:31,869 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 4 states. [2019-10-22 08:55:31,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:31,896 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-10-22 08:55:31,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:55:31,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-22 08:55:31,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:31,897 INFO L225 Difference]: With dead ends: 15 [2019-10-22 08:55:31,897 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 08:55:31,898 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:31,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 08:55:31,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-10-22 08:55:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 08:55:31,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-10-22 08:55:31,901 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-10-22 08:55:31,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:31,901 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-10-22 08:55:31,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:31,902 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-10-22 08:55:31,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:55:31,902 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:31,902 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:31,902 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:31,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:31,903 INFO L82 PathProgramCache]: Analyzing trace with hash 623096429, now seen corresponding path program 1 times [2019-10-22 08:55:31,903 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:31,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614683352] [2019-10-22 08:55:31,903 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:31,904 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:31,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:31,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614683352] [2019-10-22 08:55:31,961 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:31,961 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:55:31,961 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469732162] [2019-10-22 08:55:31,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:55:31,961 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:31,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:55:31,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:31,962 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 5 states. [2019-10-22 08:55:32,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:32,057 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2019-10-22 08:55:32,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:32,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 08:55:32,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:32,058 INFO L225 Difference]: With dead ends: 21 [2019-10-22 08:55:32,058 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:55:32,059 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:55:32,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:55:32,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:55:32,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:55:32,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:55:32,059 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-22 08:55:32,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:32,060 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:32,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:55:32,060 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:32,060 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:55:32,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:55:32,147 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:55:32,148 INFO L439 ceAbstractionStarter]: At program point L64(lines 34 84) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~main__i~0)) (.cse1 (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0))) (or (and .cse0 (= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~0) .cse1) (and (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~2)) (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~0)) .cse0 .cse1))) [2019-10-22 08:55:32,148 INFO L446 ceAbstractionStarter]: At program point L95(lines 8 97) the Hoare annotation is: true [2019-10-22 08:55:32,148 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 91) no Hoare annotation was computed. [2019-10-22 08:55:32,148 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-10-22 08:55:32,148 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 80) no Hoare annotation was computed. [2019-10-22 08:55:32,148 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 08:55:32,148 INFO L443 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-10-22 08:55:32,148 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:55:32,149 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:55:32,149 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 84) no Hoare annotation was computed. [2019-10-22 08:55:32,149 INFO L443 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2019-10-22 08:55:32,149 INFO L439 ceAbstractionStarter]: At program point L90(lines 9 97) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2019-10-22 08:55:32,149 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 65) no Hoare annotation was computed. [2019-10-22 08:55:32,149 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-10-22 08:55:32,149 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2019-10-22 08:55:32,149 INFO L443 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-10-22 08:55:32,150 INFO L439 ceAbstractionStarter]: At program point L74(lines 47 82) the Hoare annotation is: (and (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~0)) (<= 0 ULTIMATE.start_main_~main__i~0) (not (= 0 ULTIMATE.start_main_~__VERIFIER_assert__cond~1)) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0)) [2019-10-22 08:55:32,150 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 82) no Hoare annotation was computed. [2019-10-22 08:55:32,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:32 BoogieIcfgContainer [2019-10-22 08:55:32,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:32,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:32,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:32,163 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:32,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:31" (3/4) ... [2019-10-22 08:55:32,166 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:55:32,175 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:55:32,175 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:55:32,215 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dd4237ff-6fc5-4f0b-b22c-0e96104dec44/bin/uautomizer/witness.graphml [2019-10-22 08:55:32,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:32,217 INFO L168 Benchmark]: Toolchain (without parser) took 1288.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -130.6 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,217 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:32,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -220.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:32,218 INFO L168 Benchmark]: Boogie Preprocessor took 15.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,219 INFO L168 Benchmark]: RCFGBuilder took 184.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,219 INFO L168 Benchmark]: TraceAbstraction took 685.23 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: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:32,219 INFO L168 Benchmark]: Witness Printer took 51.99 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. [2019-10-22 08:55:32,221 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 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -220.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 184.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 685.23 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: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. * Witness Printer took 51.99 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((!(0 == __VERIFIER_assert__cond) && 0 <= main__i) && !(0 == __VERIFIER_assert__cond)) && main__i < main__nlen - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((0 <= main__i && 1 == __VERIFIER_assert__cond) && main__i < main__nlen) || (((!(0 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && 0 <= main__i) && main__i < main__nlen) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 3 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 53 SDslu, 20 SDs, 0 SdLazy, 57 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 45 HoareAnnotationTreeSize, 4 FomulaSimplifications, 147 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 554 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...