./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/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 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a ...................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:20:07,461 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:20:07,462 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:20:07,468 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:20:07,469 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:20:07,469 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:20:07,470 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:20:07,471 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:20:07,473 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:20:07,473 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:20:07,474 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:20:07,474 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:20:07,475 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:20:07,475 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:20:07,476 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:20:07,476 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:20:07,476 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:20:07,477 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:20:07,479 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:20:07,480 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:20:07,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:20:07,481 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:20:07,486 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:20:07,487 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:20:07,487 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:20:07,487 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:20:07,488 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:20:07,489 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:20:07,489 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:20:07,490 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:20:07,490 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:20:07,490 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:20:07,491 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:20:07,491 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:20:07,491 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:20:07,491 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:20:07,492 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 16:20:07,498 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:20:07,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:20:07,499 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:20:07,499 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 16:20:07,500 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:20:07,500 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:20:07,500 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:20:07,500 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:20:07,500 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:20:07,500 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:20:07,500 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:20:07,500 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:20:07,501 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:20:07,501 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:20:07,501 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:20:07,501 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:20:07,501 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:20:07,501 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:20:07,501 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:20:07,501 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:20:07,501 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:20:07,502 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:20:07,502 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:20:07,502 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:20:07,502 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:20:07,502 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:20:07,502 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:20:07,502 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:20:07,502 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:20:07,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:20:07,503 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/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 -> 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a [2018-11-18 16:20:07,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:20:07,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:20:07,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:20:07,536 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:20:07,536 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:20:07,536 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-18 16:20:07,581 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/data/fb7cd8095/b8e88429f5d04a3e9e9a136f56ff27c9/FLAG13f2b992a [2018-11-18 16:20:07,992 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:20:07,993 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/sv-benchmarks/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-18 16:20:07,997 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/data/fb7cd8095/b8e88429f5d04a3e9e9a136f56ff27c9/FLAG13f2b992a [2018-11-18 16:20:08,008 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/data/fb7cd8095/b8e88429f5d04a3e9e9a136f56ff27c9 [2018-11-18 16:20:08,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:20:08,011 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:20:08,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:20:08,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:20:08,013 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:20:08,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:20:08" (1/1) ... [2018-11-18 16:20:08,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfef79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08, skipping insertion in model container [2018-11-18 16:20:08,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:20:08" (1/1) ... [2018-11-18 16:20:08,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:20:08,036 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:20:08,142 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:20:08,144 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:20:08,155 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:20:08,164 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:20:08,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08 WrapperNode [2018-11-18 16:20:08,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:20:08,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:20:08,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:20:08,165 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:20:08,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08" (1/1) ... [2018-11-18 16:20:08,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08" (1/1) ... [2018-11-18 16:20:08,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08" (1/1) ... [2018-11-18 16:20:08,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08" (1/1) ... [2018-11-18 16:20:08,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08" (1/1) ... [2018-11-18 16:20:08,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08" (1/1) ... [2018-11-18 16:20:08,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08" (1/1) ... [2018-11-18 16:20:08,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:20:08,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:20:08,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:20:08,181 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:20:08,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/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 [2018-11-18 16:20:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:20:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:20:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:20:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:20:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 16:20:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 16:20:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 16:20:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:20:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:20:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:20:08,364 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:20:08,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:20:08 BoogieIcfgContainer [2018-11-18 16:20:08,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:20:08,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:20:08,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:20:08,368 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:20:08,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:20:08" (1/3) ... [2018-11-18 16:20:08,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c707e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:20:08, skipping insertion in model container [2018-11-18 16:20:08,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:08" (2/3) ... [2018-11-18 16:20:08,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c707e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:20:08, skipping insertion in model container [2018-11-18 16:20:08,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:20:08" (3/3) ... [2018-11-18 16:20:08,371 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-18 16:20:08,377 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:20:08,382 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:20:08,390 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:20:08,411 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:20:08,411 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:20:08,411 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:20:08,411 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:20:08,412 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:20:08,412 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:20:08,412 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:20:08,412 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:20:08,412 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:20:08,423 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 16:20:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:20:08,428 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:20:08,428 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:20:08,430 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:20:08,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:20:08,435 INFO L82 PathProgramCache]: Analyzing trace with hash -696314067, now seen corresponding path program 1 times [2018-11-18 16:20:08,437 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:20:08,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:20:08,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:20:08,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:20:08,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:20:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:20:08,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:20:08,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:20:08,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:20:08,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:20:08,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:20:08,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:20:08,633 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2018-11-18 16:20:08,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:20:08,801 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2018-11-18 16:20:08,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:20:08,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-18 16:20:08,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:20:08,807 INFO L225 Difference]: With dead ends: 30 [2018-11-18 16:20:08,807 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 16:20:08,809 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:20:08,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 16:20:08,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-18 16:20:08,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 16:20:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-18 16:20:08,833 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-11-18 16:20:08,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:20:08,834 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-18 16:20:08,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:20:08,834 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-18 16:20:08,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 16:20:08,834 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:20:08,835 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:20:08,835 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:20:08,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:20:08,835 INFO L82 PathProgramCache]: Analyzing trace with hash -112838900, now seen corresponding path program 1 times [2018-11-18 16:20:08,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:20:08,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:20:08,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:20:08,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:20:08,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:20:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:20:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:20:08,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:20:08,956 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:20:08,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:20:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:20:08,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:20:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:20:09,064 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:20:09,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-11-18 16:20:09,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 16:20:09,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 16:20:09,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:20:09,065 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2018-11-18 16:20:09,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:20:09,161 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-18 16:20:09,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 16:20:09,162 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-18 16:20:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:20:09,163 INFO L225 Difference]: With dead ends: 22 [2018-11-18 16:20:09,163 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 16:20:09,164 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-11-18 16:20:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 16:20:09,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 16:20:09,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 16:20:09,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-18 16:20:09,167 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-11-18 16:20:09,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:20:09,168 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-18 16:20:09,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 16:20:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-18 16:20:09,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 16:20:09,168 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:20:09,168 INFO L375 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:20:09,169 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:20:09,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:20:09,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1126058196, now seen corresponding path program 2 times [2018-11-18 16:20:09,169 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:20:09,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:20:09,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:20:09,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:20:09,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:20:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:20:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 16:20:09,266 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:20:09,266 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:20:09,273 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 16:20:09,286 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 16:20:09,286 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 16:20:09,288 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:20:09,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:20:09,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 16:20:09,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2018-11-18 16:20:09,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 16:20:09,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 16:20:09,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-18 16:20:09,379 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 11 states. [2018-11-18 16:20:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:20:09,483 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-18 16:20:09,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 16:20:09,483 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2018-11-18 16:20:09,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:20:09,483 INFO L225 Difference]: With dead ends: 19 [2018-11-18 16:20:09,483 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:20:09,484 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-11-18 16:20:09,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:20:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:20:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:20:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:20:09,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-18 16:20:09,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:20:09,485 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:20:09,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 16:20:09,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:20:09,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:20:09,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:20:09,546 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:20:09,546 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:20:09,546 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:20:09,546 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:20:09,546 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 0 ~__return_72~0) (<= ~__return_72~0 0)) [2018-11-18 16:20:09,546 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:20:09,547 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:20:09,547 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 8 65) the Hoare annotation is: (or (< 0 |old(~__return_72~0)|) (< |old(~__return_72~0)| 0) (and (<= 0 ~__return_72~0) (<= ~__return_72~0 0))) [2018-11-18 16:20:09,547 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 65) no Hoare annotation was computed. [2018-11-18 16:20:09,547 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2018-11-18 16:20:09,547 INFO L425 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-11-18 16:20:09,547 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2018-11-18 16:20:09,547 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2018-11-18 16:20:09,547 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 65) no Hoare annotation was computed. [2018-11-18 16:20:09,547 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2018-11-18 16:20:09,547 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2018-11-18 16:20:09,547 INFO L421 ceAbstractionStarter]: At program point L35(lines 25 63) the Hoare annotation is: (or (< 0 |old(~__return_72~0)|) (< |old(~__return_72~0)| 0) (let ((.cse1 (+ main_~main__i~0 main_~main__y~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0))) (and (<= .cse0 .cse1) (<= 0 ~__return_72~0) (<= .cse1 .cse0) (<= ~__return_72~0 0)))) [2018-11-18 16:20:09,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:20:09 BoogieIcfgContainer [2018-11-18 16:20:09,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:20:09,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:20:09,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:20:09,556 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:20:09,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:20:08" (3/4) ... [2018-11-18 16:20:09,559 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:20:09,563 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:20:09,563 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:20:09,565 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 16:20:09,566 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 16:20:09,583 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (0 < \old(__return_72) || \old(__return_72) < 0) || (((main__j + main__x <= main__i + main__y && 0 <= __return_72) && main__i + main__y <= main__j + main__x) && __return_72 <= 0) [2018-11-18 16:20:09,597 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a060e8e6-3ca3-40c0-b313-712fdf539e7d/bin-2019/uautomizer/witness.graphml [2018-11-18 16:20:09,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:20:09,598 INFO L168 Benchmark]: Toolchain (without parser) took 1587.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 959.2 MB in the beginning and 966.5 MB in the end (delta: -7.2 MB). Peak memory consumption was 128.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:09,599 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:20:09,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.21 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:09,600 INFO L168 Benchmark]: Boogie Preprocessor took 16.14 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:09,600 INFO L168 Benchmark]: RCFGBuilder took 184.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:09,600 INFO L168 Benchmark]: TraceAbstraction took 1189.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.2 MB in the end (delta: 152.6 MB). Peak memory consumption was 152.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:09,601 INFO L168 Benchmark]: Witness Printer took 41.64 ms. Allocated memory is still 1.2 GB. Free memory was 969.2 MB in the beginning and 966.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:20:09,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.21 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.14 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 184.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1189.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.2 MB in the end (delta: 152.6 MB). Peak memory consumption was 152.6 MB. Max. memory is 11.5 GB. * Witness Printer took 41.64 ms. Allocated memory is still 1.2 GB. Free memory was 969.2 MB in the beginning and 966.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 25]: Loop Invariant Derived loop invariant: (0 < \old(__return_72) || \old(__return_72) < 0) || (((main__j + main__x <= main__i + main__y && 0 <= __return_72) && main__i + main__y <= main__j + main__x) && __return_72 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 41 SDslu, 121 SDs, 0 SdLazy, 120 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 9 NumberOfFragments, 55 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 123 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 4507 SizeOfPredicates, 12 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...