./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/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 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 20:03:52,454 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:03:52,455 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:03:52,465 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:03:52,465 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:03:52,466 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:03:52,467 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:03:52,468 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:03:52,469 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:03:52,471 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:03:52,471 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:03:52,471 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:03:52,472 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:03:52,473 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:03:52,473 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:03:52,475 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:03:52,475 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:03:52,477 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:03:52,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:03:52,480 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:03:52,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:03:52,481 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:03:52,483 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:03:52,484 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:03:52,484 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:03:52,485 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:03:52,485 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:03:52,486 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:03:52,487 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:03:52,487 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:03:52,488 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:03:52,488 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:03:52,488 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:03:52,488 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:03:52,489 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:03:52,491 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:03:52,491 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 20:03:52,502 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:03:52,502 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:03:52,503 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:03:52,503 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 20:03:52,503 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 20:03:52,503 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 20:03:52,503 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 20:03:52,504 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:03:52,504 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:03:52,504 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:03:52,504 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:03:52,504 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:03:52,504 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:03:52,504 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:03:52,505 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:03:52,505 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:03:52,505 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:03:52,505 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:03:52,505 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:03:52,505 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:03:52,505 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:03:52,506 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:03:52,508 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:03:52,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:03:52,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:03:52,508 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:03:52,508 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 20:03:52,508 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:03:52,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:03:52,509 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_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/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 -> 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 [2018-10-26 20:03:52,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:03:52,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:03:52,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:03:52,553 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:03:52,553 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:03:52,554 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/../../sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-10-26 20:03:52,603 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/data/63eefbc61/b3be09b655034f248c2dd288f18c0d08/FLAG5137ee96e [2018-10-26 20:03:52,936 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:03:52,937 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-10-26 20:03:52,942 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/data/63eefbc61/b3be09b655034f248c2dd288f18c0d08/FLAG5137ee96e [2018-10-26 20:03:52,954 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/data/63eefbc61/b3be09b655034f248c2dd288f18c0d08 [2018-10-26 20:03:52,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:03:52,959 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 20:03:52,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:03:52,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:03:52,963 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:03:52,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:03:52" (1/1) ... [2018-10-26 20:03:52,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4eb8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:52, skipping insertion in model container [2018-10-26 20:03:52,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:03:52" (1/1) ... [2018-10-26 20:03:52,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:03:52,992 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:03:53,098 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:03:53,101 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:03:53,109 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:03:53,120 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:03:53,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53 WrapperNode [2018-10-26 20:03:53,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:03:53,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:03:53,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:03:53,122 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:03:53,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53" (1/1) ... [2018-10-26 20:03:53,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53" (1/1) ... [2018-10-26 20:03:53,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53" (1/1) ... [2018-10-26 20:03:53,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53" (1/1) ... [2018-10-26 20:03:53,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53" (1/1) ... [2018-10-26 20:03:53,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53" (1/1) ... [2018-10-26 20:03:53,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53" (1/1) ... [2018-10-26 20:03:53,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:03:53,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:03:53,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:03:53,147 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:03:53,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/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 [2018-10-26 20:03:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:03:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:03:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 20:03:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:03:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 20:03:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-10-26 20:03:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 20:03:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-26 20:03:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:03:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:03:53,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:03:53,539 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:03:53,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:03:53 BoogieIcfgContainer [2018-10-26 20:03:53,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:03:53,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:03:53,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:03:53,543 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:03:53,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:03:52" (1/3) ... [2018-10-26 20:03:53,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a6d1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:03:53, skipping insertion in model container [2018-10-26 20:03:53,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:03:53" (2/3) ... [2018-10-26 20:03:53,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a6d1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:03:53, skipping insertion in model container [2018-10-26 20:03:53,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:03:53" (3/3) ... [2018-10-26 20:03:53,547 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_variant_true-unreach-call_true-termination.i [2018-10-26 20:03:53,558 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:03:53,567 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:03:53,583 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:03:53,615 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 20:03:53,616 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:03:53,616 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:03:53,616 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:03:53,616 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:03:53,616 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:03:53,617 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:03:53,617 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:03:53,617 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:03:53,640 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-10-26 20:03:53,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 20:03:53,644 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:03:53,645 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:03:53,651 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:03:53,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:03:53,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1350619, now seen corresponding path program 1 times [2018-10-26 20:03:53,662 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:03:53,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:03:53,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:03:53,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:03:53,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:03:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:03:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:03:53,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:03:53,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 20:03:53,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 20:03:54,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 20:03:54,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 20:03:54,004 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2018-10-26 20:03:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:03:54,157 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2018-10-26 20:03:54,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 20:03:54,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-26 20:03:54,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:03:54,164 INFO L225 Difference]: With dead ends: 43 [2018-10-26 20:03:54,165 INFO L226 Difference]: Without dead ends: 23 [2018-10-26 20:03:54,167 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 20:03:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-26 20:03:54,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-10-26 20:03:54,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-26 20:03:54,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-10-26 20:03:54,198 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2018-10-26 20:03:54,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:03:54,199 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-10-26 20:03:54,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 20:03:54,199 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-10-26 20:03:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 20:03:54,199 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:03:54,200 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:03:54,200 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:03:54,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:03:54,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1691970717, now seen corresponding path program 1 times [2018-10-26 20:03:54,200 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:03:54,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:03:54,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:03:54,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:03:54,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:03:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:03:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:03:54,296 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:03:54,296 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/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 [2018-10-26 20:03:54,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:03:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:03:54,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:03:54,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:03:54,487 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 20:03:54,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2018-10-26 20:03:54,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 20:03:54,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 20:03:54,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-26 20:03:54,488 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2018-10-26 20:03:54,688 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 6 [2018-10-26 20:03:54,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:03:54,786 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-10-26 20:03:54,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 20:03:54,787 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-10-26 20:03:54,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:03:54,788 INFO L225 Difference]: With dead ends: 33 [2018-10-26 20:03:54,788 INFO L226 Difference]: Without dead ends: 31 [2018-10-26 20:03:54,789 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-10-26 20:03:54,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-26 20:03:54,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-10-26 20:03:54,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-10-26 20:03:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-10-26 20:03:54,794 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 19 [2018-10-26 20:03:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:03:54,794 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-10-26 20:03:54,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 20:03:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-10-26 20:03:54,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 20:03:54,795 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:03:54,796 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:03:54,796 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:03:54,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:03:54,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1146463393, now seen corresponding path program 2 times [2018-10-26 20:03:54,796 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:03:54,797 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:03:54,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:03:54,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:03:54,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:03:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:03:55,008 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 20:03:55,009 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:03:55,009 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/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 [2018-10-26 20:03:55,024 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-26 20:03:55,036 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 20:03:55,036 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 20:03:55,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:03:55,108 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 20:03:55,124 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 20:03:55,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2018-10-26 20:03:55,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-26 20:03:55,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-26 20:03:55,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-10-26 20:03:55,126 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 13 states. [2018-10-26 20:03:55,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:03:55,448 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-10-26 20:03:55,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 20:03:55,448 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2018-10-26 20:03:55,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:03:55,449 INFO L225 Difference]: With dead ends: 37 [2018-10-26 20:03:55,449 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 20:03:55,449 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-26 20:03:55,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 20:03:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 20:03:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 20:03:55,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 20:03:55,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-10-26 20:03:55,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:03:55,450 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 20:03:55,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-26 20:03:55,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 20:03:55,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 20:03:55,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 20:03:55,537 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 20:03:55,538 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:03:55,538 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:03:55,538 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 20:03:55,538 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:03:55,538 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:03:55,538 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 16) the Hoare annotation is: true [2018-10-26 20:03:55,538 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 16) no Hoare annotation was computed. [2018-10-26 20:03:55,538 INFO L421 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (<= main_~i~0 999999) [2018-10-26 20:03:55,538 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 16) no Hoare annotation was computed. [2018-10-26 20:03:55,538 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 12 14) no Hoare annotation was computed. [2018-10-26 20:03:55,539 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2018-10-26 20:03:55,539 INFO L421 ceAbstractionStarter]: At program point L12-3(lines 12 14) the Hoare annotation is: (<= main_~i~0 1000000) [2018-10-26 20:03:55,539 INFO L425 ceAbstractionStarter]: For program point L12-4(lines 12 14) no Hoare annotation was computed. [2018-10-26 20:03:55,539 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-26 20:03:55,539 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 20:03:55,539 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-26 20:03:55,539 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 20:03:55,539 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 20:03:55,539 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-26 20:03:55,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:03:55 BoogieIcfgContainer [2018-10-26 20:03:55,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:03:55,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:03:55,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:03:55,548 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:03:55,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:03:53" (3/4) ... [2018-10-26 20:03:55,551 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 20:03:55,556 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 20:03:55,556 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 20:03:55,556 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 20:03:55,559 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-26 20:03:55,559 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 20:03:55,559 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 20:03:55,593 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_91da71d7-0ce6-427d-ad97-ac59ae5ec6ef/bin-2019/uautomizer/witness.graphml [2018-10-26 20:03:55,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:03:55,594 INFO L168 Benchmark]: Toolchain (without parser) took 2636.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -116.1 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2018-10-26 20:03:55,595 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:03:55,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.26 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 943.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:03:55,596 INFO L168 Benchmark]: Boogie Preprocessor took 24.66 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:03:55,596 INFO L168 Benchmark]: RCFGBuilder took 393.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 943.6 MB in the beginning and 1.2 GB in the end (delta: -227.3 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:03:55,597 INFO L168 Benchmark]: TraceAbstraction took 2006.74 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: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 11.5 GB. [2018-10-26 20:03:55,597 INFO L168 Benchmark]: Witness Printer took 46.16 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. [2018-10-26 20:03:55,599 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.26 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 943.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.66 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 393.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 943.6 MB in the beginning and 1.2 GB in the end (delta: -227.3 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2006.74 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: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 11.5 GB. * Witness Printer took 46.16 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: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 37 SDslu, 146 SDs, 0 SdLazy, 128 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 20 NumberOfFragments, 11 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 4718 SizeOfPredicates, 4 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 20/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...