./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i --full-output --rcfgbuilder.size.of.a.code.block LoopFreeBlock --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0210da8c Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i ../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43bf08ab7eab650af2134651dc434d79e4859447 --rcfgbuilder.size.of.a.code.block LoopFreeBlock ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0210da8 [2018-10-22 10:18:51,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 10:18:51,541 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 10:18:51,555 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 10:18:51,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 10:18:51,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 10:18:51,558 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 10:18:51,560 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 10:18:51,562 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 10:18:51,563 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 10:18:51,564 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 10:18:51,564 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 10:18:51,566 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 10:18:51,567 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 10:18:51,568 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 10:18:51,569 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 10:18:51,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 10:18:51,572 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 10:18:51,574 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 10:18:51,576 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 10:18:51,577 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 10:18:51,578 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 10:18:51,581 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 10:18:51,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 10:18:51,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 10:18:51,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 10:18:51,584 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 10:18:51,585 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 10:18:51,586 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 10:18:51,588 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 10:18:51,588 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 10:18:51,589 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 10:18:51,589 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 10:18:51,589 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 10:18:51,590 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 10:18:51,591 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 10:18:51,591 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 10:18:51,615 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 10:18:51,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 10:18:51,617 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 10:18:51,618 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 10:18:51,618 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 10:18:51,618 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 10:18:51,618 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 10:18:51,618 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 10:18:51,619 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 10:18:51,619 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 10:18:51,619 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 10:18:51,619 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 10:18:51,620 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 10:18:51,620 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 10:18:51,620 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 10:18:51,620 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 10:18:51,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 10:18:51,620 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 10:18:51,621 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 10:18:51,621 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 10:18:51,621 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 10:18:51,621 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 10:18:51,621 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 10:18:51,622 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 10:18:51,622 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 10:18:51,622 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 10:18:51,622 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 10:18:51,622 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 10:18:51,622 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 10:18:51,623 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 10:18:51,623 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 10:18:51,623 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 10:18:51,623 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 10:18:51,623 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 10:18:51,623 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43bf08ab7eab650af2134651dc434d79e4859447 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock [2018-10-22 10:18:51,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 10:18:51,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 10:18:51,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 10:18:51,702 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 10:18:51,702 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 10:18:51,703 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-10-22 10:18:51,774 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2cd4f4221/44755c45ca424c79b60dec3bab2b4c54/FLAG521440edc [2018-10-22 10:18:52,263 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 10:18:52,264 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-10-22 10:18:52,275 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2cd4f4221/44755c45ca424c79b60dec3bab2b4c54/FLAG521440edc [2018-10-22 10:18:52,293 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2cd4f4221/44755c45ca424c79b60dec3bab2b4c54 [2018-10-22 10:18:52,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 10:18:52,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 10:18:52,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 10:18:52,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 10:18:52,303 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 10:18:52,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470950e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52, skipping insertion in model container [2018-10-22 10:18:52,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 10:18:52,342 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 10:18:52,566 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 10:18:52,570 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 10:18:52,589 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 10:18:52,610 INFO L193 MainTranslator]: Completed translation [2018-10-22 10:18:52,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52 WrapperNode [2018-10-22 10:18:52,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 10:18:52,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 10:18:52,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 10:18:52,612 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 10:18:52,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 10:18:52,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 10:18:52,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 10:18:52,635 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 10:18:52,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... [2018-10-22 10:18:52,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 10:18:52,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 10:18:52,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 10:18:52,665 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 10:18:52,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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 [2018-10-22 10:18:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 10:18:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 10:18:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 10:18:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 10:18:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 10:18:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 10:18:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 10:18:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 10:18:53,156 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 10:18:53,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:18:53 BoogieIcfgContainer [2018-10-22 10:18:53,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 10:18:53,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 10:18:53,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 10:18:53,162 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 10:18:53,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 10:18:52" (1/3) ... [2018-10-22 10:18:53,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ff0c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:18:53, skipping insertion in model container [2018-10-22 10:18:53,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:18:52" (2/3) ... [2018-10-22 10:18:53,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ff0c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:18:53, skipping insertion in model container [2018-10-22 10:18:53,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:18:53" (3/3) ... [2018-10-22 10:18:53,166 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_true-unreach-call_true-termination.i [2018-10-22 10:18:53,175 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 10:18:53,181 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 10:18:53,197 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 10:18:53,238 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 10:18:53,239 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 10:18:53,239 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 10:18:53,239 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 10:18:53,239 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 10:18:53,239 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 10:18:53,239 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 10:18:53,240 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 10:18:53,240 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 10:18:53,262 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-22 10:18:53,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-22 10:18:53,268 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:18:53,269 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 10:18:53,272 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:18:53,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:18:53,281 INFO L82 PathProgramCache]: Analyzing trace with hash 563245249, now seen corresponding path program 1 times [2018-10-22 10:18:53,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:18:53,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:18:53,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:18:53,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:18:53,330 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:18:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:18:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 10:18:53,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 10:18:53,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 10:18:53,386 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:18:53,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 10:18:53,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 10:18:53,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 10:18:53,410 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-10-22 10:18:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:18:53,432 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-10-22 10:18:53,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 10:18:53,434 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-10-22 10:18:53,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:18:53,443 INFO L225 Difference]: With dead ends: 29 [2018-10-22 10:18:53,443 INFO L226 Difference]: Without dead ends: 12 [2018-10-22 10:18:53,447 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 10:18:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-22 10:18:53,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-22 10:18:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-22 10:18:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-22 10:18:53,486 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-10-22 10:18:53,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:18:53,486 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-22 10:18:53,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 10:18:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-10-22 10:18:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-22 10:18:53,487 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:18:53,487 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 10:18:53,488 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:18:53,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:18:53,488 INFO L82 PathProgramCache]: Analyzing trace with hash -496423, now seen corresponding path program 1 times [2018-10-22 10:18:53,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:18:53,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:18:53,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:18:53,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:18:53,490 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:18:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:18:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 10:18:53,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 10:18:53,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 10:18:53,550 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:18:53,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 10:18:53,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 10:18:53,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 10:18:53,552 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2018-10-22 10:18:53,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:18:53,580 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-10-22 10:18:53,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 10:18:53,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-22 10:18:53,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:18:53,582 INFO L225 Difference]: With dead ends: 19 [2018-10-22 10:18:53,583 INFO L226 Difference]: Without dead ends: 14 [2018-10-22 10:18:53,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 10:18:53,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-22 10:18:53,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-22 10:18:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-22 10:18:53,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-22 10:18:53,588 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-10-22 10:18:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:18:53,588 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-22 10:18:53,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 10:18:53,589 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-22 10:18:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 10:18:53,589 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:18:53,590 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 10:18:53,590 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:18:53,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:18:53,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1349310151, now seen corresponding path program 1 times [2018-10-22 10:18:53,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:18:53,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:18:53,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:18:53,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:18:53,592 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:18:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:18:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 10:18:53,741 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 10:18:53,741 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 10:18:53,742 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-10-22 10:18:53,744 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [22], [25], [27], [33], [34], [35], [37], [40] [2018-10-22 10:18:53,817 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 10:18:53,818 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 10:18:54,009 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 10:18:54,011 INFO L272 AbstractInterpreter]: Visited 11 different actions 29 times. Merged at 2 different actions 12 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-10-22 10:18:54,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:18:54,019 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 10:18:54,076 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-10-22 10:18:54,076 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 10:18:54,188 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 10:18:54,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 10:18:54,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2018-10-22 10:18:54,190 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:18:54,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-22 10:18:54,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-22 10:18:54,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-22 10:18:54,193 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-10-22 10:18:54,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:18:54,312 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-10-22 10:18:54,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-22 10:18:54,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-10-22 10:18:54,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:18:54,313 INFO L225 Difference]: With dead ends: 14 [2018-10-22 10:18:54,313 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 10:18:54,314 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-22 10:18:54,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 10:18:54,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 10:18:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 10:18:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 10:18:54,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-10-22 10:18:54,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:18:54,315 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 10:18:54,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-22 10:18:54,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 10:18:54,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 10:18:54,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 10:18:54,421 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-22 10:18:54,421 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 10:18:54,422 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 10:18:54,422 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 10:18:54,422 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 10:18:54,422 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 10:18:54,422 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 15) the Hoare annotation is: true [2018-10-22 10:18:54,422 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 15) no Hoare annotation was computed. [2018-10-22 10:18:54,422 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-22 10:18:54,423 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 15) no Hoare annotation was computed. [2018-10-22 10:18:54,423 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-22 10:18:54,423 INFO L425 ceAbstractionStarter]: For program point L12-3(line 12) no Hoare annotation was computed. [2018-10-22 10:18:54,423 INFO L421 ceAbstractionStarter]: At program point L12-4(line 12) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= 0 .cse0) (<= .cse0 2000000))) [2018-10-22 10:18:54,423 INFO L421 ceAbstractionStarter]: At program point L12-5(line 12) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 2000000) (<= 2000000 .cse0))) [2018-10-22 10:18:54,424 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 10:18:54,426 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 10:18:54,426 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 10:18:54,426 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 10:18:54,426 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 10:18:54,426 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 10:18:54,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 10:18:54 BoogieIcfgContainer [2018-10-22 10:18:54,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 10:18:54,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 10:18:54,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 10:18:54,438 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 10:18:54,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:18:53" (3/4) ... [2018-10-22 10:18:54,444 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-22 10:18:54,450 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-22 10:18:54,451 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-22 10:18:54,451 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-22 10:18:54,455 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-22 10:18:54,456 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-22 10:18:54,456 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-22 10:18:54,500 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 10:18:54,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 10:18:54,501 INFO L168 Benchmark]: Toolchain (without parser) took 2204.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -104.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-10-22 10:18:54,503 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:18:54,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.63 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-22 10:18:54,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.71 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:18:54,505 INFO L168 Benchmark]: Boogie Preprocessor took 28.85 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:18:54,506 INFO L168 Benchmark]: RCFGBuilder took 493.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-10-22 10:18:54,507 INFO L168 Benchmark]: TraceAbstraction took 1278.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. [2018-10-22 10:18:54,508 INFO L168 Benchmark]: Witness Printer took 62.94 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. [2018-10-22 10:18:54,512 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 312.63 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.71 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.85 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 493.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1278.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. * Witness Printer took 62.94 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: 0 <= 2 * i && 2 * i <= 2000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 2 SDslu, 28 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.875 AbsIntWeakeningRatio, 0.3333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 0.5 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 15 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 461 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...