./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77773b6d98c13684866533d0b64942a0b1025f7d ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:18:02,194 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:18:02,197 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:18:02,212 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:18:02,212 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:18:02,213 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:18:02,214 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:18:02,217 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:18:02,218 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:18:02,219 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:18:02,220 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:18:02,220 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:18:02,221 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:18:02,222 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:18:02,224 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:18:02,224 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:18:02,225 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:18:02,227 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:18:02,229 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:18:02,231 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:18:02,232 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:18:02,233 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:18:02,235 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:18:02,235 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:18:02,236 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:18:02,236 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:18:02,238 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:18:02,238 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:18:02,239 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:18:02,240 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:18:02,240 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:18:02,241 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:18:02,241 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:18:02,241 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:18:02,243 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:18:02,244 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:18:02,244 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:18:02,263 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:18:02,264 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:18:02,265 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:18:02,265 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:18:02,265 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:18:02,269 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:18:02,269 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:18:02,269 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:18:02,269 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:18:02,269 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:18:02,270 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:18:02,270 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:18:02,270 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:18:02,270 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:18:02,270 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:18:02,270 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:18:02,272 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:18:02,273 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:18:02,273 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:18:02,273 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:18:02,273 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:18:02,273 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:18:02,273 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:18:02,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:18:02,275 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:18:02,275 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:18:02,275 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:18:02,275 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:18:02,276 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:18:02,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:18:02,276 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 -> 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 -> 77773b6d98c13684866533d0b64942a0b1025f7d [2018-11-28 18:18:02,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:18:02,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:18:02,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:18:02,360 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:18:02,360 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:18:02,361 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-28 18:18:02,420 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c76e1a30c/88f9e4aa2f4d42c89be614efe5748ae0/FLAG72c7595c0 [2018-11-28 18:18:02,856 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:18:02,856 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-28 18:18:02,863 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c76e1a30c/88f9e4aa2f4d42c89be614efe5748ae0/FLAG72c7595c0 [2018-11-28 18:18:03,224 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c76e1a30c/88f9e4aa2f4d42c89be614efe5748ae0 [2018-11-28 18:18:03,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:18:03,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:18:03,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:18:03,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:18:03,236 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:18:03,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f203e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03, skipping insertion in model container [2018-11-28 18:18:03,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:18:03,271 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:18:03,501 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:18:03,506 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:18:03,531 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:18:03,549 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:18:03,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03 WrapperNode [2018-11-28 18:18:03,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:18:03,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:18:03,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:18:03,551 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:18:03,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:18:03,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:18:03,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:18:03,577 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:18:03,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... [2018-11-28 18:18:03,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:18:03,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:18:03,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:18:03,616 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:18:03,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-28 18:18:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:18:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:18:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:18:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:18:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:18:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:18:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 18:18:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 18:18:04,036 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:18:04,036 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 18:18:04,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:18:04 BoogieIcfgContainer [2018-11-28 18:18:04,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:18:04,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:18:04,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:18:04,041 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:18:04,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:18:03" (1/3) ... [2018-11-28 18:18:04,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629a9042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:18:04, skipping insertion in model container [2018-11-28 18:18:04,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:03" (2/3) ... [2018-11-28 18:18:04,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629a9042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:18:04, skipping insertion in model container [2018-11-28 18:18:04,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:18:04" (3/3) ... [2018-11-28 18:18:04,044 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2018-11-28 18:18:04,054 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:18:04,062 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:18:04,079 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:18:04,115 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:18:04,115 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:18:04,115 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:18:04,116 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:18:04,116 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:18:04,116 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:18:04,116 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:18:04,116 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:18:04,116 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:18:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-28 18:18:04,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 18:18:04,139 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:18:04,140 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:18:04,143 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:18:04,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:18:04,148 INFO L82 PathProgramCache]: Analyzing trace with hash 2111920953, now seen corresponding path program 1 times [2018-11-28 18:18:04,150 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:18:04,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:18:04,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:04,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:18:04,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:18:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:18:04,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:18:04,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:18:04,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:18:04,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:18:04,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:18:04,298 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-28 18:18:04,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:18:04,321 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2018-11-28 18:18:04,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:18:04,322 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-28 18:18:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:18:04,331 INFO L225 Difference]: With dead ends: 35 [2018-11-28 18:18:04,331 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 18:18:04,335 INFO L631 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 [2018-11-28 18:18:04,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 18:18:04,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 18:18:04,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 18:18:04,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-28 18:18:04,372 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14 [2018-11-28 18:18:04,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:18:04,372 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-28 18:18:04,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:18:04,373 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-28 18:18:04,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 18:18:04,373 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:18:04,374 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:18:04,374 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:18:04,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:18:04,375 INFO L82 PathProgramCache]: Analyzing trace with hash 2102685743, now seen corresponding path program 1 times [2018-11-28 18:18:04,375 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:18:04,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:18:04,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:04,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:18:04,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:18:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:18:04,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:18:04,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:18:04,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:18:04,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:18:04,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:18:04,607 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 6 states. [2018-11-28 18:18:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:18:04,783 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-28 18:18:04,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:18:04,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-28 18:18:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:18:04,785 INFO L225 Difference]: With dead ends: 22 [2018-11-28 18:18:04,786 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 18:18:04,787 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:18:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 18:18:04,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-28 18:18:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 18:18:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-28 18:18:04,791 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14 [2018-11-28 18:18:04,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:18:04,793 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-28 18:18:04,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:18:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-28 18:18:04,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 18:18:04,794 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:18:04,794 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:18:04,794 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:18:04,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:18:04,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1145559190, now seen corresponding path program 1 times [2018-11-28 18:18:04,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:18:04,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:18:04,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:04,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:18:04,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:18:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:18:05,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:18:05,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:18:05,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:18:05,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:18:05,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:18:05,117 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 7 states. [2018-11-28 18:18:05,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:18:05,279 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-28 18:18:05,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:18:05,280 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-11-28 18:18:05,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:18:05,281 INFO L225 Difference]: With dead ends: 19 [2018-11-28 18:18:05,281 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:18:05,282 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:18:05,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:18:05,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:18:05,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:18:05,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:18:05,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-28 18:18:05,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:18:05,283 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:18:05,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:18:05,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:18:05,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:18:05,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:18:05,370 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 18:18:05,371 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:18:05,371 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:18:05,371 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:18:05,371 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:18:05,372 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:18:05,372 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 35) no Hoare annotation was computed. [2018-11-28 18:18:05,372 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-28 18:18:05,372 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 21 30) the Hoare annotation is: (or (and (< 100 main_~z~0) (< 99 main_~x~0)) (and (<= main_~x~0 98) (<= main_~z~0 100))) [2018-11-28 18:18:05,372 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-28 18:18:05,372 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 35) no Hoare annotation was computed. [2018-11-28 18:18:05,372 INFO L448 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-11-28 18:18:05,373 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 35) the Hoare annotation is: true [2018-11-28 18:18:05,373 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2018-11-28 18:18:05,373 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 21 30) the Hoare annotation is: (or (< 100 main_~z~0) (<= main_~x~0 98)) [2018-11-28 18:18:05,373 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 18:18:05,373 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-28 18:18:05,373 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-11-28 18:18:05,373 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-11-28 18:18:05,374 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-28 18:18:05,375 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-11-28 18:18:05,375 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-28 18:18:05,375 INFO L448 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-11-28 18:18:05,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:18:05 BoogieIcfgContainer [2018-11-28 18:18:05,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:18:05,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:18:05,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:18:05,394 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:18:05,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:18:04" (3/4) ... [2018-11-28 18:18:05,398 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:18:05,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:18:05,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:18:05,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 18:18:05,411 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 18:18:05,412 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 18:18:05,412 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:18:05,471 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:18:05,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:18:05,475 INFO L168 Benchmark]: Toolchain (without parser) took 2246.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -86.2 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:05,478 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:18:05,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:05,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.68 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:18:05,482 INFO L168 Benchmark]: Boogie Preprocessor took 38.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:18:05,482 INFO L168 Benchmark]: RCFGBuilder took 421.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -152.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:05,483 INFO L168 Benchmark]: TraceAbstraction took 1355.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:05,486 INFO L168 Benchmark]: Witness Printer took 80.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:05,492 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 25.68 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 421.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -152.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1355.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. * Witness Printer took 80.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 21]: Loop Invariant Derived loop invariant: 100 < z || x <= 98 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 8 SDslu, 74 SDs, 0 SdLazy, 67 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 843 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...