./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/test29_true-unreach-call_true-termination.c --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/ldv-regression/test29_true-unreach-call_true-termination.c -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 5a0b8f7221e31cc2cda01831098deec15967e67b .................................................................................................................................................................................................................................................................................................................................................... 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 18:08:16,448 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:08:16,450 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:08:16,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:08:16,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:08:16,473 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:08:16,476 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:08:16,480 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:08:16,483 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:08:16,484 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:08:16,486 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:08:16,487 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:08:16,488 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:08:16,490 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:08:16,498 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:08:16,499 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:08:16,499 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:08:16,504 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:08:16,509 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:08:16,511 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:08:16,512 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:08:16,514 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:08:16,516 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:08:16,516 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:08:16,516 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:08:16,517 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:08:16,519 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:08:16,520 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:08:16,520 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:08:16,523 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:08:16,523 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:08:16,527 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:08:16,529 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:08:16,529 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:08:16,530 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:08:16,531 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:08:16,532 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:08:16,557 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:08:16,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:08:16,559 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:08:16,560 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:08:16,561 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:08:16,561 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:08:16,561 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:08:16,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:08:16,561 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:08:16,563 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:08:16,563 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:08:16,563 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:08:16,563 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:08:16,564 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:08:16,564 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:08:16,564 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:08:16,564 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:08:16,564 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:08:16,564 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:08:16,566 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:08:16,566 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:08:16,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:08:16,567 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:08:16,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:08:16,567 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:08:16,567 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:08:16,567 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:08:16,567 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:08:16,568 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:08:16,568 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:08:16,568 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 -> 5a0b8f7221e31cc2cda01831098deec15967e67b [2018-11-28 18:08:16,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:08:16,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:08:16,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:08:16,654 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:08:16,654 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:08:16,655 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/test29_true-unreach-call_true-termination.c [2018-11-28 18:08:16,712 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5c64976/cd3884bfa9f14337bc148af46f156c2f/FLAGa91615ca0 [2018-11-28 18:08:17,176 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:08:17,176 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/test29_true-unreach-call_true-termination.c [2018-11-28 18:08:17,183 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5c64976/cd3884bfa9f14337bc148af46f156c2f/FLAGa91615ca0 [2018-11-28 18:08:17,520 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5c64976/cd3884bfa9f14337bc148af46f156c2f [2018-11-28 18:08:17,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:08:17,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:08:17,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:08:17,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:08:17,533 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:08:17,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b94ef99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17, skipping insertion in model container [2018-11-28 18:08:17,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:08:17,571 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:08:17,822 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:08:17,845 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:08:17,870 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:08:17,891 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:08:17,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17 WrapperNode [2018-11-28 18:08:17,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:08:17,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:08:17,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:08:17,893 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:08:17,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:08:17,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:08:17,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:08:17,924 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:08:17,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (1/1) ... [2018-11-28 18:08:17,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:08:17,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:08:17,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:08:17,954 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:08:17,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (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 18:08:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:08:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:08:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:08:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:08:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:08:18,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:08:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:08:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:08:18,083 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:08:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:08:18,448 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:08:18,448 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 18:08:18,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:08:18 BoogieIcfgContainer [2018-11-28 18:08:18,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:08:18,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:08:18,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:08:18,455 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:08:18,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:08:17" (1/3) ... [2018-11-28 18:08:18,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bdfdfee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:08:18, skipping insertion in model container [2018-11-28 18:08:18,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:08:17" (2/3) ... [2018-11-28 18:08:18,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bdfdfee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:08:18, skipping insertion in model container [2018-11-28 18:08:18,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:08:18" (3/3) ... [2018-11-28 18:08:18,460 INFO L112 eAbstractionObserver]: Analyzing ICFG test29_true-unreach-call_true-termination.c [2018-11-28 18:08:18,471 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:08:18,480 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:08:18,499 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:08:18,533 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:08:18,534 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:08:18,535 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:08:18,535 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:08:18,536 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:08:18,536 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:08:18,537 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:08:18,537 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:08:18,537 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:08:18,558 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-28 18:08:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 18:08:18,564 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:08:18,566 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:08:18,568 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:08:18,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:08:18,574 INFO L82 PathProgramCache]: Analyzing trace with hash 668850033, now seen corresponding path program 1 times [2018-11-28 18:08:18,576 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:08:18,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:08:18,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:08:18,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:08:18,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:08:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:08:18,830 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 18:08:18,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:08:18,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 18:08:18,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 18:08:18,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 18:08:18,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:08:18,852 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-11-28 18:08:18,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:08:18,969 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2018-11-28 18:08:18,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 18:08:18,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-28 18:08:18,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:08:18,981 INFO L225 Difference]: With dead ends: 34 [2018-11-28 18:08:18,981 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 18:08:18,984 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:08:19,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 18:08:19,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2018-11-28 18:08:19,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 18:08:19,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-28 18:08:19,022 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2018-11-28 18:08:19,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:08:19,022 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-28 18:08:19,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 18:08:19,023 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-28 18:08:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 18:08:19,023 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:08:19,023 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:08:19,024 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:08:19,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:08:19,024 INFO L82 PathProgramCache]: Analyzing trace with hash 667002991, now seen corresponding path program 1 times [2018-11-28 18:08:19,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:08:19,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:08:19,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:08:19,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:08:19,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:08:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:08:19,268 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 18:08:19,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:08:19,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:08:19,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:08:19,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:08:19,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:08:19,271 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 7 states. [2018-11-28 18:08:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:08:19,646 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-28 18:08:19,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:08:19,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 18:08:19,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:08:19,647 INFO L225 Difference]: With dead ends: 23 [2018-11-28 18:08:19,648 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 18:08:19,649 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:08:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 18:08:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-28 18:08:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 18:08:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-11-28 18:08:19,654 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2018-11-28 18:08:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:08:19,654 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-11-28 18:08:19,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:08:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-11-28 18:08:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 18:08:19,655 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:08:19,655 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:08:19,657 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:08:19,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:08:19,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1851109901, now seen corresponding path program 1 times [2018-11-28 18:08:19,657 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:08:19,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:08:19,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:08:19,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:08:19,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:08:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:08:19,870 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 18:08:19,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:08:19,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:08:19,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:08:19,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:08:19,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:08:19,873 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 7 states. [2018-11-28 18:08:20,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:08:20,027 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2018-11-28 18:08:20,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:08:20,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 18:08:20,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:08:20,029 INFO L225 Difference]: With dead ends: 14 [2018-11-28 18:08:20,029 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:08:20,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:08:20,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:08:20,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:08:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:08:20,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:08:20,031 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-28 18:08:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:08:20,033 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:08:20,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:08:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:08:20,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:08:20,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:08:20,054 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:08:20,054 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:08:20,054 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:08:20,055 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:08:20,055 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:08:20,055 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:08:20,055 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:08:20,055 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2018-11-28 18:08:20,055 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-28 18:08:20,055 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 21 23) no Hoare annotation was computed. [2018-11-28 18:08:20,056 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-28 18:08:20,057 INFO L448 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2018-11-28 18:08:20,057 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2018-11-28 18:08:20,057 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: true [2018-11-28 18:08:20,057 INFO L444 ceAbstractionStarter]: At program point L22(lines 12 29) the Hoare annotation is: false [2018-11-28 18:08:20,058 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2018-11-28 18:08:20,058 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2018-11-28 18:08:20,059 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 16 20) no Hoare annotation was computed. [2018-11-28 18:08:20,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:08:20 BoogieIcfgContainer [2018-11-28 18:08:20,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:08:20,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:08:20,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:08:20,068 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:08:20,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:08:18" (3/4) ... [2018-11-28 18:08:20,074 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:08:20,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:08:20,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:08:20,088 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-28 18:08:20,088 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 18:08:20,089 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:08:20,089 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:08:20,141 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:08:20,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:08:20,142 INFO L168 Benchmark]: Toolchain (without parser) took 2616.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -105.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:08:20,144 INFO L168 Benchmark]: CDTParser took 0.16 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 18:08:20,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.50 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:08:20,145 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.36 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:08:20,145 INFO L168 Benchmark]: Boogie Preprocessor took 28.59 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:08:20,146 INFO L168 Benchmark]: RCFGBuilder took 496.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:08:20,147 INFO L168 Benchmark]: TraceAbstraction took 1616.08 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: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:08:20,148 INFO L168 Benchmark]: Witness Printer took 73.87 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. [2018-11-28 18:08:20,152 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 364.50 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 30.36 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.59 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 496.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1616.08 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: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. * Witness Printer took 73.87 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: 27]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 28 SDslu, 72 SDs, 0 SdLazy, 73 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s 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, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...