./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/1_3_true-termination.c_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/1_3_true-termination.c_false-unreach-call.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 c11ac37b43be66e9ce0dd54a8292c8a5449b189d ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 09:32:24,451 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 09:32:24,453 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 09:32:24,465 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 09:32:24,466 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 09:32:24,467 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 09:32:24,468 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 09:32:24,470 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 09:32:24,472 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 09:32:24,473 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 09:32:24,474 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 09:32:24,474 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 09:32:24,475 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 09:32:24,476 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 09:32:24,478 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 09:32:24,478 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 09:32:24,480 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 09:32:24,482 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 09:32:24,484 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 09:32:24,486 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 09:32:24,487 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 09:32:24,488 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 09:32:24,491 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 09:32:24,491 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 09:32:24,492 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 09:32:24,493 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 09:32:24,494 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 09:32:24,495 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 09:32:24,496 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 09:32:24,497 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 09:32:24,497 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 09:32:24,499 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 09:32:24,499 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 09:32:24,499 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 09:32:24,500 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 09:32:24,501 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 09:32:24,502 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 09:32:24,517 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 09:32:24,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 09:32:24,518 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 09:32:24,519 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 09:32:24,519 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 09:32:24,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 09:32:24,520 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 09:32:24,520 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 09:32:24,520 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 09:32:24,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 09:32:24,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 09:32:24,521 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 09:32:24,521 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 09:32:24,521 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 09:32:24,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 09:32:24,521 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 09:32:24,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 09:32:24,522 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 09:32:24,523 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 09:32:24,523 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 09:32:24,524 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 09:32:24,524 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 09:32:24,524 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 09:32:24,525 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 09:32:24,525 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 09:32:24,525 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 09:32:24,525 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 09:32:24,525 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 09:32:24,525 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 -> c11ac37b43be66e9ce0dd54a8292c8a5449b189d [2019-01-12 09:32:24,562 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 09:32:24,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 09:32:24,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 09:32:24,591 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 09:32:24,592 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 09:32:24,593 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/1_3_true-termination.c_false-unreach-call.i [2019-01-12 09:32:24,656 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1638f184/e5eecc905215467c833464f6b4b37f05/FLAG64a0ff71d [2019-01-12 09:32:25,092 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 09:32:25,092 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/1_3_true-termination.c_false-unreach-call.i [2019-01-12 09:32:25,099 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1638f184/e5eecc905215467c833464f6b4b37f05/FLAG64a0ff71d [2019-01-12 09:32:25,457 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1638f184/e5eecc905215467c833464f6b4b37f05 [2019-01-12 09:32:25,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 09:32:25,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 09:32:25,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 09:32:25,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 09:32:25,468 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 09:32:25,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1149a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25, skipping insertion in model container [2019-01-12 09:32:25,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 09:32:25,501 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 09:32:25,724 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:32:25,745 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 09:32:25,769 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:32:25,792 INFO L195 MainTranslator]: Completed translation [2019-01-12 09:32:25,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25 WrapperNode [2019-01-12 09:32:25,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 09:32:25,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 09:32:25,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 09:32:25,795 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 09:32:25,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 09:32:25,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 09:32:25,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 09:32:25,848 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 09:32:25,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (1/1) ... [2019-01-12 09:32:25,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 09:32:25,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 09:32:25,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 09:32:25,885 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 09:32:25,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (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 [2019-01-12 09:32:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 09:32:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-12 09:32:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 09:32:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 09:32:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 09:32:26,481 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 09:32:26,481 INFO L286 CfgBuilder]: Removed 16 assue(true) statements. [2019-01-12 09:32:26,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:32:26 BoogieIcfgContainer [2019-01-12 09:32:26,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 09:32:26,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 09:32:26,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 09:32:26,487 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 09:32:26,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 09:32:25" (1/3) ... [2019-01-12 09:32:26,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4b5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:32:26, skipping insertion in model container [2019-01-12 09:32:26,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:32:25" (2/3) ... [2019-01-12 09:32:26,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4b5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:32:26, skipping insertion in model container [2019-01-12 09:32:26,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:32:26" (3/3) ... [2019-01-12 09:32:26,490 INFO L112 eAbstractionObserver]: Analyzing ICFG 1_3_true-termination.c_false-unreach-call.i [2019-01-12 09:32:26,501 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 09:32:26,508 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-12 09:32:26,531 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-12 09:32:26,573 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 09:32:26,574 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 09:32:26,574 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 09:32:26,574 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 09:32:26,574 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 09:32:26,574 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 09:32:26,575 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 09:32:26,576 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 09:32:26,576 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 09:32:26,593 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-01-12 09:32:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 09:32:26,604 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:32:26,605 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 09:32:26,606 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:32:26,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:32:26,611 INFO L82 PathProgramCache]: Analyzing trace with hash 889476007, now seen corresponding path program 1 times [2019-01-12 09:32:26,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 09:32:26,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 09:32:26,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:32:26,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:32:26,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:32:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:32:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:32:26,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:32:26,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 09:32:26,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 09:32:26,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 09:32:26,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-12 09:32:26,835 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2019-01-12 09:32:26,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:32:26,954 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-01-12 09:32:26,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 09:32:26,956 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-01-12 09:32:26,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:32:26,965 INFO L225 Difference]: With dead ends: 27 [2019-01-12 09:32:26,966 INFO L226 Difference]: Without dead ends: 10 [2019-01-12 09:32:26,969 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-12 09:32:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-12 09:32:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-01-12 09:32:26,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-12 09:32:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2019-01-12 09:32:27,002 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2019-01-12 09:32:27,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:32:27,002 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2019-01-12 09:32:27,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 09:32:27,002 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2019-01-12 09:32:27,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 09:32:27,003 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:32:27,003 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:32:27,004 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:32:27,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:32:27,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1570200632, now seen corresponding path program 1 times [2019-01-12 09:32:27,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 09:32:27,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 09:32:27,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:32:27,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:32:27,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:32:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 09:32:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 09:32:27,082 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 09:32:27,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 09:32:27 BoogieIcfgContainer [2019-01-12 09:32:27,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 09:32:27,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 09:32:27,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 09:32:27,113 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 09:32:27,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:32:26" (3/4) ... [2019-01-12 09:32:27,116 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 09:32:27,163 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 09:32:27,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 09:32:27,165 INFO L168 Benchmark]: Toolchain (without parser) took 1703.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -132.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-01-12 09:32:27,167 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. [2019-01-12 09:32:27,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.94 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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. [2019-01-12 09:32:27,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.21 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. [2019-01-12 09:32:27,169 INFO L168 Benchmark]: Boogie Preprocessor took 37.05 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 09:32:27,171 INFO L168 Benchmark]: RCFGBuilder took 597.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-01-12 09:32:27,171 INFO L168 Benchmark]: TraceAbstraction took 628.77 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-01-12 09:32:27,172 INFO L168 Benchmark]: Witness Printer took 51.17 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-01-12 09:32:27,178 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 329.94 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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 53.21 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 37.05 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 597.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 628.77 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Witness Printer took 51.17 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] rr * ptr1 = 0; [L31] rr * r = (rr *)malloc(sizeof *r); [L32] r -> state = 0 [L33] return r; [L38] rr * r = getrr(); [L39] r -> state = 1 [L40] return r; [L52] ptr1 = getPtr() [L45] EXPR ptr -> state [L45] (ptr -> state == 1) ? (0) : __blast_assert () [L46] ptr -> state = 2 [L45] EXPR ptr -> state [L45] (ptr -> state == 1) ? (0) : __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 3 SDslu, 14 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...