./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-sets/test_add_false-unreach-call_true-termination.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-sets/test_add_false-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 278390a66d79c26df0bb9007834f9da647c0b479 ............................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2019-01-14 16:18:53,772 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 16:18:53,775 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 16:18:53,792 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 16:18:53,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 16:18:53,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 16:18:53,795 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 16:18:53,798 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 16:18:53,799 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 16:18:53,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 16:18:53,802 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 16:18:53,802 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 16:18:53,803 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 16:18:53,804 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 16:18:53,806 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 16:18:53,806 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 16:18:53,808 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 16:18:53,810 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 16:18:53,812 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 16:18:53,814 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 16:18:53,816 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 16:18:53,817 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 16:18:53,819 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 16:18:53,820 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 16:18:53,820 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 16:18:53,821 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 16:18:53,822 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 16:18:53,823 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 16:18:53,824 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 16:18:53,825 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 16:18:53,826 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 16:18:53,827 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 16:18:53,827 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 16:18:53,827 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 16:18:53,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 16:18:53,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 16:18:53,830 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 16:18:53,845 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 16:18:53,845 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 16:18:53,846 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 16:18:53,846 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 16:18:53,847 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 16:18:53,847 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 16:18:53,848 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 16:18:53,848 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 16:18:53,848 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 16:18:53,848 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 16:18:53,848 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 16:18:53,848 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 16:18:53,849 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 16:18:53,850 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 16:18:53,850 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 16:18:53,850 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 16:18:53,850 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 16:18:53,850 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 16:18:53,851 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 16:18:53,851 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 16:18:53,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 16:18:53,851 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 16:18:53,851 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 16:18:53,851 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 16:18:53,852 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 16:18:53,853 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 16:18:53,853 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 16:18:53,854 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 -> 278390a66d79c26df0bb9007834f9da647c0b479 [2019-01-14 16:18:53,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 16:18:53,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 16:18:53,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 16:18:53,922 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 16:18:53,922 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 16:18:53,923 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-sets/test_add_false-unreach-call_true-termination.i [2019-01-14 16:18:53,989 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c17b5461/197ca02932e24132a53f8f148ef1f87c/FLAG10b12d638 [2019-01-14 16:18:54,535 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 16:18:54,535 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-sets/test_add_false-unreach-call_true-termination.i [2019-01-14 16:18:54,556 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c17b5461/197ca02932e24132a53f8f148ef1f87c/FLAG10b12d638 [2019-01-14 16:18:54,807 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c17b5461/197ca02932e24132a53f8f148ef1f87c [2019-01-14 16:18:54,813 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 16:18:54,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 16:18:54,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 16:18:54,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 16:18:54,827 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 16:18:54,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:18:54" (1/1) ... [2019-01-14 16:18:54,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a508bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:54, skipping insertion in model container [2019-01-14 16:18:54,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:18:54" (1/1) ... [2019-01-14 16:18:54,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 16:18:54,927 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 16:18:55,381 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 16:18:55,393 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 16:18:55,548 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 16:18:55,626 INFO L195 MainTranslator]: Completed translation [2019-01-14 16:18:55,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55 WrapperNode [2019-01-14 16:18:55,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 16:18:55,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 16:18:55,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 16:18:55,629 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 16:18:55,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (1/1) ... [2019-01-14 16:18:55,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (1/1) ... [2019-01-14 16:18:55,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 16:18:55,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 16:18:55,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 16:18:55,685 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 16:18:55,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (1/1) ... [2019-01-14 16:18:55,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (1/1) ... [2019-01-14 16:18:55,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (1/1) ... [2019-01-14 16:18:55,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (1/1) ... [2019-01-14 16:18:55,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (1/1) ... [2019-01-14 16:18:55,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (1/1) ... [2019-01-14 16:18:55,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (1/1) ... [2019-01-14 16:18:55,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 16:18:55,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 16:18:55,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 16:18:55,732 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 16:18:55,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (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 [2019-01-14 16:18:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 16:18:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 16:18:55,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-14 16:18:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-14 16:18:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 16:18:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-14 16:18:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-14 16:18:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 16:18:55,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 16:18:56,332 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 16:18:56,333 INFO L286 CfgBuilder]: Removed 20 assue(true) statements. [2019-01-14 16:18:56,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:18:56 BoogieIcfgContainer [2019-01-14 16:18:56,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 16:18:56,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 16:18:56,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 16:18:56,340 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 16:18:56,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 04:18:54" (1/3) ... [2019-01-14 16:18:56,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27219622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 04:18:56, skipping insertion in model container [2019-01-14 16:18:56,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:18:55" (2/3) ... [2019-01-14 16:18:56,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27219622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 04:18:56, skipping insertion in model container [2019-01-14 16:18:56,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:18:56" (3/3) ... [2019-01-14 16:18:56,348 INFO L112 eAbstractionObserver]: Analyzing ICFG test_add_false-unreach-call_true-termination.i [2019-01-14 16:18:56,360 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 16:18:56,369 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 16:18:56,387 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 16:18:56,416 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 16:18:56,416 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 16:18:56,416 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 16:18:56,417 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 16:18:56,417 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 16:18:56,417 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 16:18:56,417 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 16:18:56,417 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 16:18:56,417 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 16:18:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-01-14 16:18:56,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 16:18:56,437 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:18:56,438 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:18:56,440 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:18:56,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:18:56,446 INFO L82 PathProgramCache]: Analyzing trace with hash -923442845, now seen corresponding path program 1 times [2019-01-14 16:18:56,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:18:56,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:18:56,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:56,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:18:56,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:18:56,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:18:56,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:18:56,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 16:18:56,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-14 16:18:56,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-14 16:18:56,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 16:18:56,596 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-01-14 16:18:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:18:56,609 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-01-14 16:18:56,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 16:18:56,611 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-01-14 16:18:56,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:18:56,621 INFO L225 Difference]: With dead ends: 41 [2019-01-14 16:18:56,622 INFO L226 Difference]: Without dead ends: 19 [2019-01-14 16:18:56,625 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 [2019-01-14 16:18:56,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-14 16:18:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-01-14 16:18:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-14 16:18:56,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-01-14 16:18:56,662 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2019-01-14 16:18:56,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:18:56,663 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-01-14 16:18:56,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-14 16:18:56,663 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-01-14 16:18:56,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 16:18:56,664 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:18:56,664 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:18:56,664 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:18:56,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:18:56,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1228046979, now seen corresponding path program 1 times [2019-01-14 16:18:56,665 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:18:56,665 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:18:56,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:56,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:18:56,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:18:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:18:56,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:18:56,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 16:18:56,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 16:18:56,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 16:18:56,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 16:18:56,762 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 4 states. [2019-01-14 16:18:56,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:18:56,971 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2019-01-14 16:18:56,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 16:18:56,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-01-14 16:18:56,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:18:56,974 INFO L225 Difference]: With dead ends: 37 [2019-01-14 16:18:56,974 INFO L226 Difference]: Without dead ends: 28 [2019-01-14 16:18:56,976 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 [2019-01-14 16:18:56,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-01-14 16:18:56,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2019-01-14 16:18:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-14 16:18:56,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-01-14 16:18:56,981 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2019-01-14 16:18:56,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:18:56,982 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-01-14 16:18:56,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 16:18:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-01-14 16:18:56,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 16:18:56,983 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:18:56,984 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:18:56,985 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:18:56,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:18:56,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1885213511, now seen corresponding path program 1 times [2019-01-14 16:18:56,985 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:18:56,985 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:18:56,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:56,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:18:56,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:18:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:18:57,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:18:57,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 16:18:57,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 16:18:57,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 16:18:57,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 16:18:57,090 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 4 states. [2019-01-14 16:18:57,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:18:57,320 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-01-14 16:18:57,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 16:18:57,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-01-14 16:18:57,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:18:57,323 INFO L225 Difference]: With dead ends: 28 [2019-01-14 16:18:57,323 INFO L226 Difference]: Without dead ends: 23 [2019-01-14 16:18:57,324 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 [2019-01-14 16:18:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-01-14 16:18:57,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-01-14 16:18:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-14 16:18:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-01-14 16:18:57,330 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 12 [2019-01-14 16:18:57,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:18:57,332 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-01-14 16:18:57,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 16:18:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2019-01-14 16:18:57,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 16:18:57,333 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:18:57,333 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:18:57,333 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:18:57,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:18:57,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1883604797, now seen corresponding path program 1 times [2019-01-14 16:18:57,334 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:18:57,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:18:57,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:57,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:18:57,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:18:57,620 WARN L181 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 17 [2019-01-14 16:18:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:18:57,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:18:57,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 16:18:57,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 16:18:57,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 16:18:57,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 16:18:57,625 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2019-01-14 16:18:57,868 WARN L181 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-01-14 16:18:57,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:18:57,931 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2019-01-14 16:18:57,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 16:18:57,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-01-14 16:18:57,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:18:57,933 INFO L225 Difference]: With dead ends: 34 [2019-01-14 16:18:57,933 INFO L226 Difference]: Without dead ends: 16 [2019-01-14 16:18:57,934 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 16:18:57,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-14 16:18:57,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-14 16:18:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-14 16:18:57,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-01-14 16:18:57,939 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2019-01-14 16:18:57,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:18:57,939 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-01-14 16:18:57,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 16:18:57,939 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-01-14 16:18:57,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-14 16:18:57,940 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:18:57,940 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:18:57,940 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:18:57,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:18:57,941 INFO L82 PathProgramCache]: Analyzing trace with hash 2055661832, now seen corresponding path program 1 times [2019-01-14 16:18:57,941 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:18:57,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:18:57,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:57,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:18:57,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:18:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 16:18:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 16:18:58,055 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 16:18:58,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 04:18:58 BoogieIcfgContainer [2019-01-14 16:18:58,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 16:18:58,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 16:18:58,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 16:18:58,107 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 16:18:58,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:18:56" (3/4) ... [2019-01-14 16:18:58,111 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 16:18:58,173 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 16:18:58,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 16:18:58,174 INFO L168 Benchmark]: Toolchain (without parser) took 3360.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.4 MB in the beginning and 998.6 MB in the end (delta: -47.2 MB). Peak memory consumption was 74.9 MB. Max. memory is 11.5 GB. [2019-01-14 16:18:58,175 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. [2019-01-14 16:18:58,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-01-14 16:18:58,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.02 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. [2019-01-14 16:18:58,177 INFO L168 Benchmark]: Boogie Preprocessor took 46.69 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. [2019-01-14 16:18:58,177 INFO L168 Benchmark]: RCFGBuilder took 602.70 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-01-14 16:18:58,178 INFO L168 Benchmark]: TraceAbstraction took 1771.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.6 MB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. [2019-01-14 16:18:58,179 INFO L168 Benchmark]: Witness Printer took 65.91 ms. Allocated memory is still 1.2 GB. Free memory is still 998.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 16:18:58,183 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 808.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.02 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. * Boogie Preprocessor took 46.69 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. * RCFGBuilder took 602.70 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1771.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.6 MB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. * Witness Printer took 65.91 ms. Allocated memory is still 1.2 GB. Free memory is still 998.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 654]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L649] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [s1={-1:0}] [L652] int j = __VERIFIER_nondet_int(); [L638] struct ldv_list_element *m; [L639] EXPR (s)->next [L639] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L639] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-1:0}] [L639] COND FALSE !(&m->list != (s)) VAL [s1={-1:0}] [L644] return 0; VAL [s1={-1:0}] [L620] COND TRUE !ldv_is_in_set(new, s) [L621] struct ldv_list_element *le; [L563] void *ptr = malloc(size); [L565] return ptr; VAL [s1={-1:0}] [L622] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L623] le->e = new [L592] head->next [L580] next->prev = new [L581] new->next = next [L582] new->prev = prev [L583] prev->next = new VAL [s1={-1:0}] [L638] struct ldv_list_element *m; [L639] EXPR (s)->next [L639] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L639] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-1:0}] [L639] COND TRUE &m->list != (s) [L640] EXPR m->e VAL [s1={-1:0}] [L640] COND TRUE m->e == e [L641] return 1; VAL [s1={-1:0}] [L654] COND TRUE ldv_is_in_set(j, &s1) [L654] __VERIFIER_error() VAL [s1={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. UNSAFE Result, 1.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 82 SDtfs, 21 SDslu, 81 SDs, 0 SdLazy, 39 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s 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, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 935 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...