java -Xmx8000000000 -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 ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gcnr2008_false-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:52:32,854 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:52:32,856 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:52:32,868 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:52:32,868 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:52:32,869 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:52:32,870 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:52:32,872 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:52:32,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:52:32,882 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:52:32,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:52:32,884 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:52:32,884 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:52:32,886 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:52:32,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:52:32,887 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:52:32,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:52:32,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:52:32,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:52:32,894 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:52:32,895 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:52:32,896 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:52:32,898 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-06 22:52:32,907 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:52:32,936 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:52:32,937 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:52:32,938 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:52:32,938 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:52:32,939 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:52:32,939 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:52:32,939 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:52:32,939 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:52:32,940 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:52:32,941 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:52:32,941 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:52:32,941 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:52:32,941 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:52:32,941 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:52:32,942 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:52:32,942 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:52:32,942 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:52:32,942 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:52:32,942 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:52:32,944 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:52:32,944 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:52:32,944 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:52:32,944 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:52:32,944 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:52:32,945 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:52:32,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:52:32,945 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:52:32,945 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:52:33,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:52:33,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:52:33,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:52:33,022 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:52:33,022 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:52:33,023 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gcnr2008_false-unreach-call_false-termination.i [2018-11-06 22:52:33,086 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815839b0a/17e4e5593be74afd9200344956ea53d3/FLAGc83f48ec3 [2018-11-06 22:52:33,540 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:52:33,541 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gcnr2008_false-unreach-call_false-termination.i [2018-11-06 22:52:33,548 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815839b0a/17e4e5593be74afd9200344956ea53d3/FLAGc83f48ec3 [2018-11-06 22:52:33,568 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815839b0a/17e4e5593be74afd9200344956ea53d3 [2018-11-06 22:52:33,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:52:33,582 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:52:33,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:52:33,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:52:33,588 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:52:33,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6698ba59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33, skipping insertion in model container [2018-11-06 22:52:33,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:52:33,629 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:52:33,833 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:52:33,836 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:52:33,857 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:52:33,872 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:52:33,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33 WrapperNode [2018-11-06 22:52:33,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:52:33,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:52:33,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:52:33,873 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:52:33,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:52:33,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:52:33,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:52:33,908 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:52:33,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (1/1) ... [2018-11-06 22:52:33,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:52:33,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:52:33,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:52:33,938 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:52:33,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (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 [2018-11-06 22:52:34,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:52:34,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:52:34,363 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:52:34,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:52:34 BoogieIcfgContainer [2018-11-06 22:52:34,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:52:34,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:52:34,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:52:34,373 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:52:34,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:52:33" (1/3) ... [2018-11-06 22:52:34,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644c6722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:52:34, skipping insertion in model container [2018-11-06 22:52:34,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:33" (2/3) ... [2018-11-06 22:52:34,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644c6722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:52:34, skipping insertion in model container [2018-11-06 22:52:34,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:52:34" (3/3) ... [2018-11-06 22:52:34,378 INFO L112 eAbstractionObserver]: Analyzing ICFG gcnr2008_false-unreach-call_false-termination.i [2018-11-06 22:52:34,396 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:52:34,409 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:52:34,424 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:52:34,459 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:52:34,460 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:52:34,460 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:52:34,460 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:52:34,460 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:52:34,461 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:52:34,461 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:52:34,461 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:52:34,461 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:52:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-06 22:52:34,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-06 22:52:34,483 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:52:34,484 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-11-06 22:52:34,487 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:52:34,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:52:34,493 INFO L82 PathProgramCache]: Analyzing trace with hash 890522599, now seen corresponding path program 1 times [2018-11-06 22:52:34,495 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:52:34,498 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:52:34,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:52:34,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:52:34,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:52:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:52:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:52:34,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:52:34,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 22:52:34,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-06 22:52:34,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-06 22:52:34,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:52:34,618 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-11-06 22:52:34,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:52:34,636 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2018-11-06 22:52:34,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-06 22:52:34,637 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-11-06 22:52:34,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:52:34,649 INFO L225 Difference]: With dead ends: 26 [2018-11-06 22:52:34,650 INFO L226 Difference]: Without dead ends: 14 [2018-11-06 22:52:34,653 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:52:34,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-06 22:52:34,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-06 22:52:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-06 22:52:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2018-11-06 22:52:34,689 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 6 [2018-11-06 22:52:34,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:52:34,689 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-11-06 22:52:34,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-06 22:52:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-11-06 22:52:34,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-06 22:52:34,690 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:52:34,691 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:52:34,691 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:52:34,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:52:34,691 INFO L82 PathProgramCache]: Analyzing trace with hash 147083492, now seen corresponding path program 1 times [2018-11-06 22:52:34,692 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:52:34,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:52:34,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:52:34,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:52:34,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:52:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-06 22:52:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-06 22:52:34,735 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-06 22:52:34,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:52:34 BoogieIcfgContainer [2018-11-06 22:52:34,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:52:34,758 INFO L168 Benchmark]: Toolchain (without parser) took 1177.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -730.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:52:34,760 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:52:34,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-06 22:52:34,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.73 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:52:34,763 INFO L168 Benchmark]: Boogie Preprocessor took 29.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:52:34,764 INFO L168 Benchmark]: RCFGBuilder took 426.06 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-11-06 22:52:34,765 INFO L168 Benchmark]: TraceAbstraction took 387.37 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2018-11-06 22:52:34,769 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 34.73 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 426.06 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 387.37 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int x,y,z,w; [L12] EXPR w = 0 [L12] EXPR z = w = 0 [L12] EXPR y = z = w = 0 [L12] x = y = z = w = 0 [L13] COND FALSE !(__VERIFIER_nondet_int() && y < 10000) [L28] CALL __VERIFIER_assert(x >= 4 && y <= 2) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 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...