java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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 0.1.23-8c3fbe1 [2018-10-22 15:50:39,419 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:50:39,421 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:50:39,433 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:50:39,434 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:50:39,435 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:50:39,436 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:50:39,438 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:50:39,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:50:39,440 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:50:39,441 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:50:39,441 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:50:39,442 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:50:39,443 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:50:39,444 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:50:39,445 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:50:39,446 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:50:39,448 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:50:39,450 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:50:39,451 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:50:39,453 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:50:39,454 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:50:39,456 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-22 15:50:39,465 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-22 15:50:39,480 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:50:39,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:50:39,481 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:50:39,481 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:50:39,482 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:50:39,482 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:50:39,482 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:50:39,483 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:50:39,483 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:50:39,483 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:50:39,483 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:50:39,483 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:50:39,484 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:50:39,484 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:50:39,484 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:50:39,484 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:50:39,485 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:50:39,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:50:39,485 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:50:39,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:50:39,485 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:50:39,485 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:50:39,486 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:50:39,486 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:50:39,486 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:50:39,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:50:39,486 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:50:39,487 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:50:39,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:50:39,556 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:50:39,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:50:39,563 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:50:39,563 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:50:39,564 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/gcnr2008_false-unreach-call_false-termination.i [2018-10-22 15:50:39,631 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5e3984680/e82729bf25bb4938ad8e260d4ec8843b/FLAG05c11b9d9 [2018-10-22 15:50:40,105 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:50:40,106 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gcnr2008_false-unreach-call_false-termination.i [2018-10-22 15:50:40,112 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5e3984680/e82729bf25bb4938ad8e260d4ec8843b/FLAG05c11b9d9 [2018-10-22 15:50:40,125 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5e3984680/e82729bf25bb4938ad8e260d4ec8843b [2018-10-22 15:50:40,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:50:40,136 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:50:40,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:50:40,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:50:40,142 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:50:40,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f04af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40, skipping insertion in model container [2018-10-22 15:50:40,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:50:40,176 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:50:40,379 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:50:40,383 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:50:40,416 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:50:40,435 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:50:40,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40 WrapperNode [2018-10-22 15:50:40,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:50:40,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:50:40,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:50:40,437 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:50:40,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:50:40,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:50:40,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:50:40,480 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:50:40,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... [2018-10-22 15:50:40,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:50:40,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:50:40,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:50:40,512 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:50:40,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:50:40,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:50:40,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:50:40,970 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:50:40,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:50:40 BoogieIcfgContainer [2018-10-22 15:50:40,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:50:40,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:50:40,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:50:40,975 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:50:40,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:50:40" (1/3) ... [2018-10-22 15:50:40,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b01e6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:50:40, skipping insertion in model container [2018-10-22 15:50:40,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:40" (2/3) ... [2018-10-22 15:50:40,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b01e6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:50:40, skipping insertion in model container [2018-10-22 15:50:40,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:50:40" (3/3) ... [2018-10-22 15:50:40,979 INFO L112 eAbstractionObserver]: Analyzing ICFG gcnr2008_false-unreach-call_false-termination.i [2018-10-22 15:50:40,989 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:50:40,998 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:50:41,023 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:50:41,055 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:50:41,055 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:50:41,055 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:50:41,056 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:50:41,056 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:50:41,056 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:50:41,056 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:50:41,056 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:50:41,056 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:50:41,071 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-22 15:50:41,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-22 15:50:41,078 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:41,079 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-22 15:50:41,081 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:41,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:41,088 INFO L82 PathProgramCache]: Analyzing trace with hash 890522599, now seen corresponding path program 1 times [2018-10-22 15:50:41,090 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:41,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:41,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:41,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:41,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:41,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:50:41,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:50:41,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:50:41,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:50:41,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:50:41,234 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-10-22 15:50:41,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:41,252 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2018-10-22 15:50:41,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:50:41,254 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-10-22 15:50:41,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:41,266 INFO L225 Difference]: With dead ends: 26 [2018-10-22 15:50:41,267 INFO L226 Difference]: Without dead ends: 14 [2018-10-22 15:50:41,270 INFO L605 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 [2018-10-22 15:50:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-22 15:50:41,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-22 15:50:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-22 15:50:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2018-10-22 15:50:41,308 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 6 [2018-10-22 15:50:41,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:41,309 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-10-22 15:50:41,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:50:41,309 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-10-22 15:50:41,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-22 15:50:41,310 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:41,310 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:41,311 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:41,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:41,311 INFO L82 PathProgramCache]: Analyzing trace with hash 147083492, now seen corresponding path program 1 times [2018-10-22 15:50:41,311 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:41,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:41,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:41,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:41,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 15:50:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 15:50:41,365 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-22 15:50:41,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:50:41 BoogieIcfgContainer [2018-10-22 15:50:41,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:50:41,390 INFO L168 Benchmark]: Toolchain (without parser) took 1255.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -758.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:50:41,392 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:50:41,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.74 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. [2018-10-22 15:50:41,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.05 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. [2018-10-22 15:50:41,395 INFO L168 Benchmark]: Boogie Preprocessor took 31.98 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. [2018-10-22 15:50:41,396 INFO L168 Benchmark]: RCFGBuilder took 458.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:41,397 INFO L168 Benchmark]: TraceAbstraction took 417.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:41,403 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.74 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 42.05 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 31.98 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 458.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 417.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 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...