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-invgen/id_trans_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 11:55:34,581 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 11:55:34,583 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 11:55:34,598 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 11:55:34,599 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 11:55:34,600 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 11:55:34,601 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 11:55:34,606 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 11:55:34,611 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 11:55:34,612 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 11:55:34,615 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 11:55:34,615 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 11:55:34,617 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 11:55:34,618 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 11:55:34,621 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 11:55:34,622 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 11:55:34,623 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 11:55:34,626 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 11:55:34,633 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 11:55:34,638 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 11:55:34,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 11:55:34,644 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 11:55:34,646 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 11:55:34,650 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 11:55:34,650 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 11:55:34,651 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 11:55:34,655 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 11:55:34,656 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 11:55:34,657 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 11:55:34,658 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 11:55:34,658 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 11:55:34,659 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 11:55:34,664 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 [2018-10-24 11:55:34,691 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 11:55:34,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 11:55:34,692 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 11:55:34,692 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 11:55:34,693 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 11:55:34,693 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 11:55:34,693 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 11:55:34,694 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 11:55:34,694 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 11:55:34,694 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 11:55:34,694 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 11:55:34,694 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 11:55:34,695 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 11:55:34,695 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 11:55:34,695 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 11:55:34,695 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 11:55:34,695 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 11:55:34,696 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 11:55:34,696 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 11:55:34,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 11:55:34,696 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 11:55:34,697 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 11:55:34,697 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 11:55:34,697 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 11:55:34,697 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 11:55:34,697 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 11:55:34,698 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 11:55:34,698 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 11:55:34,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 11:55:34,753 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 11:55:34,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 11:55:34,758 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 11:55:34,759 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 11:55:34,759 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/id_trans_false-unreach-call_true-termination.i [2018-10-24 11:55:34,821 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/eadd3a75f/0ad3a68148764edea97271e963d649b2/FLAG68a67bcaf [2018-10-24 11:55:35,220 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 11:55:35,221 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_trans_false-unreach-call_true-termination.i [2018-10-24 11:55:35,227 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/eadd3a75f/0ad3a68148764edea97271e963d649b2/FLAG68a67bcaf [2018-10-24 11:55:35,240 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/eadd3a75f/0ad3a68148764edea97271e963d649b2 [2018-10-24 11:55:35,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 11:55:35,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 11:55:35,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 11:55:35,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 11:55:35,256 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 11:55:35,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618e506f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35, skipping insertion in model container [2018-10-24 11:55:35,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 11:55:35,291 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 11:55:35,505 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:55:35,508 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 11:55:35,527 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:55:35,545 INFO L193 MainTranslator]: Completed translation [2018-10-24 11:55:35,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35 WrapperNode [2018-10-24 11:55:35,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 11:55:35,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 11:55:35,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 11:55:35,548 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 11:55:35,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 11:55:35,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 11:55:35,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 11:55:35,584 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 11:55:35,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (1/1) ... [2018-10-24 11:55:35,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 11:55:35,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 11:55:35,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 11:55:35,607 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 11:55:35,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (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 [2018-10-24 11:55:35,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 11:55:35,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 11:55:35,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 11:55:35,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 11:55:35,991 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 11:55:35,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:55:35 BoogieIcfgContainer [2018-10-24 11:55:35,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 11:55:35,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 11:55:35,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 11:55:35,996 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 11:55:35,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:55:35" (1/3) ... [2018-10-24 11:55:35,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69007a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:55:35, skipping insertion in model container [2018-10-24 11:55:35,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:55:35" (2/3) ... [2018-10-24 11:55:35,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69007a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:55:35, skipping insertion in model container [2018-10-24 11:55:35,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:55:35" (3/3) ... [2018-10-24 11:55:36,000 INFO L112 eAbstractionObserver]: Analyzing ICFG id_trans_false-unreach-call_true-termination.i [2018-10-24 11:55:36,011 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 11:55:36,019 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 11:55:36,037 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 11:55:36,084 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 11:55:36,085 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 11:55:36,085 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 11:55:36,085 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 11:55:36,085 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 11:55:36,085 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 11:55:36,085 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 11:55:36,086 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 11:55:36,086 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 11:55:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-10-24 11:55:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-24 11:55:36,116 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:55:36,117 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:55:36,119 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:55:36,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:55:36,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1242646656, now seen corresponding path program 1 times [2018-10-24 11:55:36,127 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:55:36,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:55:36,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:55:36,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:55:36,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:55:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:55:36,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:55:36,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:55:36,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 11:55:36,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 11:55:36,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 11:55:36,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:55:36,369 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2018-10-24 11:55:36,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:55:36,572 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2018-10-24 11:55:36,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 11:55:36,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-10-24 11:55:36,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:55:36,587 INFO L225 Difference]: With dead ends: 44 [2018-10-24 11:55:36,587 INFO L226 Difference]: Without dead ends: 20 [2018-10-24 11:55:36,592 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 11:55:36,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-24 11:55:36,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-10-24 11:55:36,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-24 11:55:36,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-10-24 11:55:36,648 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2018-10-24 11:55:36,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:55:36,649 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-10-24 11:55:36,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 11:55:36,649 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-10-24 11:55:36,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-24 11:55:36,651 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:55:36,652 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:55:36,652 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:55:36,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:55:36,652 INFO L82 PathProgramCache]: Analyzing trace with hash 592660159, now seen corresponding path program 1 times [2018-10-24 11:55:36,653 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:55:36,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:55:36,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:55:36,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:55:36,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:55:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:55:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:55:37,069 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 11:55:37,070 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 11:55:37,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:55:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:55:37,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:55:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:55:37,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 11:55:37,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2018-10-24 11:55:37,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 11:55:37,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 11:55:37,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-10-24 11:55:37,406 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 10 states. [2018-10-24 11:55:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:55:37,721 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-10-24 11:55:37,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 11:55:37,721 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2018-10-24 11:55:37,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:55:37,722 INFO L225 Difference]: With dead ends: 26 [2018-10-24 11:55:37,723 INFO L226 Difference]: Without dead ends: 24 [2018-10-24 11:55:37,724 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-10-24 11:55:37,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-10-24 11:55:37,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-10-24 11:55:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-24 11:55:37,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-10-24 11:55:37,730 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2018-10-24 11:55:37,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:55:37,731 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-10-24 11:55:37,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 11:55:37,731 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-10-24 11:55:37,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-24 11:55:37,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:55:37,732 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:55:37,733 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:55:37,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:55:37,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1612432159, now seen corresponding path program 1 times [2018-10-24 11:55:37,733 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:55:37,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:55:37,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:55:37,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:55:37,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:55:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-24 11:55:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-24 11:55:37,788 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-24 11:55:37,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:55:37 BoogieIcfgContainer [2018-10-24 11:55:37,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 11:55:37,812 INFO L168 Benchmark]: Toolchain (without parser) took 2562.31 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: -699.2 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2018-10-24 11:55:37,815 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-24 11:55:37,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.00 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. [2018-10-24 11:55:37,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.61 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. [2018-10-24 11:55:37,817 INFO L168 Benchmark]: Boogie Preprocessor took 22.51 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. [2018-10-24 11:55:37,818 INFO L168 Benchmark]: RCFGBuilder took 385.28 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: -776.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-24 11:55:37,819 INFO L168 Benchmark]: TraceAbstraction took 1818.91 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: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2018-10-24 11:55:37,824 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.00 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 36.61 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 22.51 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 385.28 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: -776.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1818.91 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: 67.1 MB). Peak memory consumption was 67.1 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 idBitLength, material_length, nlen; [L12] int j, k; [L13] nlen = __VERIFIER_nondet_int() [L14] idBitLength = __VERIFIER_nondet_int() [L15] material_length = __VERIFIER_nondet_int() [L16] COND FALSE !(!( nlen == idBitLength / 32 )) [L17] j = 0 [L17] COND TRUE (j < idBitLength / 8) && (j < material_length) [L18] CALL __VERIFIER_assert( 0 <= j) VAL [\old(cond)=1] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1] [L18] __VERIFIER_assert( 0 <= j) [L19] CALL __VERIFIER_assert( j < material_length ) VAL [\old(cond)=1] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1] [L19] __VERIFIER_assert( j < material_length ) [L20] CALL __VERIFIER_assert( 0 <= j/4 ) VAL [\old(cond)=1] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1] [L20] __VERIFIER_assert( 0 <= j/4 ) [L21] CALL __VERIFIER_assert( j/4 < nlen) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. UNSAFE Result, 1.7s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 23 SDslu, 90 SDs, 0 SdLazy, 84 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=2, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 924 SizeOfPredicates, 2 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...