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-crafted/simple_array_index_value_true-unreach-call4_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:28:47,917 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:28:47,922 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:28:47,936 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:28:47,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:28:47,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:28:47,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:28:47,941 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:28:47,942 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:28:47,943 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:28:47,944 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:28:47,944 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:28:47,945 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:28:47,946 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:28:47,947 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:28:47,948 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:28:47,949 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:28:47,953 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:28:47,955 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:28:47,960 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:28:47,961 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:28:47,965 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:28:47,967 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 22:28:47,984 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 [2018-10-26 22:28:48,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:28:48,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:28:48,005 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:28:48,005 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:28:48,006 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:28:48,006 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:28:48,006 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:28:48,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:28:48,007 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:28:48,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:28:48,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:28:48,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:28:48,007 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:28:48,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:28:48,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:28:48,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:28:48,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:28:48,008 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:28:48,009 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:28:48,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:28:48,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:28:48,009 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:28:48,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:28:48,009 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:28:48,010 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:28:48,010 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:28:48,010 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:28:48,010 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 22:28:48,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:28:48,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:28:48,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:28:48,087 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:28:48,087 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:28:48,088 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-10-26 22:28:48,150 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6262cbb63/ac2f868683e94ce59af7b212920f3669/FLAG0894260b6 [2018-10-26 22:28:48,616 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:28:48,617 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-10-26 22:28:48,622 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6262cbb63/ac2f868683e94ce59af7b212920f3669/FLAG0894260b6 [2018-10-26 22:28:48,635 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6262cbb63/ac2f868683e94ce59af7b212920f3669 [2018-10-26 22:28:48,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:28:48,645 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:28:48,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:28:48,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:28:48,650 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:28:48,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3e367d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48, skipping insertion in model container [2018-10-26 22:28:48,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:28:48,685 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:28:48,870 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:28:48,875 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:28:48,906 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:28:48,926 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:28:48,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48 WrapperNode [2018-10-26 22:28:48,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:28:48,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:28:48,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:28:48,928 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:28:48,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:28:48,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:28:48,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:28:48,970 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:28:48,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (1/1) ... [2018-10-26 22:28:48,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:28:48,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:28:48,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:28:48,999 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:28:49,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (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 [2018-10-26 22:28:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:28:49,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:28:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 22:28:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 22:28:49,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 22:28:49,495 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:28:49,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:28:49 BoogieIcfgContainer [2018-10-26 22:28:49,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:28:49,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:28:49,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:28:49,500 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:28:49,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:28:48" (1/3) ... [2018-10-26 22:28:49,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6102e422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:28:49, skipping insertion in model container [2018-10-26 22:28:49,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:48" (2/3) ... [2018-10-26 22:28:49,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6102e422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:28:49, skipping insertion in model container [2018-10-26 22:28:49,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:28:49" (3/3) ... [2018-10-26 22:28:49,504 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call4_true-termination.i [2018-10-26 22:28:49,514 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:28:49,528 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:28:49,545 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:28:49,575 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:28:49,576 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:28:49,576 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:28:49,577 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:28:49,577 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:28:49,577 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:28:49,577 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:28:49,577 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:28:49,577 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:28:49,593 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-10-26 22:28:49,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-26 22:28:49,599 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:49,600 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:49,602 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:49,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:49,608 INFO L82 PathProgramCache]: Analyzing trace with hash 152184704, now seen corresponding path program 1 times [2018-10-26 22:28:49,611 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:49,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:49,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:49,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:49,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:49,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:49,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 22:28:49,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 22:28:49,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 22:28:49,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:28:49,887 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2018-10-26 22:28:50,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:50,559 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2018-10-26 22:28:50,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:28:50,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-10-26 22:28:50,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:50,575 INFO L225 Difference]: With dead ends: 69 [2018-10-26 22:28:50,575 INFO L226 Difference]: Without dead ends: 38 [2018-10-26 22:28:50,580 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 [2018-10-26 22:28:50,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-26 22:28:50,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2018-10-26 22:28:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-10-26 22:28:50,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2018-10-26 22:28:50,641 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 8 [2018-10-26 22:28:50,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:50,642 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2018-10-26 22:28:50,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 22:28:50,642 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2018-10-26 22:28:50,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 22:28:50,643 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:50,643 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:50,645 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:50,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:50,646 INFO L82 PathProgramCache]: Analyzing trace with hash 458111371, now seen corresponding path program 1 times [2018-10-26 22:28:50,646 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:50,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:50,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:50,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:50,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:50,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:50,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:50,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:28:50,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:28:50,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:28:50,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:28:50,742 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 3 states. [2018-10-26 22:28:50,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:50,771 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-10-26 22:28:50,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:28:50,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-26 22:28:50,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:50,773 INFO L225 Difference]: With dead ends: 44 [2018-10-26 22:28:50,773 INFO L226 Difference]: Without dead ends: 31 [2018-10-26 22:28:50,774 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:28:50,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-26 22:28:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2018-10-26 22:28:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-10-26 22:28:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-10-26 22:28:50,781 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 13 [2018-10-26 22:28:50,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:50,781 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-10-26 22:28:50,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:28:50,781 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-10-26 22:28:50,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:28:50,782 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:50,782 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:50,783 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:50,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:50,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1957151887, now seen corresponding path program 1 times [2018-10-26 22:28:50,783 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:50,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:50,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:50,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:50,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:51,025 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:51,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:51,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-26 22:28:51,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-26 22:28:51,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-26 22:28:51,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:28:51,027 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 8 states. [2018-10-26 22:28:51,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:51,383 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2018-10-26 22:28:51,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 22:28:51,383 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-10-26 22:28:51,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:51,384 INFO L225 Difference]: With dead ends: 49 [2018-10-26 22:28:51,385 INFO L226 Difference]: Without dead ends: 47 [2018-10-26 22:28:51,386 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:28:51,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-10-26 22:28:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2018-10-26 22:28:51,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-26 22:28:51,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-10-26 22:28:51,396 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 18 [2018-10-26 22:28:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:51,396 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-10-26 22:28:51,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-26 22:28:51,397 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-10-26 22:28:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 22:28:51,397 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:51,398 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:51,398 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:51,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:51,399 INFO L82 PathProgramCache]: Analyzing trace with hash 471594042, now seen corresponding path program 1 times [2018-10-26 22:28:51,399 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:51,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:51,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:51,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:51,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:54,245 WARN L179 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-10-26 22:28:56,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:56,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:56,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-26 22:28:56,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-26 22:28:56,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-26 22:28:56,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-10-26 22:28:56,895 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 13 states. [2018-10-26 22:29:05,591 WARN L179 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2018-10-26 22:29:14,705 WARN L179 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2018-10-26 22:29:21,079 WARN L179 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2018-10-26 22:29:27,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:29:27,948 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-10-26 22:29:27,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-26 22:29:27,948 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-10-26 22:29:27,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:29:27,951 INFO L225 Difference]: With dead ends: 40 [2018-10-26 22:29:27,952 INFO L226 Difference]: Without dead ends: 38 [2018-10-26 22:29:27,954 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=69, Invalid=234, Unknown=3, NotChecked=0, Total=306 [2018-10-26 22:29:27,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-26 22:29:27,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-10-26 22:29:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-26 22:29:27,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-10-26 22:29:27,962 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 23 [2018-10-26 22:29:27,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:29:27,963 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-10-26 22:29:27,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-26 22:29:27,963 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-10-26 22:29:27,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 22:29:27,964 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:29:27,964 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:29:27,965 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:29:27,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:29:27,965 INFO L82 PathProgramCache]: Analyzing trace with hash 780909629, now seen corresponding path program 1 times [2018-10-26 22:29:27,966 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:29:27,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:29:27,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:29:27,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:29:27,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:29:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:29:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 22:29:32,029 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:29:32,029 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 [2018-10-26 22:29:32,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:29:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:29:32,077 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:29:34,192 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 22:29:34,213 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:29:34,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2018-10-26 22:29:34,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-26 22:29:34,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-26 22:29:34,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2018-10-26 22:29:34,214 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 8 states. [2018-10-26 22:29:37,426 WARN L179 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2018-10-26 22:29:53,410 WARN L179 SmtUtils]: Spent 10.44 s on a formula simplification that was a NOOP. DAG size: 32 [2018-10-26 22:30:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:30:02,057 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-10-26 22:30:02,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:30:02,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-10-26 22:30:02,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:30:02,066 INFO L225 Difference]: With dead ends: 41 [2018-10-26 22:30:02,066 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:30:02,067 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=33, Invalid=55, Unknown=2, NotChecked=0, Total=90 [2018-10-26 22:30:02,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:30:02,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:30:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:30:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:30:02,068 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-10-26 22:30:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:30:02,068 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:30:02,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-26 22:30:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:30:02,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:30:02,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:30:27,313 WARN L179 SmtUtils]: Spent 25.20 s on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2018-10-26 22:30:42,765 WARN L179 SmtUtils]: Spent 15.45 s on a formula simplification. DAG size of input: 66 DAG size of output: 26 [2018-10-26 22:30:46,403 WARN L179 SmtUtils]: Spent 3.64 s on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2018-10-26 22:30:58,833 WARN L179 SmtUtils]: Spent 12.43 s on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2018-10-26 22:30:58,837 INFO L425 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2018-10-26 22:30:58,837 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:30:58,838 INFO L425 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2018-10-26 22:30:58,838 INFO L425 ceAbstractionStarter]: For program point L31-1(lines 31 37) no Hoare annotation was computed. [2018-10-26 22:30:58,838 INFO L421 ceAbstractionStarter]: At program point L31-3(lines 31 37) the Hoare annotation is: (or (let ((.cse6 (div (+ ULTIMATE.start_main_~index2~0 4294867297) 4294967296))) (let ((.cse0 (+ (* 4294967296 .cse6) ULTIMATE.start_main_~index1~0)) (.cse1 (* 4294967296 (div (+ ULTIMATE.start_main_~index1~0 (- 1)) 4294967296)))) (and (<= .cse0 (+ .cse1 ULTIMATE.start_main_~index2~0 1)) (or (let ((.cse4 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|)) (.cse5 (* (- 4294967296) .cse6))) (let ((.cse3 (select .cse4 (+ (* 4 (+ ULTIMATE.start_main_~index2~0 (+ .cse5 (+ .cse1 (* (- 4294967296) (div (+ ULTIMATE.start_main_~index1~0 4294867295) 4294967296)))))) |ULTIMATE.start_main_~#array~0.offset|)))) (<= (let ((.cse2 (select .cse4 (+ (* 4 (+ ULTIMATE.start_main_~index2~0 (+ .cse5 1))) |ULTIMATE.start_main_~#array~0.offset|)))) (+ .cse2 (* 4294967296 (div (+ (- .cse2) (+ .cse3 4294967295)) 4294967296)))) .cse3))) (<= .cse0 (+ .cse1 ULTIMATE.start_main_~index2~0)))))) (and (<= ULTIMATE.start_main_~index1~0 (+ (* 4294967296 (div ULTIMATE.start_main_~index1~0 4294967296)) 99999)) (= ULTIMATE.start_main_~loop_entered~0 0) (<= ULTIMATE.start_main_~index2~0 (+ (* 4294967296 (div ULTIMATE.start_main_~index2~0 4294967296)) 99999)))) [2018-10-26 22:30:58,839 INFO L425 ceAbstractionStarter]: For program point L31-4(lines 20 47) no Hoare annotation was computed. [2018-10-26 22:30:58,839 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 47) no Hoare annotation was computed. [2018-10-26 22:30:58,839 INFO L425 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-10-26 22:30:58,839 INFO L421 ceAbstractionStarter]: At program point L40-3(lines 40 44) the Hoare annotation is: (let ((.cse3 (- ULTIMATE.start_main_~index1~0))) (or (and (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (let ((.cse0 (select .cse2 (+ (* 4 ULTIMATE.start_main_~index2~0) (+ (* (- 17179869184) (div ULTIMATE.start_main_~index2~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|))))) (<= .cse0 (let ((.cse1 (select .cse2 (+ (* 4 ULTIMATE.start_main_~index1~0) (+ |ULTIMATE.start_main_~#array~0.offset| (* (- 17179869184) (div ULTIMATE.start_main_~index1~0 4294967296))))))) (+ .cse1 (* 4294967296 (div (+ (- .cse1) .cse0) 4294967296))))))) (<= (+ (* 4294967296 (div (+ .cse3 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~index2~0 4294867297) 4294967296)) 4294967296)) 4294967296)) ULTIMATE.start_main_~index1~0) (+ ULTIMATE.start_main_~index2~0 1))) (<= (+ (* 4294967296 (div (+ .cse3 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~index2~0 4294867296) 4294967296)) 4294967295)) 4294967296)) ULTIMATE.start_main_~index1~0 1) ULTIMATE.start_main_~index2~0))) [2018-10-26 22:30:58,840 INFO L421 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (and (or (<= ULTIMATE.start_main_~index2~0 (+ (* 4294967296 (div ULTIMATE.start_main_~index2~0 4294967296)) 99998)) (= ULTIMATE.start_main_~loop_entered~0 0)) (<= (+ (* 4294967296 (div (+ (- ULTIMATE.start_main_~index1~0) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~index2~0 4294867296) 4294967296)) 4294967295)) 4294967296)) ULTIMATE.start_main_~index1~0 1) ULTIMATE.start_main_~index2~0)) [2018-10-26 22:30:58,840 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-26 22:30:58,840 INFO L425 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-10-26 22:30:58,840 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-26 22:30:58,840 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:30:58,840 INFO L425 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2018-10-26 22:30:58,840 INFO L425 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-10-26 22:30:58,840 INFO L421 ceAbstractionStarter]: At program point L41-2(line 41) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (let ((.cse0 (- |ULTIMATE.start_main_#t~mem7|)) (.cse1 (select .cse3 (+ (* 4 ULTIMATE.start_main_~index2~0) (+ (* (- 17179869184) (div ULTIMATE.start_main_~index2~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|))))) (and (<= |ULTIMATE.start_main_#t~mem8| (+ (* 4294967296 (div (+ |ULTIMATE.start_main_#t~mem8| .cse0) 4294967296)) |ULTIMATE.start_main_#t~mem7|)) (<= .cse1 (let ((.cse2 (select .cse3 (+ (* 4 ULTIMATE.start_main_~index1~0) (+ |ULTIMATE.start_main_~#array~0.offset| (* (- 17179869184) (div ULTIMATE.start_main_~index1~0 4294967296))))))) (+ .cse2 (* 4294967296 (div (+ (- .cse2) .cse1) 4294967296))))) (<= (+ (* 4294967296 (div (+ (- ULTIMATE.start_main_~index1~0) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~index2~0 4294867297) 4294967296)) 4294967296)) 4294967296)) ULTIMATE.start_main_~index1~0) (+ ULTIMATE.start_main_~index2~0 1)) (<= (+ (* 4294967296 (div (+ .cse0 (+ .cse1 4294967295)) 4294967296)) |ULTIMATE.start_main_#t~mem7|) .cse1)))) [2018-10-26 22:30:58,841 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 45) no Hoare annotation was computed. [2018-10-26 22:30:58,841 INFO L425 ceAbstractionStarter]: For program point L41-3(line 41) no Hoare annotation was computed. [2018-10-26 22:30:58,841 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2018-10-26 22:30:58,841 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-10-26 22:30:58,841 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-10-26 22:30:58,841 INFO L425 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2018-10-26 22:30:58,841 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2018-10-26 22:30:58,842 INFO L425 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2018-10-26 22:30:58,850 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,851 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,852 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,852 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,858 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,858 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,858 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,859 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,863 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,864 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,864 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,864 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,866 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,866 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,867 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,867 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:30:58 BoogieIcfgContainer [2018-10-26 22:30:58,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:30:58,871 INFO L168 Benchmark]: Toolchain (without parser) took 130226.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -542.6 MB). Peak memory consumption was 203.4 MB. Max. memory is 7.1 GB. [2018-10-26 22:30:58,872 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. [2018-10-26 22:30:58,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.19 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. [2018-10-26 22:30:58,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.14 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. [2018-10-26 22:30:58,874 INFO L168 Benchmark]: Boogie Preprocessor took 28.19 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. [2018-10-26 22:30:58,875 INFO L168 Benchmark]: RCFGBuilder took 497.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2018-10-26 22:30:58,876 INFO L168 Benchmark]: TraceAbstraction took 129372.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 229.2 MB). Peak memory consumption was 229.2 MB. Max. memory is 7.1 GB. [2018-10-26 22:30:58,881 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 281.19 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 42.14 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 28.19 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 497.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 129372.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 229.2 MB). Peak memory consumption was 229.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant [2018-10-26 22:30:58,892 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,892 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,892 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,893 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,894 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,894 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,894 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,895 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (unknown-#memory_int-unknown[array][4 * index2 + (-17179869184 * (index2 / 4294967296) + array)] <= unknown-#memory_int-unknown[array][4 * index1 + (array + -17179869184 * (index1 / 4294967296))] + 4294967296 * ((-unknown-#memory_int-unknown[array][4 * index1 + (array + -17179869184 * (index1 / 4294967296))] + unknown-#memory_int-unknown[array][4 * index2 + (-17179869184 * (index2 / 4294967296) + array)]) / 4294967296) && 4294967296 * ((-index1 + (4294967296 * ((index2 + 4294867297) / 4294967296) + 4294967296)) / 4294967296) + index1 <= index2 + 1) || 4294967296 * ((-index1 + (4294967296 * ((index2 + 4294867296) / 4294967296) + 4294967295)) / 4294967296) + index1 + 1 <= index2 - InvariantResult [Line: 31]: Loop Invariant [2018-10-26 22:30:58,896 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,896 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,897 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,897 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,898 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,898 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,899 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:30:58,899 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (4294967296 * ((index2 + 4294867297) / 4294967296) + index1 <= 4294967296 * ((index1 + -1) / 4294967296) + index2 + 1 && (unknown-#memory_int-unknown[array][4 * (index2 + (-4294967296 * ((index2 + 4294867297) / 4294967296) + 1)) + array] + 4294967296 * ((-unknown-#memory_int-unknown[array][4 * (index2 + (-4294967296 * ((index2 + 4294867297) / 4294967296) + 1)) + array] + (unknown-#memory_int-unknown[array][4 * (index2 + (-4294967296 * ((index2 + 4294867297) / 4294967296) + (4294967296 * ((index1 + -1) / 4294967296) + -4294967296 * ((index1 + 4294867295) / 4294967296)))) + array] + 4294967295)) / 4294967296) <= unknown-#memory_int-unknown[array][4 * (index2 + (-4294967296 * ((index2 + 4294867297) / 4294967296) + (4294967296 * ((index1 + -1) / 4294967296) + -4294967296 * ((index1 + 4294867295) / 4294967296)))) + array] || 4294967296 * ((index2 + 4294867297) / 4294967296) + index1 <= 4294967296 * ((index1 + -1) / 4294967296) + index2)) || ((index1 <= 4294967296 * (index1 / 4294967296) + 99999 && loop_entered == 0) && index2 <= 4294967296 * (index2 / 4294967296) + 99999) - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. SAFE Result, 129.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 60.0s AutomataDifference, 0.0s DeadEndRemovalTime, 56.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 94 SDtfs, 96 SDslu, 233 SDs, 0 SdLazy, 269 SolverSat, 32 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 27.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 43.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=4, 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, 5 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 18 NumberOfFragments, 472 HoareAnnotationTreeSize, 11 FomulaSimplifications, 68 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 406 FormulaSimplificationTreeSizeReductionInter, 56.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 39925 SizeOfPredicates, 2 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 35/39 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...