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-call1_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:45:52,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:45:52,526 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:45:52,538 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:45:52,538 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:45:52,539 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:45:52,540 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:45:52,542 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:45:52,544 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:45:52,545 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:45:52,546 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:45:52,546 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:45:52,547 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:45:52,548 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:45:52,549 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:45:52,550 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:45:52,551 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:45:52,553 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:45:52,555 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:45:52,556 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:45:52,557 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:45:52,559 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:45:52,561 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-22 15:45:52,570 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-22 15:45:52,598 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:45:52,598 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:45:52,601 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:45:52,601 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:45:52,601 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:45:52,602 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:45:52,602 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:45:52,602 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:45:52,602 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:45:52,602 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:45:52,603 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:45:52,603 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:45:52,603 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:45:52,603 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:45:52,603 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:45:52,605 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:45:52,605 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:45:52,605 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:45:52,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:45:52,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:45:52,606 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:45:52,606 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:45:52,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:45:52,606 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:45:52,606 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:45:52,607 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:45:52,607 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:45:52,607 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:45:52,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:45:52,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:45:52,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:45:52,687 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:45:52,687 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:45:52,688 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call1_true-termination.i [2018-10-22 15:45:52,753 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b4e27668/27a5ecd709504772aae33833b49a79d1/FLAGa48c54c92 [2018-10-22 15:45:53,226 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:45:53,227 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call1_true-termination.i [2018-10-22 15:45:53,232 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b4e27668/27a5ecd709504772aae33833b49a79d1/FLAGa48c54c92 [2018-10-22 15:45:53,246 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b4e27668/27a5ecd709504772aae33833b49a79d1 [2018-10-22 15:45:53,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:45:53,258 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:45:53,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:45:53,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:45:53,263 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:45:53,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a8effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53, skipping insertion in model container [2018-10-22 15:45:53,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:45:53,298 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:45:53,471 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:45:53,475 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:45:53,496 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:45:53,517 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:45:53,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53 WrapperNode [2018-10-22 15:45:53,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:45:53,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:45:53,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:45:53,519 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:45:53,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:45:53,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:45:53,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:45:53,561 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:45:53,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... [2018-10-22 15:45:53,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:45:53,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:45:53,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:45:53,587 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:45:53,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:45:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:45:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:45:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-22 15:45:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 15:45:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 15:45:54,157 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:45:54,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:45:54 BoogieIcfgContainer [2018-10-22 15:45:54,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:45:54,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:45:54,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:45:54,162 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:45:54,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:45:53" (1/3) ... [2018-10-22 15:45:54,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71684c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:45:54, skipping insertion in model container [2018-10-22 15:45:54,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:53" (2/3) ... [2018-10-22 15:45:54,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71684c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:45:54, skipping insertion in model container [2018-10-22 15:45:54,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:45:54" (3/3) ... [2018-10-22 15:45:54,165 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call1_true-termination.i [2018-10-22 15:45:54,175 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:45:54,182 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:45:54,199 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:45:54,231 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:45:54,231 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:45:54,231 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:45:54,232 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:45:54,232 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:45:54,232 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:45:54,232 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:45:54,232 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:45:54,232 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:45:54,249 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-10-22 15:45:54,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-22 15:45:54,254 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:54,255 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:54,257 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:54,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:54,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1645090688, now seen corresponding path program 1 times [2018-10-22 15:45:54,264 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:54,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:54,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:54,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:45:54,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:54,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:45:54,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:45:54,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:45:54,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:45:54,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:45:54,404 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2018-10-22 15:45:54,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:45:54,429 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2018-10-22 15:45:54,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:45:54,431 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-10-22 15:45:54,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:45:54,442 INFO L225 Difference]: With dead ends: 47 [2018-10-22 15:45:54,443 INFO L226 Difference]: Without dead ends: 22 [2018-10-22 15:45:54,446 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:45:54,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-22 15:45:54,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-22 15:45:54,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-22 15:45:54,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-10-22 15:45:54,487 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2018-10-22 15:45:54,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:45:54,487 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-10-22 15:45:54,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:45:54,487 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-10-22 15:45:54,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 15:45:54,488 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:54,489 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:54,489 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:54,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:54,489 INFO L82 PathProgramCache]: Analyzing trace with hash -22656602, now seen corresponding path program 1 times [2018-10-22 15:45:54,490 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:54,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:54,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:54,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:45:54,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:54,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:45:54,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:45:54,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:45:54,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:45:54,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:45:54,570 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 3 states. [2018-10-22 15:45:54,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:45:54,691 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-10-22 15:45:54,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:45:54,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-22 15:45:54,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:45:54,692 INFO L225 Difference]: With dead ends: 49 [2018-10-22 15:45:54,693 INFO L226 Difference]: Without dead ends: 32 [2018-10-22 15:45:54,694 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 [2018-10-22 15:45:54,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-22 15:45:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2018-10-22 15:45:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-22 15:45:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-10-22 15:45:54,702 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 13 [2018-10-22 15:45:54,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:45:54,703 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-10-22 15:45:54,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:45:54,703 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-10-22 15:45:54,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-22 15:45:54,704 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:54,704 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:54,704 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:54,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:54,705 INFO L82 PathProgramCache]: Analyzing trace with hash -137382522, now seen corresponding path program 1 times [2018-10-22 15:45:54,705 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:54,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:54,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:54,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:45:54,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:54,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:45:54,832 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 [2018-10-22 15:45:54,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:45:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:54,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:45:54,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-22 15:45:54,999 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-22 15:45:54,999 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:45:55,013 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:45:55,035 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:45:55,036 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-10-22 15:45:55,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-22 15:45:55,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-22 15:45:55,425 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:45:55,427 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:45:55,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:45:55,429 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-10-22 15:45:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:55,661 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:45:55,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8] total 9 [2018-10-22 15:45:55,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 15:45:55,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 15:45:55,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:45:55,663 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 9 states. [2018-10-22 15:46:00,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:00,231 INFO L93 Difference]: Finished difference Result 93 states and 109 transitions. [2018-10-22 15:46:00,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-22 15:46:00,237 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2018-10-22 15:46:00,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:00,239 INFO L225 Difference]: With dead ends: 93 [2018-10-22 15:46:00,239 INFO L226 Difference]: Without dead ends: 73 [2018-10-22 15:46:00,243 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-10-22 15:46:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-10-22 15:46:00,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 50. [2018-10-22 15:46:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-22 15:46:00,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-10-22 15:46:00,261 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 16 [2018-10-22 15:46:00,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:00,262 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-10-22 15:46:00,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 15:46:00,264 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-10-22 15:46:00,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-22 15:46:00,265 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:00,265 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:00,265 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:00,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:00,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1145283002, now seen corresponding path program 2 times [2018-10-22 15:46:00,266 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:00,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:00,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:00,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:00,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:00,441 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:00,441 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:00,456 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-22 15:46:00,513 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-22 15:46:00,513 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:46:00,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:00,700 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:46:00,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-10-22 15:46:00,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-22 15:46:00,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-22 15:46:00,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:46:00,702 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 6 states. [2018-10-22 15:46:00,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:00,974 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2018-10-22 15:46:00,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-22 15:46:00,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-10-22 15:46:00,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:00,980 INFO L225 Difference]: With dead ends: 99 [2018-10-22 15:46:00,980 INFO L226 Difference]: Without dead ends: 62 [2018-10-22 15:46:00,981 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:46:00,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-10-22 15:46:00,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2018-10-22 15:46:00,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-10-22 15:46:00,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2018-10-22 15:46:00,991 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 22 [2018-10-22 15:46:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:00,991 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2018-10-22 15:46:00,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-22 15:46:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2018-10-22 15:46:00,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-22 15:46:00,992 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:00,993 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:00,993 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:00,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:00,993 INFO L82 PathProgramCache]: Analyzing trace with hash 2061655752, now seen corresponding path program 3 times [2018-10-22 15:46:00,993 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:00,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:00,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:00,995 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:46:00,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:01,228 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:01,228 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:01,247 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-22 15:46:01,341 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-10-22 15:46:01,342 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:46:01,344 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:01,378 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:01,400 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:46:01,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-10-22 15:46:01,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-22 15:46:01,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-22 15:46:01,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-22 15:46:01,401 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 7 states. [2018-10-22 15:46:01,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:01,698 INFO L93 Difference]: Finished difference Result 113 states and 128 transitions. [2018-10-22 15:46:01,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 15:46:01,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-10-22 15:46:01,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:01,700 INFO L225 Difference]: With dead ends: 113 [2018-10-22 15:46:01,700 INFO L226 Difference]: Without dead ends: 72 [2018-10-22 15:46:01,701 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-22 15:46:01,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-10-22 15:46:01,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 67. [2018-10-22 15:46:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-10-22 15:46:01,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2018-10-22 15:46:01,715 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 25 [2018-10-22 15:46:01,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:01,716 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2018-10-22 15:46:01,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-22 15:46:01,716 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2018-10-22 15:46:01,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-22 15:46:01,717 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:01,717 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:01,717 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:01,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:01,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1573423354, now seen corresponding path program 4 times [2018-10-22 15:46:01,718 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:01,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:01,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:01,719 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:46:01,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:02,146 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:02,146 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:02,157 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-22 15:46:02,197 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-22 15:46:02,197 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:46:02,199 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:02,236 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:46:02,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-10-22 15:46:02,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 15:46:02,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 15:46:02,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:46:02,237 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 8 states. [2018-10-22 15:46:02,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:02,843 INFO L93 Difference]: Finished difference Result 130 states and 147 transitions. [2018-10-22 15:46:02,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 15:46:02,844 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-10-22 15:46:02,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:02,845 INFO L225 Difference]: With dead ends: 130 [2018-10-22 15:46:02,846 INFO L226 Difference]: Without dead ends: 82 [2018-10-22 15:46:02,847 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:46:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-10-22 15:46:02,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2018-10-22 15:46:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-10-22 15:46:02,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2018-10-22 15:46:02,856 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 28 [2018-10-22 15:46:02,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:02,857 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2018-10-22 15:46:02,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 15:46:02,857 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2018-10-22 15:46:02,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-22 15:46:02,858 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:02,858 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:02,858 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:02,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:02,859 INFO L82 PathProgramCache]: Analyzing trace with hash -909668856, now seen corresponding path program 5 times [2018-10-22 15:46:02,859 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:02,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:02,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:02,860 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:46:02,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:03,224 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:03,224 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:03,232 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-22 15:46:04,278 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-10-22 15:46:04,278 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:46:04,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:04,343 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:46:04,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-10-22 15:46:04,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 15:46:04,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 15:46:04,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:46:04,345 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 9 states. [2018-10-22 15:46:04,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:04,716 INFO L93 Difference]: Finished difference Result 147 states and 166 transitions. [2018-10-22 15:46:04,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-22 15:46:04,718 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-10-22 15:46:04,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:04,719 INFO L225 Difference]: With dead ends: 147 [2018-10-22 15:46:04,719 INFO L226 Difference]: Without dead ends: 92 [2018-10-22 15:46:04,720 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:46:04,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-10-22 15:46:04,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 87. [2018-10-22 15:46:04,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-10-22 15:46:04,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2018-10-22 15:46:04,732 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 31 [2018-10-22 15:46:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:04,733 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2018-10-22 15:46:04,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 15:46:04,733 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2018-10-22 15:46:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-22 15:46:04,734 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:04,734 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:04,734 INFO L424 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:04,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:04,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1028849722, now seen corresponding path program 6 times [2018-10-22 15:46:04,735 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:04,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:04,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:04,736 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:46:04,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:04,972 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:04,972 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:04,972 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:04,983 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-10-22 15:46:05,276 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-10-22 15:46:05,276 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:46:05,279 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:05,306 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:05,327 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:46:05,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-10-22 15:46:05,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-22 15:46:05,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-22 15:46:05,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-10-22 15:46:05,328 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand 10 states. [2018-10-22 15:46:05,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:05,999 INFO L93 Difference]: Finished difference Result 164 states and 185 transitions. [2018-10-22 15:46:05,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-22 15:46:05,999 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-10-22 15:46:06,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:06,001 INFO L225 Difference]: With dead ends: 164 [2018-10-22 15:46:06,002 INFO L226 Difference]: Without dead ends: 102 [2018-10-22 15:46:06,003 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-10-22 15:46:06,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-10-22 15:46:06,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 97. [2018-10-22 15:46:06,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-10-22 15:46:06,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2018-10-22 15:46:06,014 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 34 [2018-10-22 15:46:06,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:06,014 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2018-10-22 15:46:06,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-22 15:46:06,014 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2018-10-22 15:46:06,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-22 15:46:06,015 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:06,015 INFO L375 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:06,016 INFO L424 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:06,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:06,016 INFO L82 PathProgramCache]: Analyzing trace with hash 391925064, now seen corresponding path program 7 times [2018-10-22 15:46:06,016 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:06,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:06,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:06,018 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:46:06,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:06,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:06,349 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:06,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:06,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:06,434 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:46:06,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-10-22 15:46:06,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-22 15:46:06,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-22 15:46:06,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-22 15:46:06,435 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand 11 states. [2018-10-22 15:46:07,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:07,110 INFO L93 Difference]: Finished difference Result 181 states and 204 transitions. [2018-10-22 15:46:07,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-22 15:46:07,110 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-10-22 15:46:07,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:07,112 INFO L225 Difference]: With dead ends: 181 [2018-10-22 15:46:07,112 INFO L226 Difference]: Without dead ends: 112 [2018-10-22 15:46:07,113 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-22 15:46:07,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-22 15:46:07,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2018-10-22 15:46:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-10-22 15:46:07,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 118 transitions. [2018-10-22 15:46:07,125 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 118 transitions. Word has length 37 [2018-10-22 15:46:07,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:07,125 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 118 transitions. [2018-10-22 15:46:07,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-22 15:46:07,126 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 118 transitions. [2018-10-22 15:46:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-22 15:46:07,127 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:07,127 INFO L375 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:07,127 INFO L424 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:07,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:07,127 INFO L82 PathProgramCache]: Analyzing trace with hash -209127290, now seen corresponding path program 8 times [2018-10-22 15:46:07,128 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:07,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:07,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:07,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:07,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:07,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:07,770 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:07,780 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-22 15:46:07,814 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-22 15:46:07,814 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:46:07,816 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:07,868 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:46:07,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2018-10-22 15:46:07,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-22 15:46:07,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-22 15:46:07,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-22 15:46:07,869 INFO L87 Difference]: Start difference. First operand 107 states and 118 transitions. Second operand 12 states. [2018-10-22 15:46:08,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:08,638 INFO L93 Difference]: Finished difference Result 198 states and 223 transitions. [2018-10-22 15:46:08,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-22 15:46:08,646 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-10-22 15:46:08,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:08,647 INFO L225 Difference]: With dead ends: 198 [2018-10-22 15:46:08,648 INFO L226 Difference]: Without dead ends: 122 [2018-10-22 15:46:08,648 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-22 15:46:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-10-22 15:46:08,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 117. [2018-10-22 15:46:08,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-10-22 15:46:08,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 129 transitions. [2018-10-22 15:46:08,659 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 129 transitions. Word has length 40 [2018-10-22 15:46:08,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:08,660 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 129 transitions. [2018-10-22 15:46:08,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-22 15:46:08,660 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2018-10-22 15:46:08,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-22 15:46:08,661 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:08,661 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:08,662 INFO L424 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:08,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:08,662 INFO L82 PathProgramCache]: Analyzing trace with hash -441148280, now seen corresponding path program 9 times [2018-10-22 15:46:08,662 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:08,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:08,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:08,663 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:46:08,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:09,273 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:09,274 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:09,284 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-22 15:46:11,845 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-10-22 15:46:11,846 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:46:11,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:11,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 29 [2018-10-22 15:46:11,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-22 15:46:11,963 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:11,974 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:11,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2018-10-22 15:46:11,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-22 15:46:11,982 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:11,992 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,015 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:103, output treesize:22 [2018-10-22 15:46:12,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-10-22 15:46:12,108 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:46:12,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 31 [2018-10-22 15:46:12,119 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,137 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,148 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,148 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:14 [2018-10-22 15:46:12,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-10-22 15:46:12,182 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:46:12,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 31 [2018-10-22 15:46:12,185 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,195 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,208 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:14 [2018-10-22 15:46:12,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-10-22 15:46:12,247 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:46:12,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-10-22 15:46:12,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,272 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:11 [2018-10-22 15:46:12,322 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-10-22 15:46:12,322 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:12,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-10-22 15:46:12,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 24 [2018-10-22 15:46:12,376 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-10-22 15:46:12,390 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-22 15:46:12,413 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-10-22 15:46:12,414 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:97, output treesize:34 [2018-10-22 15:46:12,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2018-10-22 15:46:12,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 35 [2018-10-22 15:46:12,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-10-22 15:46:12,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-22 15:46:12,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2018-10-22 15:46:13,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 29 treesize of output 64 [2018-10-22 15:46:13,047 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 8 xjuncts. [2018-10-22 15:46:13,126 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-22 15:46:13,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 5 xjuncts. [2018-10-22 15:46:13,214 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:82, output treesize:113 [2018-10-22 15:46:21,433 WARN L179 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 25 [2018-10-22 15:46:21,447 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-10-22 15:46:21,447 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:21,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 35 [2018-10-22 15:46:21,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-22 15:46:21,454 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:21,464 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:33,631 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select (select v_prenex_9 |ULTIMATE.start_main_~#array~0.base|) (+ (* 4 (mod ULTIMATE.start_main_~index~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|)) (mod ULTIMATE.start_main_~index~0 2)) [2018-10-22 15:46:33,632 INFO L303 Elim1Store]: Index analysis took 4015 ms [2018-10-22 15:46:33,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2018-10-22 15:46:35,642 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:46:37,648 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_12 |ULTIMATE.start_main_~#array~0.offset|) (mod ULTIMATE.start_main_~index~0 2)) [2018-10-22 15:46:37,649 INFO L303 Elim1Store]: Index analysis took 4014 ms [2018-10-22 15:46:37,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 33 [2018-10-22 15:46:37,650 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:41,680 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:46:49,756 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select (select v_prenex_10 |ULTIMATE.start_main_~#array~0.base|) (+ (* 4 (mod ULTIMATE.start_main_~index~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|)) (mod ULTIMATE.start_main_~index~0 2)) [2018-10-22 15:46:49,757 INFO L303 Elim1Store]: Index analysis took 4015 ms [2018-10-22 15:46:49,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 34 [2018-10-22 15:46:49,763 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:46:49,764 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 35 [2018-10-22 15:46:49,764 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-10-22 15:46:55,794 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:47:01,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-10-22 15:47:01,949 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:397, output treesize:97 [2018-10-22 15:47:04,057 WARN L179 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 30 [2018-10-22 15:47:08,224 WARN L179 SmtUtils]: Spent 4.08 s on a formula simplification that was a NOOP. DAG size: 34 [2018-10-22 15:47:10,255 INFO L303 Elim1Store]: Index analysis took 2025 ms [2018-10-22 15:47:10,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 56 [2018-10-22 15:47:12,266 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967295) 4294967296))) |ULTIMATE.start_main_~#array~0.offset|) [2018-10-22 15:47:12,269 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:47:12,273 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:47:12,277 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:47:14,290 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_14 (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967295) 4294967296)))) |ULTIMATE.start_write~int_#value|) [2018-10-22 15:47:14,293 INFO L303 Elim1Store]: Index analysis took 4035 ms [2018-10-22 15:47:14,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 84 [2018-10-22 15:47:14,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:47:18,330 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:47:22,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2018-10-22 15:47:26,498 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967295) 4294967296))) |ULTIMATE.start_main_~#array~0.offset|) [2018-10-22 15:47:26,499 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:47:26,501 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:47:26,503 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:47:28,518 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_15 (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967295) 4294967296)))) v_prenex_15) [2018-10-22 15:47:30,524 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_15 (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967295) 4294967296)))) v_prenex_15) [2018-10-22 15:47:30,525 INFO L303 Elim1Store]: Index analysis took 8040 ms [2018-10-22 15:47:30,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 80 [2018-10-22 15:47:30,526 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-22 15:47:30,555 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:47:36,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 44 [2018-10-22 15:47:36,697 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:47:36,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 51 [2018-10-22 15:47:36,700 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-22 15:47:36,720 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:47:38,818 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-10-22 15:47:38,819 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:177, output treesize:151 [2018-10-22 15:47:48,992 WARN L179 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 40 [2018-10-22 15:48:05,215 WARN L179 SmtUtils]: Spent 16.13 s on a formula simplification that was a NOOP. DAG size: 40 [2018-10-22 15:48:07,247 INFO L303 Elim1Store]: Index analysis took 2022 ms [2018-10-22 15:48:07,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2018-10-22 15:48:07,259 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:48:07,261 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:48:09,268 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (+ (* 4 (mod ULTIMATE.start_main_~index~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|) |ULTIMATE.start_main_~#array~0.offset|) [2018-10-22 15:48:09,271 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:48:09,272 INFO L303 Elim1Store]: Index analysis took 2021 ms [2018-10-22 15:48:09,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 82 [2018-10-22 15:48:09,274 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:48:09,311 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:48:11,321 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select (select |ULTIMATE.start_write~int_old_#memory_int| |ULTIMATE.start_main_~#array~0.base|) (+ (* 4 (mod ULTIMATE.start_main_~index~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|)) (mod ULTIMATE.start_main_~index~0 2)) [2018-10-22 15:48:11,322 INFO L303 Elim1Store]: Index analysis took 2009 ms [2018-10-22 15:48:11,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 80 [2018-10-22 15:48:11,330 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:48:13,336 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (+ (* 4 (mod ULTIMATE.start_main_~index~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|) (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967294) 4294967296)))) [2018-10-22 15:48:13,354 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:48:13,377 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:48:13,377 INFO L303 Elim1Store]: Index analysis took 2052 ms [2018-10-22 15:48:13,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 82 [2018-10-22 15:48:13,379 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-22 15:48:17,420 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:48:43,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 72 [2018-10-22 15:48:43,556 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:48:43,581 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:48:43,602 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:48:43,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 80 [2018-10-22 15:48:43,627 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-22 15:48:47,670 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:49:18,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 44 [2018-10-22 15:49:20,070 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (+ (* 4 (mod ULTIMATE.start_main_~index~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|) (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967294) 4294967296)))) [2018-10-22 15:49:20,072 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:49:20,072 INFO L303 Elim1Store]: Index analysis took 2010 ms [2018-10-22 15:49:20,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 51 [2018-10-22 15:49:20,074 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-10-22 15:49:24,113 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:49:50,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-10-22 15:49:50,424 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:715, output treesize:198 [2018-10-22 15:50:08,718 WARN L179 SmtUtils]: Spent 16.19 s on a formula simplification that was a NOOP. DAG size: 46 [2018-10-22 15:50:23,273 WARN L179 SmtUtils]: Spent 10.29 s on a formula simplification that was a NOOP. DAG size: 50 [2018-10-22 15:50:25,315 INFO L303 Elim1Store]: Index analysis took 2029 ms [2018-10-22 15:50:25,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 77 [2018-10-22 15:50:25,325 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:50:25,331 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:50:25,338 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:50:25,344 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:50:25,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 110 [2018-10-22 15:50:25,346 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-22 15:50:27,406 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-22 15:50:27,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 76 [2018-10-22 15:50:27,429 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:50:27,432 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:50:27,435 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:50:27,439 INFO L700 Elim1Store]: detected not equals via solver [2018-10-22 15:50:27,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 110 [2018-10-22 15:50:27,440 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-22 15:50:35,727 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. Received shutdown request... [2018-10-22 15:50:42,077 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-22 15:50:42,278 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:50:42,278 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-22 15:50:42,284 WARN L205 ceAbstractionStarter]: Timeout [2018-10-22 15:50:42,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:50:42 BoogieIcfgContainer [2018-10-22 15:50:42,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:50:42,285 INFO L168 Benchmark]: Toolchain (without parser) took 289027.54 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.8 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -435.7 MB). Peak memory consumption was 412.0 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:42,286 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:50:42,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:42,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.34 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:50:42,288 INFO L168 Benchmark]: Boogie Preprocessor took 25.53 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:50:42,288 INFO L168 Benchmark]: RCFGBuilder took 571.53 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:42,289 INFO L168 Benchmark]: TraceAbstraction took 288125.56 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 127.9 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 323.5 MB). Peak memory consumption was 451.4 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:42,294 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 258.78 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 41.34 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 25.53 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 571.53 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 288125.56 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 127.9 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 323.5 MB). Peak memory consumption was 451.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 11]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 11). Cancelled while BasicCegarLoop was analyzing trace of length 44 with TraceHistMax 11,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while SimplifyDDAWithTimeout was simplifying term of DAG size 130. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. TIMEOUT Result, 288.0s OverallTime, 11 OverallIterations, 11 TraceHistogramMax, 8.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 393 SDtfs, 301 SDslu, 1863 SDs, 0 SdLazy, 2844 SolverSat, 75 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 300 GetRequests, 224 SyntacticMatches, 16 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=10, 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 63 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 473 ConstructedInterpolants, 0 QuantifiedInterpolants, 63631 SizeOfPredicates, 18 NumberOfNonLiveVariables, 946 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 18 InterpolantComputations, 2 PerfectInterpolantSequences, 0/886 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown