java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-examples/standard_sentinel_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:19:25,503 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:19:25,507 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:19:25,526 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:19:25,526 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:19:25,527 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:19:25,531 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:19:25,534 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:19:25,537 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:19:25,540 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:19:25,541 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:19:25,541 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:19:25,542 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:19:25,543 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:19:25,544 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:19:25,545 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:19:25,549 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:19:25,560 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:19:25,562 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:19:25,565 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:19:25,567 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:19:25,569 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:19:25,572 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-05-23 11:19:25,579 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:19:25,580 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:19:25,580 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:19:25,580 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:19:25,581 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:19:25,581 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:19:25,582 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:19:25,608 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:19:25,608 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:19:25,611 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:19:25,611 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:19:25,612 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:19:25,613 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:19:25,613 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:19:25,613 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:19:25,613 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:19:25,613 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:19:25,614 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:19:25,614 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:19:25,614 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:19:25,614 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:19:25,614 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:19:25,615 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:19:25,616 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:19:25,616 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:19:25,616 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:19:25,616 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:19:25,617 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:19:25,617 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:19:25,617 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:19:25,618 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:19:25,618 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:19:25,618 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:19:25,618 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:19:25,618 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:19:25,618 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:19:25,657 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:19:25,668 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:19:25,671 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:19:25,672 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:19:25,672 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:19:25,673 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-examples/standard_sentinel_true-unreach-call_true-termination.i [2019-05-23 11:19:25,731 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46079f153/6ff117d2a9344f619ded88703cb2a5f3/FLAG9076bae06 [2019-05-23 11:19:26,164 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:19:26,165 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-examples/standard_sentinel_true-unreach-call_true-termination.i [2019-05-23 11:19:26,169 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46079f153/6ff117d2a9344f619ded88703cb2a5f3/FLAG9076bae06 [2019-05-23 11:19:26,561 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46079f153/6ff117d2a9344f619ded88703cb2a5f3 [2019-05-23 11:19:26,569 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:19:26,571 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:19:26,572 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:19:26,572 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:19:26,575 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:19:26,576 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,579 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e922eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26, skipping insertion in model container [2019-05-23 11:19:26,580 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,587 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:19:26,606 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:19:26,790 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:19:26,797 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:19:26,830 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:19:26,860 INFO L146 ILogger]: Completed translation [2019-05-23 11:19:26,861 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26 WrapperNode [2019-05-23 11:19:26,861 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:19:26,862 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:19:26,863 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:19:26,864 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:19:26,875 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,892 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,920 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:19:26,921 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:19:26,921 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:19:26,922 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:19:26,932 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,932 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,934 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,935 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,940 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,948 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,949 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... [2019-05-23 11:19:26,954 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:19:26,954 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:19:26,955 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:19:26,961 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:19:26,962 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 11:19:27,151 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:19:27,151 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:19:27,151 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:19:27,152 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:19:27,152 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:19:27,152 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:19:27,508 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:19:27,508 INFO L146 ILogger]: Removed 7 assume(true) statements. [2019-05-23 11:19:27,510 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:19:27 BoogieIcfgContainer [2019-05-23 11:19:27,510 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:19:27,510 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:19:27,511 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:19:27,516 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:19:27,516 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:19:26" (1/3) ... [2019-05-23 11:19:27,517 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d529f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:19:27, skipping insertion in model container [2019-05-23 11:19:27,517 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:19:26" (2/3) ... [2019-05-23 11:19:27,518 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d529f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:19:27, skipping insertion in model container [2019-05-23 11:19:27,518 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:19:27" (3/3) ... [2019-05-23 11:19:27,520 INFO L146 ILogger]: Analyzing ICFG standard_sentinel_true-unreach-call_true-termination.i [2019-05-23 11:19:27,529 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:19:27,537 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:19:27,553 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:19:27,579 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:19:27,579 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:19:27,580 INFO L146 ILogger]: Hoare is true [2019-05-23 11:19:27,580 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:19:27,580 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:19:27,580 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:19:27,580 INFO L146 ILogger]: Difference is false [2019-05-23 11:19:27,580 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:19:27,580 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:19:27,593 INFO L146 ILogger]: Start isEmpty. Operand 31 states. [2019-05-23 11:19:27,599 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 21 [2019-05-23 11:19:27,599 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:27,600 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:19:27,602 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:27,606 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:27,607 INFO L146 ILogger]: Analyzing trace with hash -617132305, now seen corresponding path program 1 times [2019-05-23 11:19:27,608 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:27,609 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:27,655 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:27,655 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:27,655 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:27,703 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:27,738 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:27,741 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:19:27,741 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:19:27,744 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:19:27,755 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:19:27,756 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:19:27,758 INFO L146 ILogger]: Start difference. First operand 31 states. Second operand 2 states. [2019-05-23 11:19:27,772 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:27,773 INFO L146 ILogger]: Finished difference Result 43 states and 46 transitions. [2019-05-23 11:19:27,773 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:19:27,774 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 20 [2019-05-23 11:19:27,775 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:27,785 INFO L146 ILogger]: With dead ends: 43 [2019-05-23 11:19:27,785 INFO L146 ILogger]: Without dead ends: 25 [2019-05-23 11:19:27,790 INFO L146 ILogger]: 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 [2019-05-23 11:19:27,808 INFO L146 ILogger]: Start minimizeSevpa. Operand 25 states. [2019-05-23 11:19:27,818 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-05-23 11:19:27,820 INFO L146 ILogger]: Start removeUnreachable. Operand 25 states. [2019-05-23 11:19:27,821 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-05-23 11:19:27,825 INFO L146 ILogger]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 20 [2019-05-23 11:19:27,825 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:27,825 INFO L146 ILogger]: Abstraction has 25 states and 25 transitions. [2019-05-23 11:19:27,826 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:19:27,826 INFO L146 ILogger]: Start isEmpty. Operand 25 states and 25 transitions. [2019-05-23 11:19:27,827 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 23 [2019-05-23 11:19:27,827 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:27,827 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:19:27,827 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:27,828 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:27,828 INFO L146 ILogger]: Analyzing trace with hash -264123112, now seen corresponding path program 1 times [2019-05-23 11:19:27,828 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:27,828 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:27,829 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:27,830 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:27,830 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:27,853 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:28,023 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:28,023 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:19:28,023 INFO L146 ILogger]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-05-23 11:19:28,025 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:19:28,025 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:19:28,026 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:19:28,026 INFO L146 ILogger]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2019-05-23 11:19:28,206 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:28,206 INFO L146 ILogger]: Finished difference Result 36 states and 36 transitions. [2019-05-23 11:19:28,207 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 11:19:28,207 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 22 [2019-05-23 11:19:28,208 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:28,208 INFO L146 ILogger]: With dead ends: 36 [2019-05-23 11:19:28,208 INFO L146 ILogger]: Without dead ends: 29 [2019-05-23 11:19:28,210 INFO L146 ILogger]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:19:28,210 INFO L146 ILogger]: Start minimizeSevpa. Operand 29 states. [2019-05-23 11:19:28,214 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-05-23 11:19:28,214 INFO L146 ILogger]: Start removeUnreachable. Operand 27 states. [2019-05-23 11:19:28,215 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-05-23 11:19:28,215 INFO L146 ILogger]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 22 [2019-05-23 11:19:28,216 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:28,216 INFO L146 ILogger]: Abstraction has 27 states and 27 transitions. [2019-05-23 11:19:28,216 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:19:28,216 INFO L146 ILogger]: Start isEmpty. Operand 27 states and 27 transitions. [2019-05-23 11:19:28,217 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 27 [2019-05-23 11:19:28,217 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:28,217 INFO L146 ILogger]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:19:28,217 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:28,218 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:28,218 INFO L146 ILogger]: Analyzing trace with hash -645352001, now seen corresponding path program 1 times [2019-05-23 11:19:28,218 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:28,218 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:28,219 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:28,219 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:28,220 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:28,236 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:28,583 WARN L146 ILogger]: Spent 208.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 6 [2019-05-23 11:19:28,946 WARN L146 ILogger]: Spent 248.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2019-05-23 11:19:29,407 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:29,407 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:29,408 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2019-05-23 11:19:29,433 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:29,470 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:29,472 INFO L146 ILogger]: Trace formula consists of 51 conjuncts, 13 conjunts are in the unsatisfiable core [2019-05-23 11:19:29,480 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:29,740 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2019-05-23 11:19:29,740 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:19:29,750 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:29,750 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:19:29,751 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-05-23 11:19:29,848 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:29,849 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2019-05-23 11:19:29,850 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-05-23 11:19:29,894 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:29,896 INFO L146 ILogger]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-05-23 11:19:29,896 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:23 [2019-05-23 11:19:30,027 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:30,055 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:30,056 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2019-05-23 11:19:30,056 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 11:19:30,057 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 11:19:30,058 INFO L146 ILogger]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2019-05-23 11:19:30,059 INFO L146 ILogger]: Start difference. First operand 27 states and 27 transitions. Second operand 20 states. [2019-05-23 11:19:30,333 WARN L146 ILogger]: Spent 103.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2019-05-23 11:19:30,639 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:30,639 INFO L146 ILogger]: Finished difference Result 40 states and 40 transitions. [2019-05-23 11:19:30,640 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:19:30,640 INFO L146 ILogger]: Start accepts. Automaton has 20 states. Word has length 26 [2019-05-23 11:19:30,641 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:30,642 INFO L146 ILogger]: With dead ends: 40 [2019-05-23 11:19:30,642 INFO L146 ILogger]: Without dead ends: 33 [2019-05-23 11:19:30,643 INFO L146 ILogger]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:19:30,644 INFO L146 ILogger]: Start minimizeSevpa. Operand 33 states. [2019-05-23 11:19:30,647 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-05-23 11:19:30,647 INFO L146 ILogger]: Start removeUnreachable. Operand 31 states. [2019-05-23 11:19:30,648 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-05-23 11:19:30,648 INFO L146 ILogger]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2019-05-23 11:19:30,649 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:30,649 INFO L146 ILogger]: Abstraction has 31 states and 31 transitions. [2019-05-23 11:19:30,649 INFO L146 ILogger]: Interpolant automaton has 20 states. [2019-05-23 11:19:30,649 INFO L146 ILogger]: Start isEmpty. Operand 31 states and 31 transitions. [2019-05-23 11:19:30,650 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 31 [2019-05-23 11:19:30,650 INFO L146 ILogger]: Found error trace [2019-05-23 11:19:30,650 INFO L146 ILogger]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:19:30,651 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:19:30,651 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:19:30,651 INFO L146 ILogger]: Analyzing trace with hash 2118972134, now seen corresponding path program 2 times [2019-05-23 11:19:30,651 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:19:30,651 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:19:30,652 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:30,652 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:19:30,653 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:19:30,675 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:31,449 WARN L146 ILogger]: Spent 197.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2019-05-23 11:19:31,835 WARN L146 ILogger]: Spent 224.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2019-05-23 11:19:31,983 INFO L146 ILogger]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:31,983 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:19:31,983 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2019-05-23 11:19:31,995 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:19:32,006 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:19:32,006 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:19:32,007 INFO L146 ILogger]: Trace formula consists of 57 conjuncts, 21 conjunts are in the unsatisfiable core [2019-05-23 11:19:32,009 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:19:32,033 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 18 [2019-05-23 11:19:32,035 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:19:32,041 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 22 [2019-05-23 11:19:32,042 INFO L146 ILogger]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-05-23 11:19:32,063 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:32,064 INFO L146 ILogger]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-05-23 11:19:32,065 INFO L146 ILogger]: Needed 3 recursive calls to eliminate 1 variables, input treesize:49, output treesize:41 [2019-05-23 11:19:32,238 INFO L146 ILogger]: detected not equals via solver [2019-05-23 11:19:32,249 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:32,250 INFO L146 ILogger]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 33 [2019-05-23 11:19:32,252 INFO L146 ILogger]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-05-23 11:19:32,268 INFO L146 ILogger]: treesize reduction 0, result has 100.0 percent of original size [2019-05-23 11:19:32,268 INFO L146 ILogger]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-05-23 11:19:32,269 INFO L146 ILogger]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:30 [2019-05-23 11:19:32,434 INFO L146 ILogger]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:19:32,453 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:19:32,453 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 23 [2019-05-23 11:19:32,454 INFO L146 ILogger]: Interpolant automaton has 23 states [2019-05-23 11:19:32,454 INFO L146 ILogger]: Constructing interpolant automaton starting with 23 interpolants. [2019-05-23 11:19:32,455 INFO L146 ILogger]: CoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:19:32,455 INFO L146 ILogger]: Start difference. First operand 31 states and 31 transitions. Second operand 23 states. [2019-05-23 11:19:33,546 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:19:33,546 INFO L146 ILogger]: Finished difference Result 42 states and 43 transitions. [2019-05-23 11:19:33,547 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-05-23 11:19:33,547 INFO L146 ILogger]: Start accepts. Automaton has 23 states. Word has length 30 [2019-05-23 11:19:33,547 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:19:33,548 INFO L146 ILogger]: With dead ends: 42 [2019-05-23 11:19:33,548 INFO L146 ILogger]: Without dead ends: 0 [2019-05-23 11:19:33,549 INFO L146 ILogger]: 0 DeclaredPredicates, 59 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=339, Invalid=993, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 11:19:33,549 INFO L146 ILogger]: Start minimizeSevpa. Operand 0 states. [2019-05-23 11:19:33,549 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-05-23 11:19:33,549 INFO L146 ILogger]: Start removeUnreachable. Operand 0 states. [2019-05-23 11:19:33,550 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-05-23 11:19:33,550 INFO L146 ILogger]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2019-05-23 11:19:33,550 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:19:33,550 INFO L146 ILogger]: Abstraction has 0 states and 0 transitions. [2019-05-23 11:19:33,550 INFO L146 ILogger]: Interpolant automaton has 23 states. [2019-05-23 11:19:33,550 INFO L146 ILogger]: Start isEmpty. Operand 0 states and 0 transitions. [2019-05-23 11:19:33,550 INFO L146 ILogger]: Finished isEmpty. No accepting run. [2019-05-23 11:19:33,554 INFO L146 ILogger]: Before removal of dead ends 0 states and 0 transitions. [2019-05-23 11:19:33,637 INFO L146 ILogger]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2019-05-23 11:19:33,637 INFO L146 ILogger]: For program point L11-2(line 11) no Hoare annotation was computed. [2019-05-23 11:19:33,637 INFO L146 ILogger]: For program point L7(line 7) no Hoare annotation was computed. [2019-05-23 11:19:33,638 INFO L146 ILogger]: For program point L11-4(line 11) no Hoare annotation was computed. [2019-05-23 11:19:33,638 INFO L146 ILogger]: For program point L7-1(line 7) no Hoare annotation was computed. [2019-05-23 11:19:33,638 INFO L146 ILogger]: At program point L11-5(lines 11 13) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~marker~0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* 4 ULTIMATE.start_main_~pos~0))))) (.cse1 (= |ULTIMATE.start_main_~#a~0.offset| 0))) (or (and .cse0 .cse1 (or (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~pos~0) (= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~pos~0)) (< 0 ULTIMATE.start_main_~pos~0)) (and .cse0 .cse1 (<= 0 ULTIMATE.start_main_~pos~0) (= ULTIMATE.start_main_~i~0 0)))) [2019-05-23 11:19:33,638 INFO L146 ILogger]: For program point L7-2(line 7) no Hoare annotation was computed. [2019-05-23 11:19:33,638 INFO L146 ILogger]: For program point L11-6(lines 11 13) no Hoare annotation was computed. [2019-05-23 11:19:33,639 INFO L146 ILogger]: For program point L3(line 3) no Hoare annotation was computed. [2019-05-23 11:19:33,639 INFO L146 ILogger]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-05-23 11:19:33,639 INFO L146 ILogger]: For program point L3-2(line 3) no Hoare annotation was computed. [2019-05-23 11:19:33,639 INFO L146 ILogger]: For program point L-1(line -1) no Hoare annotation was computed. [2019-05-23 11:19:33,639 INFO L146 ILogger]: For program point L-1-1(line -1) no Hoare annotation was computed. [2019-05-23 11:19:33,639 INFO L146 ILogger]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-05-23 11:19:33,639 INFO L146 ILogger]: For program point L-1-2(line -1) no Hoare annotation was computed. [2019-05-23 11:19:33,639 INFO L146 ILogger]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-05-23 11:19:33,640 INFO L146 ILogger]: At program point L16(lines 4 17) the Hoare annotation is: true [2019-05-23 11:19:33,640 INFO L146 ILogger]: For program point L12(line 12) no Hoare annotation was computed. [2019-05-23 11:19:33,640 INFO L146 ILogger]: For program point L8(lines 8 15) no Hoare annotation was computed. [2019-05-23 11:19:33,640 INFO L146 ILogger]: For program point L8-1(lines 8 15) no Hoare annotation was computed. [2019-05-23 11:19:33,640 INFO L146 ILogger]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-05-23 11:19:33,640 INFO L146 ILogger]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-05-23 11:19:33,640 INFO L146 ILogger]: For program point L9(line 9) no Hoare annotation was computed. [2019-05-23 11:19:33,640 INFO L146 ILogger]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-05-23 11:19:33,641 INFO L146 ILogger]: For program point L5(line 5) no Hoare annotation was computed. [2019-05-23 11:19:33,641 INFO L146 ILogger]: For program point L5-1(line 5) no Hoare annotation was computed. [2019-05-23 11:19:33,641 INFO L146 ILogger]: For program point L5-2(line 5) no Hoare annotation was computed. [2019-05-23 11:19:33,641 INFO L146 ILogger]: For program point L5-3(line 5) no Hoare annotation was computed. [2019-05-23 11:19:33,641 INFO L146 ILogger]: For program point L14(line 14) no Hoare annotation was computed. [2019-05-23 11:19:33,641 INFO L146 ILogger]: For program point L6(line 6) no Hoare annotation was computed. [2019-05-23 11:19:33,641 INFO L146 ILogger]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-05-23 11:19:33,650 WARN L146 ILogger]: unknown boogie variable #memory_int [2019-05-23 11:19:33,651 WARN L146 ILogger]: unknown boogie variable #memory_int [2019-05-23 11:19:33,655 WARN L146 ILogger]: unknown boogie variable #memory_int [2019-05-23 11:19:33,656 WARN L146 ILogger]: unknown boogie variable #memory_int [2019-05-23 11:19:33,658 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 11:19:33 BoogieIcfgContainer [2019-05-23 11:19:33,658 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 11:19:33,660 INFO L146 ILogger]: Toolchain (without parser) took 7089.14 ms. Allocated memory was 140.5 MB in the beginning and 254.8 MB in the end (delta: 114.3 MB). Free memory was 88.4 MB in the beginning and 141.3 MB in the end (delta: -52.9 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2019-05-23 11:19:33,661 INFO L146 ILogger]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-05-23 11:19:33,662 INFO L146 ILogger]: CACSL2BoogieTranslator took 290.13 ms. Allocated memory is still 140.5 MB. Free memory was 88.1 MB in the beginning and 78.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-05-23 11:19:33,663 INFO L146 ILogger]: Boogie Procedure Inliner took 58.24 ms. Allocated memory is still 140.5 MB. Free memory was 78.5 MB in the beginning and 76.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-05-23 11:19:33,663 INFO L146 ILogger]: Boogie Preprocessor took 32.78 ms. Allocated memory is still 140.5 MB. Free memory was 76.9 MB in the beginning and 75.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-05-23 11:19:33,664 INFO L146 ILogger]: RCFGBuilder took 555.41 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 75.6 MB in the beginning and 168.7 MB in the end (delta: -93.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-05-23 11:19:33,665 INFO L146 ILogger]: TraceAbstraction took 6148.01 ms. Allocated memory was 202.9 MB in the beginning and 254.8 MB in the end (delta: 51.9 MB). Free memory was 168.1 MB in the beginning and 141.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. [2019-05-23 11:19:33,670 INFO L146 ILogger]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 290.13 ms. Allocated memory is still 140.5 MB. Free memory was 88.1 MB in the beginning and 78.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.24 ms. Allocated memory is still 140.5 MB. Free memory was 78.5 MB in the beginning and 76.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.78 ms. Allocated memory is still 140.5 MB. Free memory was 76.9 MB in the beginning and 75.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 555.41 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 75.6 MB in the beginning and 168.7 MB in the end (delta: -93.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6148.01 ms. Allocated memory was 202.9 MB in the beginning and 254.8 MB in the end (delta: 51.9 MB). Free memory was 168.1 MB in the beginning and 141.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant [2019-05-23 11:19:33,681 WARN L146 ILogger]: unknown boogie variable #memory_int [2019-05-23 11:19:33,681 WARN L146 ILogger]: unknown boogie variable #memory_int [2019-05-23 11:19:33,682 WARN L146 ILogger]: unknown boogie variable #memory_int [2019-05-23 11:19:33,682 WARN L146 ILogger]: unknown boogie variable #memory_int Derived loop invariant: (((marker == unknown-#memory_int-unknown[a][a + 4 * pos] && a == 0) && (i < pos || i == pos)) && 0 < pos) || (((marker == unknown-#memory_int-unknown[a][a + 4 * pos] && a == 0) && 0 <= pos) && i == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. SAFE Result, 6.0s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 245 SDslu, 240 SDs, 0 SdLazy, 238 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 48 HoareAnnotationTreeSize, 2 FomulaSimplifications, 43 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 74 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 30958 SizeOfPredicates, 19 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...