java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:49:08,657 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:49:08,659 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:49:08,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:49:08,672 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:49:08,673 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:49:08,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:49:08,677 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:49:08,678 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:49:08,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:49:08,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:49:08,681 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:49:08,682 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:49:08,682 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:49:08,684 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:49:08,684 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:49:08,685 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:49:08,687 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:49:08,689 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:49:08,691 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:49:08,692 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:49:08,695 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:49:08,700 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:49:08,700 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:49:08,700 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:49:08,701 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:49:08,702 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:49:08,703 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:49:08,704 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:49:08,705 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:49:08,705 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:49:08,706 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:49:08,706 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:49:08,706 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:49:08,707 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:49:08,708 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:49:08,708 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:49:08,718 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:49:08,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:49:08,719 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:49:08,719 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:49:08,719 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:49:08,719 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:49:08,720 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:49:08,720 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:49:08,721 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:49:08,721 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:49:08,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:49:08,721 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:49:08,721 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:49:08,722 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:49:08,722 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:49:08,778 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:49:08,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:49:08,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:49:08,804 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:49:08,805 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:49:08,806 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-14 16:49:08,806 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl' [2018-10-14 16:49:08,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:49:08,894 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:49:08,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:49:08,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:49:08,895 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:49:08,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:08" (1/1) ... [2018-10-14 16:49:08,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:08" (1/1) ... [2018-10-14 16:49:08,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:08" (1/1) ... [2018-10-14 16:49:08,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:08" (1/1) ... [2018-10-14 16:49:08,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:08" (1/1) ... [2018-10-14 16:49:08,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:08" (1/1) ... [2018-10-14 16:49:08,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:08" (1/1) ... [2018-10-14 16:49:08,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:49:08,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:49:08,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:49:08,948 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:49:08,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:08" (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:1024 -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:1024 -smt2 -in -t:12000 [2018-10-14 16:49:09,013 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:49:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:49:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:49:09,697 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:49:09,698 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:09 BoogieIcfgContainer [2018-10-14 16:49:09,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:49:09,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:49:09,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:49:09,704 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:49:09,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:08" (1/2) ... [2018-10-14 16:49:09,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb92943 and model type openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:49:09, skipping insertion in model container [2018-10-14 16:49:09,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:09" (2/2) ... [2018-10-14 16:49:09,707 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-14 16:49:09,717 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:49:09,726 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:49:09,744 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:49:09,773 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:49:09,774 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:49:09,774 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:49:09,774 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:49:09,774 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:49:09,774 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:49:09,774 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:49:09,775 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:49:09,775 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:49:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2018-10-14 16:49:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-14 16:49:09,806 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:49:09,808 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:49:09,809 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:49:09,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:49:09,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1549736606, now seen corresponding path program 1 times [2018-10-14 16:49:09,878 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:49:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:49:11,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:49:11,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:49:11,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-10-14 16:49:11,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-14 16:49:11,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-14 16:49:11,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-10-14 16:49:11,043 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 16 states. [2018-10-14 16:49:13,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:49:13,067 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-10-14 16:49:13,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-14 16:49:13,068 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 60 [2018-10-14 16:49:13,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:49:13,082 INFO L225 Difference]: With dead ends: 117 [2018-10-14 16:49:13,082 INFO L226 Difference]: Without dead ends: 117 [2018-10-14 16:49:13,086 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=220, Invalid=902, Unknown=0, NotChecked=0, Total=1122 [2018-10-14 16:49:13,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-10-14 16:49:13,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 96. [2018-10-14 16:49:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-10-14 16:49:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-10-14 16:49:13,144 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 60 [2018-10-14 16:49:13,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:49:13,145 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-10-14 16:49:13,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-14 16:49:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-10-14 16:49:13,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-14 16:49:13,151 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:49:13,153 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:49:13,154 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:49:13,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:49:13,154 INFO L82 PathProgramCache]: Analyzing trace with hash 611485399, now seen corresponding path program 1 times [2018-10-14 16:49:13,155 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:49:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:49:13,939 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 25 [2018-10-14 16:49:14,242 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-14 16:49:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:49:14,683 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:49:14,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-10-14 16:49:14,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-14 16:49:14,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-14 16:49:14,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2018-10-14 16:49:14,687 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 26 states. [2018-10-14 16:49:15,747 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2018-10-14 16:49:15,962 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2018-10-14 16:49:16,166 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2018-10-14 16:49:17,066 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-10-14 16:49:17,225 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2018-10-14 16:49:17,696 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-10-14 16:49:17,881 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-14 16:49:18,085 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2018-10-14 16:49:18,405 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2018-10-14 16:49:18,655 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2018-10-14 16:49:18,821 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2018-10-14 16:49:18,947 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-14 16:49:19,106 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-14 16:49:19,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:49:19,517 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-10-14 16:49:19,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-10-14 16:49:19,518 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 95 [2018-10-14 16:49:19,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:49:19,524 INFO L225 Difference]: With dead ends: 152 [2018-10-14 16:49:19,524 INFO L226 Difference]: Without dead ends: 152 [2018-10-14 16:49:19,527 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=524, Invalid=2128, Unknown=0, NotChecked=0, Total=2652 [2018-10-14 16:49:19,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-10-14 16:49:19,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 131. [2018-10-14 16:49:19,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-10-14 16:49:19,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-10-14 16:49:19,555 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 95 [2018-10-14 16:49:19,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:49:19,555 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-10-14 16:49:19,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-14 16:49:19,556 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-10-14 16:49:19,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-14 16:49:19,559 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:49:19,559 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:49:19,559 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:49:19,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:49:19,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1923479230, now seen corresponding path program 2 times [2018-10-14 16:49:19,562 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:49:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:49:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:49:21,446 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:49:21,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-10-14 16:49:21,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-10-14 16:49:21,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-10-14 16:49:21,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=983, Unknown=0, NotChecked=0, Total=1056 [2018-10-14 16:49:21,448 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 33 states. [2018-10-14 16:49:22,669 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-10-14 16:49:22,927 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2018-10-14 16:49:23,280 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2018-10-14 16:49:23,570 WARN L179 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2018-10-14 16:49:24,065 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2018-10-14 16:49:24,527 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-14 16:49:24,766 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-14 16:49:25,176 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2018-10-14 16:49:25,440 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-10-14 16:49:25,992 WARN L179 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2018-10-14 16:49:26,499 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2018-10-14 16:49:26,757 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2018-10-14 16:49:27,070 WARN L179 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-10-14 16:49:27,401 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2018-10-14 16:49:28,034 WARN L179 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2018-10-14 16:49:28,361 WARN L179 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2018-10-14 16:49:28,662 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2018-10-14 16:49:28,836 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2018-10-14 16:49:29,052 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2018-10-14 16:49:29,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:49:29,230 INFO L93 Difference]: Finished difference Result 187 states and 187 transitions. [2018-10-14 16:49:29,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-14 16:49:29,231 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 130 [2018-10-14 16:49:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:49:29,233 INFO L225 Difference]: With dead ends: 187 [2018-10-14 16:49:29,233 INFO L226 Difference]: Without dead ends: 187 [2018-10-14 16:49:29,236 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=635, Invalid=3525, Unknown=0, NotChecked=0, Total=4160 [2018-10-14 16:49:29,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-10-14 16:49:29,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 166. [2018-10-14 16:49:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-10-14 16:49:29,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2018-10-14 16:49:29,250 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 130 [2018-10-14 16:49:29,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:49:29,251 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2018-10-14 16:49:29,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-10-14 16:49:29,251 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2018-10-14 16:49:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-10-14 16:49:29,253 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:49:29,254 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:49:29,254 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:49:29,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:49:29,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1272981769, now seen corresponding path program 3 times [2018-10-14 16:49:29,255 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:49:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:49:29,855 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 16:49:30,058 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-14 16:49:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-14 16:49:30,957 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:49:30,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-14 16:49:30,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-14 16:49:30,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-14 16:49:30,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=923, Unknown=0, NotChecked=0, Total=992 [2018-10-14 16:49:30,959 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand 32 states. [2018-10-14 16:49:32,968 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-10-14 16:49:33,171 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2018-10-14 16:49:33,621 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2018-10-14 16:49:33,826 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-14 16:49:34,066 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-10-14 16:49:34,290 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2018-10-14 16:49:34,534 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2018-10-14 16:49:34,772 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-10-14 16:49:34,966 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2018-10-14 16:49:35,259 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2018-10-14 16:49:35,648 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2018-10-14 16:49:35,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:49:35,664 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-10-14 16:49:35,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-14 16:49:35,665 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 165 [2018-10-14 16:49:35,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:49:35,666 INFO L225 Difference]: With dead ends: 164 [2018-10-14 16:49:35,666 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:49:35,669 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=690, Invalid=3342, Unknown=0, NotChecked=0, Total=4032 [2018-10-14 16:49:35,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:49:35,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:49:35,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:49:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:49:35,670 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2018-10-14 16:49:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:49:35,670 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:49:35,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-14 16:49:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:49:35,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:49:35,676 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:49:35 BoogieIcfgContainer [2018-10-14 16:49:35,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:49:35,677 INFO L168 Benchmark]: Toolchain (without parser) took 26784.06 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 358.1 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -142.9 MB). Peak memory consumption was 215.2 MB. Max. memory is 7.1 GB. [2018-10-14 16:49:35,678 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:49:35,679 INFO L168 Benchmark]: Boogie Preprocessor took 52.43 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. [2018-10-14 16:49:35,679 INFO L168 Benchmark]: RCFGBuilder took 751.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:49:35,680 INFO L168 Benchmark]: TraceAbstraction took 25976.05 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 358.1 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -174.6 MB). Peak memory consumption was 183.5 MB. Max. memory is 7.1 GB. [2018-10-14 16:49:35,684 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.43 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. * RCFGBuilder took 751.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25976.05 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 358.1 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -174.6 MB). Peak memory consumption was 183.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 167]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 1 error locations. SAFE Result, 25.9s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 19.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 239 SDtfs, 4254 SDslu, 2935 SDs, 0 SdLazy, 3879 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1483 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=3, 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, 63 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 450 NumberOfCodeBlocks, 450 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 915179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 31/158 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-49-35-695.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-49-35-695.csv Received shutdown request...