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_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:10:16,214 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:10:16,219 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:10:16,232 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:10:16,233 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:10:16,234 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:10:16,235 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:10:16,237 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:10:16,239 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:10:16,239 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:10:16,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 21:10:16,241 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 21:10:16,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 21:10:16,242 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 21:10:16,244 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 21:10:16,244 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 21:10:16,245 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 21:10:16,247 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 21:10:16,251 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 21:10:16,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 21:10:16,255 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 21:10:16,257 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 21:10:16,262 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 21:10:16,262 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 21:10:16,263 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 21:10:16,264 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 21:10:16,265 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 21:10:16,265 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 21:10:16,267 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 21:10:16,268 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 21:10:16,269 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 21:10:16,269 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 21:10:16,272 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 21:10:16,282 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:10:16,282 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:10:16,283 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:10:16,283 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:10:16,283 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:10:16,284 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:10:16,284 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:10:16,285 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:10:16,288 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:10:16,288 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:10:16,288 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:10:16,288 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:10:16,289 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:10:16,290 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:10:16,290 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:10:16,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:10:16,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:10:16,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:10:16,370 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:10:16,371 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:10:16,372 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-12 21:10:16,372 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-12 21:10:16,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:10:16,451 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:10:16,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:10:16,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:10:16,452 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:10:16,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:16" (1/1) ... [2018-10-12 21:10:16,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:16" (1/1) ... [2018-10-12 21:10:16,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:16" (1/1) ... [2018-10-12 21:10:16,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:16" (1/1) ... [2018-10-12 21:10:16,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:16" (1/1) ... [2018-10-12 21:10:16,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:16" (1/1) ... [2018-10-12 21:10:16,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:16" (1/1) ... [2018-10-12 21:10:16,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:10:16,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:10:16,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:10:16,532 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:10:16,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:16" (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 [2018-10-12 21:10:16,605 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:10:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:10:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:10:17,266 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:10:17,267 INFO L202 PluginConnector]: Adding new model openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:10:17 BoogieIcfgContainer [2018-10-12 21:10:17,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:10:17,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:10:17,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:10:17,271 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:10:17,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:16" (1/2) ... [2018-10-12 21:10:17,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fad749 and model type openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:10:17, skipping insertion in model container [2018-10-12 21:10:17,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:10:17" (2/2) ... [2018-10-12 21:10:17,275 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-12 21:10:17,285 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:10:17,295 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:10:17,312 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:10:17,346 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:10:17,347 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:10:17,347 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:10:17,347 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:10:17,347 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:10:17,347 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:10:17,348 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:10:17,348 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:10:17,348 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:10:17,371 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2018-10-12 21:10:17,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-12 21:10:17,396 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:17,398 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, 1, 1, 1, 1, 1] [2018-10-12 21:10:17,399 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:17,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:17,409 INFO L82 PathProgramCache]: Analyzing trace with hash 4404506, now seen corresponding path program 1 times [2018-10-12 21:10:17,470 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:18,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:10:18,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:10:18,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 21:10:18,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 21:10:18,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 21:10:18,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-12 21:10:18,271 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 12 states. [2018-10-12 21:10:18,914 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-12 21:10:19,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:19,795 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-10-12 21:10:19,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-12 21:10:19,797 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2018-10-12 21:10:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:19,811 INFO L225 Difference]: With dead ends: 108 [2018-10-12 21:10:19,811 INFO L226 Difference]: Without dead ends: 108 [2018-10-12 21:10:19,814 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2018-10-12 21:10:19,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-10-12 21:10:19,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 95. [2018-10-12 21:10:19,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-10-12 21:10:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2018-10-12 21:10:19,861 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 65 [2018-10-12 21:10:19,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:19,862 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2018-10-12 21:10:19,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 21:10:19,862 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-10-12 21:10:19,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-12 21:10:19,866 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:19,866 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-12 21:10:19,867 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:19,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:19,867 INFO L82 PathProgramCache]: Analyzing trace with hash -231942991, now seen corresponding path program 1 times [2018-10-12 21:10:19,869 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:20,619 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2018-10-12 21:10:21,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:10:21,360 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:21,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-12 21:10:21,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-12 21:10:21,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-12 21:10:21,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2018-10-12 21:10:21,364 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 27 states. [2018-10-12 21:10:23,338 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-12 21:10:23,557 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-10-12 21:10:24,009 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2018-10-12 21:10:24,229 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-10-12 21:10:24,763 WARN L178 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-10-12 21:10:24,963 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2018-10-12 21:10:25,177 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2018-10-12 21:10:25,504 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2018-10-12 21:10:25,855 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2018-10-12 21:10:26,166 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2018-10-12 21:10:26,339 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2018-10-12 21:10:26,491 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2018-10-12 21:10:26,627 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-12 21:10:26,836 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-12 21:10:27,073 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-12 21:10:27,285 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-12 21:10:27,832 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2018-10-12 21:10:27,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:27,889 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-10-12 21:10:27,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-10-12 21:10:27,891 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 94 [2018-10-12 21:10:27,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:27,893 INFO L225 Difference]: With dead ends: 137 [2018-10-12 21:10:27,893 INFO L226 Difference]: Without dead ends: 137 [2018-10-12 21:10:27,896 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=637, Invalid=2555, Unknown=0, NotChecked=0, Total=3192 [2018-10-12 21:10:27,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-10-12 21:10:27,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 124. [2018-10-12 21:10:27,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-10-12 21:10:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-10-12 21:10:27,909 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 94 [2018-10-12 21:10:27,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:27,910 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-10-12 21:10:27,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-12 21:10:27,910 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-10-12 21:10:27,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-12 21:10:27,912 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:27,913 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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, 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] [2018-10-12 21:10:27,913 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:27,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:27,914 INFO L82 PathProgramCache]: Analyzing trace with hash 2035601530, now seen corresponding path program 2 times [2018-10-12 21:10:27,915 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:30,392 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:10:30,392 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:30,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-12 21:10:30,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-12 21:10:30,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-12 21:10:30,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1178, Unknown=0, NotChecked=0, Total=1260 [2018-10-12 21:10:30,395 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 36 states. [2018-10-12 21:10:31,970 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-12 21:10:32,247 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-12 21:10:32,470 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2018-10-12 21:10:32,696 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-12 21:10:33,508 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-12 21:10:33,762 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-12 21:10:34,033 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2018-10-12 21:10:34,471 WARN L178 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-12 21:10:34,780 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2018-10-12 21:10:35,233 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2018-10-12 21:10:35,524 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2018-10-12 21:10:35,957 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2018-10-12 21:10:36,286 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-12 21:10:36,634 WARN L178 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2018-10-12 21:10:37,035 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2018-10-12 21:10:37,480 WARN L178 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2018-10-12 21:10:37,881 WARN L178 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2018-10-12 21:10:38,359 WARN L178 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 104 [2018-10-12 21:10:38,631 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2018-10-12 21:10:38,822 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2018-10-12 21:10:39,144 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2018-10-12 21:10:39,357 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-12 21:10:39,593 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2018-10-12 21:10:39,976 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2018-10-12 21:10:40,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:40,009 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-10-12 21:10:40,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-10-12 21:10:40,009 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 123 [2018-10-12 21:10:40,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:40,012 INFO L225 Difference]: With dead ends: 166 [2018-10-12 21:10:40,012 INFO L226 Difference]: Without dead ends: 166 [2018-10-12 21:10:40,014 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=788, Invalid=4324, Unknown=0, NotChecked=0, Total=5112 [2018-10-12 21:10:40,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-10-12 21:10:40,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 153. [2018-10-12 21:10:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-10-12 21:10:40,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2018-10-12 21:10:40,030 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 123 [2018-10-12 21:10:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:40,031 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2018-10-12 21:10:40,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-12 21:10:40,031 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2018-10-12 21:10:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-12 21:10:40,034 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:40,034 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 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, 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] [2018-10-12 21:10:40,034 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:40,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:40,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1264940369, now seen corresponding path program 3 times [2018-10-12 21:10:40,036 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:40,672 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-12 21:10:42,030 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-12 21:10:42,030 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:42,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-12 21:10:42,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-12 21:10:42,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-12 21:10:42,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=920, Unknown=0, NotChecked=0, Total=992 [2018-10-12 21:10:42,032 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 32 states. [2018-10-12 21:10:44,336 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2018-10-12 21:10:44,549 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2018-10-12 21:10:45,045 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2018-10-12 21:10:45,300 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2018-10-12 21:10:45,562 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2018-10-12 21:10:45,752 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2018-10-12 21:10:45,896 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-10-12 21:10:46,282 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2018-10-12 21:10:46,530 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2018-10-12 21:10:46,871 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2018-10-12 21:10:47,165 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2018-10-12 21:10:47,479 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2018-10-12 21:10:47,731 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2018-10-12 21:10:47,908 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-10-12 21:10:47,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:47,914 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2018-10-12 21:10:47,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-10-12 21:10:47,915 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 152 [2018-10-12 21:10:47,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:47,916 INFO L225 Difference]: With dead ends: 151 [2018-10-12 21:10:47,916 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:10:47,919 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=897, Invalid=3659, Unknown=0, NotChecked=0, Total=4556 [2018-10-12 21:10:47,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:10:47,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:10:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:10:47,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:10:47,920 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2018-10-12 21:10:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:47,921 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:10:47,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-12 21:10:47,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:10:47,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:10:47,926 INFO L202 PluginConnector]: Adding new model openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:10:47 BoogieIcfgContainer [2018-10-12 21:10:47,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:10:47,928 INFO L168 Benchmark]: Toolchain (without parser) took 31477.28 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 1.1 GB in the end (delta: 324.5 MB). Peak memory consumption was 682.6 MB. Max. memory is 7.1 GB. [2018-10-12 21:10:47,929 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. [2018-10-12 21:10:47,929 INFO L168 Benchmark]: Boogie Preprocessor took 78.05 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. [2018-10-12 21:10:47,930 INFO L168 Benchmark]: RCFGBuilder took 736.37 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. [2018-10-12 21:10:47,931 INFO L168 Benchmark]: TraceAbstraction took 30658.74 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 1.1 GB in the end (delta: 292.7 MB). Peak memory consumption was 650.8 MB. Max. memory is 7.1 GB. [2018-10-12 21:10:47,935 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 78.05 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 736.37 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 30658.74 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 1.1 GB in the end (delta: 292.7 MB). Peak memory consumption was 650.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 165]: 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, 92 locations, 1 error locations. SAFE Result, 30.5s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 23.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 249 SDtfs, 3713 SDslu, 3062 SDs, 0 SdLazy, 3465 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1684 ImplicationChecksByTransitivity, 23.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred 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, 39 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 430 ConstructedInterpolants, 0 QuantifiedInterpolants, 744065 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 26/146 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_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-10-47-946.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-10-47-946.csv Received shutdown request...