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_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:50:27,176 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:50:27,178 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:50:27,191 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:50:27,191 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:50:27,192 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:50:27,193 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:50:27,195 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:50:27,197 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:50:27,198 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:50:27,199 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:50:27,199 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:50:27,200 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:50:27,201 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:50:27,202 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:50:27,203 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:50:27,204 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:50:27,205 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:50:27,207 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:50:27,209 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:50:27,210 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:50:27,211 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:50:27,214 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:50:27,214 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:50:27,214 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:50:27,215 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:50:27,216 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:50:27,217 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:50:27,218 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:50:27,219 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:50:27,219 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:50:27,220 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:50:27,220 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:50:27,220 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:50:27,221 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:50:27,222 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:50:27,223 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 16:50:27,232 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:50:27,232 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:50:27,233 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:50:27,233 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:50:27,234 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:50:27,234 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:50:27,234 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:50:27,235 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:50:27,235 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:50:27,235 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:50:27,235 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:50:27,236 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:50:27,236 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:50:27,237 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:50:27,237 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:50:27,294 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:50:27,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:50:27,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:50:27,312 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:50:27,313 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:50:27,314 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:50:27,314 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl' [2018-10-14 16:50:27,387 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:50:27,388 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:50:27,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:50:27,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:50:27,389 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:50:27,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:27" (1/1) ... [2018-10-14 16:50:27,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:27" (1/1) ... [2018-10-14 16:50:27,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:27" (1/1) ... [2018-10-14 16:50:27,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:27" (1/1) ... [2018-10-14 16:50:27,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:27" (1/1) ... [2018-10-14 16:50:27,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:27" (1/1) ... [2018-10-14 16:50:27,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:27" (1/1) ... [2018-10-14 16:50:27,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:50:27,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:50:27,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:50:27,472 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:50:27,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:27" (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 16:50:27,556 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:50:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:50:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:50:28,180 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:50:28,181 INFO L202 PluginConnector]: Adding new model openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:50:28 BoogieIcfgContainer [2018-10-14 16:50:28,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:50:28,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:50:28,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:50:28,188 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:50:28,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:27" (1/2) ... [2018-10-14 16:50:28,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ffe9f9 and model type openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:50:28, skipping insertion in model container [2018-10-14 16:50:28,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:50:28" (2/2) ... [2018-10-14 16:50:28,192 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:50:28,204 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:50:28,214 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:50:28,232 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:50:28,267 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:50:28,268 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:50:28,268 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:50:28,268 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:50:28,268 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:50:28,268 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:50:28,269 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:50:28,269 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:50:28,269 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:50:28,294 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2018-10-14 16:50:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-14 16:50:28,307 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:28,308 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, 1] [2018-10-14 16:50:28,309 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:28,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:28,316 INFO L82 PathProgramCache]: Analyzing trace with hash -750967619, now seen corresponding path program 1 times [2018-10-14 16:50:28,368 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:29,338 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 16:50:29,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:50:29,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-14 16:50:29,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-14 16:50:29,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-14 16:50:29,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-10-14 16:50:29,367 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 13 states. [2018-10-14 16:50:30,283 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-14 16:50:30,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:30,773 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-10-14 16:50:30,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-14 16:50:30,776 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2018-10-14 16:50:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:30,797 INFO L225 Difference]: With dead ends: 108 [2018-10-14 16:50:30,797 INFO L226 Difference]: Without dead ends: 108 [2018-10-14 16:50:30,800 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2018-10-14 16:50:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-10-14 16:50:30,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 96. [2018-10-14 16:50:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-10-14 16:50:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-10-14 16:50:30,873 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 66 [2018-10-14 16:50:30,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:30,874 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-10-14 16:50:30,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-14 16:50:30,875 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-10-14 16:50:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-14 16:50:30,880 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:30,880 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, 1] [2018-10-14 16:50:30,881 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:30,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:30,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1020336687, now seen corresponding path program 1 times [2018-10-14 16:50:30,883 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:31,774 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2018-10-14 16:50:32,673 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:50:32,673 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:50:32,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-14 16:50:32,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-14 16:50:32,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-14 16:50:32,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=750, Unknown=0, NotChecked=0, Total=812 [2018-10-14 16:50:32,678 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 29 states. [2018-10-14 16:50:33,964 WARN L179 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-14 16:50:34,173 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-10-14 16:50:34,345 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-10-14 16:50:35,240 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-10-14 16:50:35,437 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-10-14 16:50:35,654 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2018-10-14 16:50:35,893 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-10-14 16:50:36,151 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2018-10-14 16:50:36,458 WARN L179 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-10-14 16:50:36,814 WARN L179 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2018-10-14 16:50:37,104 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2018-10-14 16:50:37,398 WARN L179 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2018-10-14 16:50:37,742 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-10-14 16:50:37,930 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2018-10-14 16:50:38,345 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-14 16:50:38,545 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-14 16:50:38,720 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-14 16:50:38,933 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-10-14 16:50:39,176 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-14 16:50:39,447 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-14 16:50:39,761 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2018-10-14 16:50:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:39,803 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-10-14 16:50:39,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-10-14 16:50:39,810 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 95 [2018-10-14 16:50:39,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:39,815 INFO L225 Difference]: With dead ends: 137 [2018-10-14 16:50:39,815 INFO L226 Difference]: Without dead ends: 137 [2018-10-14 16:50:39,817 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=780, Invalid=3126, Unknown=0, NotChecked=0, Total=3906 [2018-10-14 16:50:39,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-10-14 16:50:39,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2018-10-14 16:50:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-10-14 16:50:39,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2018-10-14 16:50:39,833 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 95 [2018-10-14 16:50:39,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:39,833 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2018-10-14 16:50:39,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-14 16:50:39,834 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2018-10-14 16:50:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-14 16:50:39,838 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:39,838 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, 1] [2018-10-14 16:50:39,838 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:39,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:39,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1925074435, now seen corresponding path program 2 times [2018-10-14 16:50:39,840 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:40,498 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 16:50:40,682 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-14 16:50:41,702 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-14 16:50:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:50:42,920 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:50:42,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-14 16:50:42,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-14 16:50:42,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-14 16:50:42,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1319, Unknown=0, NotChecked=0, Total=1406 [2018-10-14 16:50:42,922 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 38 states. [2018-10-14 16:50:44,852 WARN L179 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-14 16:50:45,191 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-14 16:50:45,502 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2018-10-14 16:50:45,697 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-14 16:50:46,271 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-14 16:50:46,531 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-14 16:50:46,781 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2018-10-14 16:50:47,121 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2018-10-14 16:50:47,441 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2018-10-14 16:50:47,801 WARN L179 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2018-10-14 16:50:48,196 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2018-10-14 16:50:48,448 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2018-10-14 16:50:48,925 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2018-10-14 16:50:49,252 WARN L179 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2018-10-14 16:50:49,697 WARN L179 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 108 [2018-10-14 16:50:50,190 WARN L179 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2018-10-14 16:50:50,629 WARN L179 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2018-10-14 16:50:51,031 WARN L179 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2018-10-14 16:50:51,458 WARN L179 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2018-10-14 16:50:51,884 WARN L179 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2018-10-14 16:50:52,233 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2018-10-14 16:50:52,518 WARN L179 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2018-10-14 16:50:52,838 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2018-10-14 16:50:53,100 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-14 16:50:53,327 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2018-10-14 16:50:53,750 WARN L179 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2018-10-14 16:50:53,996 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2018-10-14 16:50:54,257 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-14 16:50:54,621 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2018-10-14 16:50:54,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:54,667 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-10-14 16:50:54,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-10-14 16:50:54,669 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 124 [2018-10-14 16:50:54,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:54,671 INFO L225 Difference]: With dead ends: 166 [2018-10-14 16:50:54,671 INFO L226 Difference]: Without dead ends: 166 [2018-10-14 16:50:54,674 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=966, Invalid=5196, Unknown=0, NotChecked=0, Total=6162 [2018-10-14 16:50:54,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-10-14 16:50:54,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 154. [2018-10-14 16:50:54,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-10-14 16:50:54,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-10-14 16:50:54,687 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 124 [2018-10-14 16:50:54,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:54,687 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-10-14 16:50:54,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-14 16:50:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-10-14 16:50:54,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-14 16:50:54,692 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:54,692 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, 1] [2018-10-14 16:50:54,694 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:54,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:54,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1224829713, now seen corresponding path program 3 times [2018-10-14 16:50:54,695 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 83 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-14 16:50:56,889 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:50:56,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-10-14 16:50:56,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-10-14 16:50:56,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-10-14 16:50:56,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=2048, Unknown=0, NotChecked=0, Total=2162 [2018-10-14 16:50:56,891 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 47 states. [2018-10-14 16:50:58,586 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-10-14 16:51:00,186 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2018-10-14 16:51:00,373 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2018-10-14 16:51:01,880 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2018-10-14 16:51:02,112 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2018-10-14 16:51:02,390 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 102 [2018-10-14 16:51:03,055 WARN L179 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2018-10-14 16:51:03,382 WARN L179 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 102 [2018-10-14 16:51:03,693 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2018-10-14 16:51:04,039 WARN L179 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 110 [2018-10-14 16:51:04,395 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 114 [2018-10-14 16:51:04,718 WARN L179 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 110 [2018-10-14 16:51:05,049 WARN L179 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2018-10-14 16:51:05,440 WARN L179 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2018-10-14 16:51:05,827 WARN L179 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2018-10-14 16:51:06,172 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2018-10-14 16:51:06,425 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2018-10-14 16:51:06,730 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2018-10-14 16:51:06,971 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2018-10-14 16:51:07,233 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2018-10-14 16:51:07,602 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2018-10-14 16:51:07,954 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2018-10-14 16:51:08,206 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2018-10-14 16:51:08,637 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2018-10-14 16:51:09,036 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2018-10-14 16:51:09,484 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 108 [2018-10-14 16:51:09,870 WARN L179 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2018-10-14 16:51:10,825 WARN L179 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 116 [2018-10-14 16:51:11,191 WARN L179 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 112 [2018-10-14 16:51:11,486 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2018-10-14 16:51:11,819 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 107 [2018-10-14 16:51:12,194 WARN L179 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 111 [2018-10-14 16:51:12,538 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 107 [2018-10-14 16:51:12,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:51:12,563 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-10-14 16:51:12,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-10-14 16:51:12,564 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 153 [2018-10-14 16:51:12,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:51:12,565 INFO L225 Difference]: With dead ends: 152 [2018-10-14 16:51:12,565 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:51:12,569 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2016 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=1964, Invalid=10026, Unknown=0, NotChecked=0, Total=11990 [2018-10-14 16:51:12,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:51:12,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:51:12,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:51:12,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:51:12,570 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2018-10-14 16:51:12,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:51:12,571 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:51:12,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-10-14 16:51:12,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:51:12,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:51:12,575 INFO L202 PluginConnector]: Adding new model openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:51:12 BoogieIcfgContainer [2018-10-14 16:51:12,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:51:12,576 INFO L168 Benchmark]: Toolchain (without parser) took 45188.72 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 404.8 MB). Free memory was 1.5 GB in the beginning and 993.5 MB in the end (delta: 479.5 MB). Peak memory consumption was 884.3 MB. Max. memory is 7.1 GB. [2018-10-14 16:51:12,577 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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 16:51:12,578 INFO L168 Benchmark]: Boogie Preprocessor took 78.55 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 16:51:12,578 INFO L168 Benchmark]: RCFGBuilder took 709.72 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 16:51:12,579 INFO L168 Benchmark]: TraceAbstraction took 44390.37 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 404.8 MB). Free memory was 1.4 GB in the beginning and 993.5 MB in the end (delta: 447.8 MB). Peak memory consumption was 852.5 MB. Max. memory is 7.1 GB. [2018-10-14 16:51:12,582 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 0.21 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 78.55 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 709.72 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 44390.37 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 404.8 MB). Free memory was 1.4 GB in the beginning and 993.5 MB in the end (delta: 447.8 MB). Peak memory consumption was 852.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 166]: 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, 93 locations, 1 error locations. SAFE Result, 44.3s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 36.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 245 SDtfs, 3907 SDslu, 3682 SDs, 0 SdLazy, 5110 SolverSat, 189 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3368 ImplicationChecksByTransitivity, 35.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred 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, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 816241 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 19/146 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_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-51-12-593.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-51-12-593.csv Received shutdown request...