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_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:41:42,259 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:41:42,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:41:42,273 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:41:42,273 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:41:42,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:41:42,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:41:42,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:41:42,279 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:41:42,280 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:41:42,281 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:41:42,310 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:41:42,327 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:41:42,327 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:41:42,328 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:41:42,329 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:41:42,329 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:41:42,329 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:41:42,330 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:41:42,330 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:41:42,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:41:42,330 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:41:42,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:41:42,331 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:41:42,333 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:41:42,334 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:41:42,334 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:41:42,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:41:42,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:41:42,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:41:42,397 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:41:42,398 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:41:42,399 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-10 15:41:42,399 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl' [2018-10-10 15:41:42,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:41:42,472 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:41:42,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:41:42,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:41:42,473 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:41:42,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:42" (1/1) ... [2018-10-10 15:41:42,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:42" (1/1) ... [2018-10-10 15:41:42,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:42" (1/1) ... [2018-10-10 15:41:42,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:42" (1/1) ... [2018-10-10 15:41:42,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:42" (1/1) ... [2018-10-10 15:41:42,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:42" (1/1) ... [2018-10-10 15:41:42,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:42" (1/1) ... [2018-10-10 15:41:42,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:41:42,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:41:42,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:41:42,559 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:41:42,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:42" (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 [2018-10-10 15:41:42,635 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:41:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:41:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:41:43,238 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:41:43,239 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:41:43 BoogieIcfgContainer [2018-10-10 15:41:43,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:41:43,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:41:43,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:41:43,244 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:41:43,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:42" (1/2) ... [2018-10-10 15:41:43,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59401939 and model type openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:41:43, skipping insertion in model container [2018-10-10 15:41:43,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:41:43" (2/2) ... [2018-10-10 15:41:43,247 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-10 15:41:43,257 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:41:43,268 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:41:43,285 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:41:43,314 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:41:43,315 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:41:43,315 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:41:43,315 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:41:43,316 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:41:43,316 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:41:43,316 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:41:43,316 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:41:43,316 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:41:43,336 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2018-10-10 15:41:43,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-10 15:41:43,348 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:43,349 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, 1, 1, 1, 1] [2018-10-10 15:41:43,350 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:43,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:43,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1489230013, now seen corresponding path program 1 times [2018-10-10 15:41:43,417 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:44,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:44,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:41:44,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 15:41:44,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:41:44,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:41:44,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:41:44,417 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 12 states. [2018-10-10 15:41:44,987 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-10 15:41:45,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:45,706 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-10-10 15:41:45,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 15:41:45,709 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2018-10-10 15:41:45,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:45,722 INFO L225 Difference]: With dead ends: 118 [2018-10-10 15:41:45,722 INFO L226 Difference]: Without dead ends: 118 [2018-10-10 15:41:45,726 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2018-10-10 15:41:45,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-10-10 15:41:45,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2018-10-10 15:41:45,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-10-10 15:41:45,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-10-10 15:41:45,773 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 70 [2018-10-10 15:41:45,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:45,774 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-10-10 15:41:45,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:41:45,775 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-10-10 15:41:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-10 15:41:45,779 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:45,779 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:41:45,779 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:45,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:45,780 INFO L82 PathProgramCache]: Analyzing trace with hash 87157522, now seen corresponding path program 1 times [2018-10-10 15:41:45,781 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:46,473 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-10-10 15:41:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:47,553 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:47,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-10 15:41:47,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-10 15:41:47,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-10 15:41:47,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-10-10 15:41:47,557 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 28 states. [2018-10-10 15:41:49,557 WARN L178 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-10-10 15:41:49,810 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-10 15:41:50,234 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-10-10 15:41:50,398 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-10-10 15:41:50,622 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-10-10 15:41:50,950 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-10-10 15:41:51,319 WARN L178 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2018-10-10 15:41:51,585 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-10-10 15:41:51,844 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2018-10-10 15:41:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:53,589 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-10-10 15:41:53,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-10 15:41:53,590 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 105 [2018-10-10 15:41:53,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:53,595 INFO L225 Difference]: With dead ends: 153 [2018-10-10 15:41:53,596 INFO L226 Difference]: Without dead ends: 153 [2018-10-10 15:41:53,598 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2018-10-10 15:41:53,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-10-10 15:41:53,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 141. [2018-10-10 15:41:53,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-10-10 15:41:53,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2018-10-10 15:41:53,612 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 105 [2018-10-10 15:41:53,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:53,614 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2018-10-10 15:41:53,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-10 15:41:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2018-10-10 15:41:53,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-10 15:41:53,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:53,617 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:41:53,618 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:53,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:53,618 INFO L82 PathProgramCache]: Analyzing trace with hash 486035613, now seen corresponding path program 2 times [2018-10-10 15:41:53,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:55,913 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:55,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-10 15:41:55,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-10 15:41:55,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-10 15:41:55,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1312, Unknown=0, NotChecked=0, Total=1406 [2018-10-10 15:41:55,916 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand 38 states. [2018-10-10 15:41:58,575 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-10-10 15:41:58,923 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-10 15:41:59,264 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-10 15:41:59,542 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-10 15:41:59,817 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-10 15:42:00,014 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-10 15:42:00,327 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 15:42:00,534 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-10 15:42:01,141 WARN L178 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-10-10 15:42:01,622 WARN L178 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2018-10-10 15:42:02,058 WARN L178 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2018-10-10 15:42:02,280 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-10 15:42:02,623 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-10-10 15:42:02,942 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-10 15:42:03,421 WARN L178 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2018-10-10 15:42:03,889 WARN L178 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-10-10 15:42:04,350 WARN L178 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2018-10-10 15:42:04,782 WARN L178 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-10-10 15:42:04,966 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-10 15:42:05,188 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-10-10 15:42:05,629 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-10 15:42:05,908 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-10 15:42:06,144 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2018-10-10 15:42:06,420 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2018-10-10 15:42:06,661 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2018-10-10 15:42:07,068 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-10 15:42:07,257 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-10 15:42:07,471 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-10 15:42:07,854 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-10-10 15:42:07,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:07,921 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2018-10-10 15:42:07,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-10-10 15:42:07,921 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 140 [2018-10-10 15:42:07,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:07,925 INFO L225 Difference]: With dead ends: 188 [2018-10-10 15:42:07,925 INFO L226 Difference]: Without dead ends: 188 [2018-10-10 15:42:07,928 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=1102, Invalid=5060, Unknown=0, NotChecked=0, Total=6162 [2018-10-10 15:42:07,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-10-10 15:42:07,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 176. [2018-10-10 15:42:07,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-10-10 15:42:07,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2018-10-10 15:42:07,943 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 140 [2018-10-10 15:42:07,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:07,944 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2018-10-10 15:42:07,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-10 15:42:07,944 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2018-10-10 15:42:07,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-10 15:42:07,947 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:07,947 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:42:07,947 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:07,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:07,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1325623090, now seen corresponding path program 3 times [2018-10-10 15:42:07,949 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:08,785 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-10 15:42:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-10 15:42:10,465 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:42:10,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-10 15:42:10,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-10 15:42:10,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-10 15:42:10,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1306, Unknown=0, NotChecked=0, Total=1406 [2018-10-10 15:42:10,467 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand 38 states. [2018-10-10 15:42:12,180 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-10 15:42:12,566 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2018-10-10 15:42:12,942 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2018-10-10 15:42:13,581 WARN L178 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2018-10-10 15:42:13,889 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-10-10 15:42:14,309 WARN L178 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2018-10-10 15:42:14,742 WARN L178 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2018-10-10 15:42:15,163 WARN L178 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112 [2018-10-10 15:42:15,588 WARN L178 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2018-10-10 15:42:16,000 WARN L178 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2018-10-10 15:42:16,407 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 114 [2018-10-10 15:42:16,611 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-10 15:42:16,951 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-10 15:42:17,631 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-10 15:42:18,163 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2018-10-10 15:42:18,484 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-10-10 15:42:18,767 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2018-10-10 15:42:19,204 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2018-10-10 15:42:19,524 WARN L178 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2018-10-10 15:42:20,032 WARN L178 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2018-10-10 15:42:20,671 WARN L178 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 117 [2018-10-10 15:42:21,304 WARN L178 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 120 [2018-10-10 15:42:21,944 WARN L178 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2018-10-10 15:42:22,506 WARN L178 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2018-10-10 15:42:22,716 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-10-10 15:42:22,917 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-10 15:42:23,167 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-10-10 15:42:23,359 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-10 15:42:23,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:23,859 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2018-10-10 15:42:23,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-10-10 15:42:23,859 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 175 [2018-10-10 15:42:23,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:23,861 INFO L225 Difference]: With dead ends: 174 [2018-10-10 15:42:23,861 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:42:23,864 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=1551, Invalid=5759, Unknown=0, NotChecked=0, Total=7310 [2018-10-10 15:42:23,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:42:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:42:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:42:23,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:42:23,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2018-10-10 15:42:23,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:23,865 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:42:23,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-10 15:42:23,865 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:42:23,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:42:23,871 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:42:23 BoogieIcfgContainer [2018-10-10 15:42:23,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:42:23,872 INFO L168 Benchmark]: Toolchain (without parser) took 41401.46 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 405.3 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -37.4 MB). Peak memory consumption was 367.9 MB. Max. memory is 7.1 GB. [2018-10-10 15:42:23,874 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. [2018-10-10 15:42:23,874 INFO L168 Benchmark]: Boogie Preprocessor took 85.42 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. [2018-10-10 15:42:23,875 INFO L168 Benchmark]: RCFGBuilder took 680.42 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. [2018-10-10 15:42:23,876 INFO L168 Benchmark]: TraceAbstraction took 40630.81 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 405.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -69.1 MB). Peak memory consumption was 336.1 MB. Max. memory is 7.1 GB. [2018-10-10 15:42:23,879 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 85.42 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 680.42 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 40630.81 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 405.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -69.1 MB). Peak memory consumption was 336.1 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, 40.5s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 32.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 269 SDtfs, 4713 SDslu, 3312 SDs, 0 SdLazy, 4393 SolverSat, 233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2410 ImplicationChecksByTransitivity, 31.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred 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, 7.0s InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 1114262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 11/218 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_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-42-23-893.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-42-23-893.csv Received shutdown request...