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_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:41:20,874 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:41:20,876 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:41:20,891 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:41:20,892 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:41:20,893 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:41:20,896 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:41:20,897 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:41:20,899 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:41:20,900 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:41:20,901 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:41:20,901 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:41:20,902 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:41:20,903 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:41:20,904 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:41:20,905 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:41:20,906 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:41:20,908 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:41:20,909 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:41:20,911 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:41:20,912 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:41:20,913 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:41:20,916 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:41:20,930 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 15:41:20,948 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:41:20,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:41:20,949 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:41:20,950 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:41:20,950 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:41:20,950 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:41:20,951 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:41:20,951 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:41:20,951 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:41:20,951 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:41:20,951 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:41:20,956 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:41:20,956 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:41:20,958 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:41:20,958 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:41:21,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:41:21,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:41:21,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:41:21,028 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:41:21,028 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:41:21,029 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl [2018-10-10 15:41:21,029 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl' [2018-10-10 15:41:21,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:41:21,133 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:41:21,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:41:21,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:41:21,134 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:41:21,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:21" (1/1) ... [2018-10-10 15:41:21,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:21" (1/1) ... [2018-10-10 15:41:21,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:21" (1/1) ... [2018-10-10 15:41:21,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:21" (1/1) ... [2018-10-10 15:41:21,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:21" (1/1) ... [2018-10-10 15:41:21,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:21" (1/1) ... [2018-10-10 15:41:21,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:21" (1/1) ... [2018-10-10 15:41:21,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:41:21,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:41:21,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:41:21,241 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:41:21,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:21" (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 15:41:21,327 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:41:21,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:41:21,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:41:22,290 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:41:22,290 INFO L202 PluginConnector]: Adding new model openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:41:22 BoogieIcfgContainer [2018-10-10 15:41:22,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:41:22,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:41:22,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:41:22,295 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:41:22,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:21" (1/2) ... [2018-10-10 15:41:22,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54518320 and model type openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:41:22, skipping insertion in model container [2018-10-10 15:41:22,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:41:22" (2/2) ... [2018-10-10 15:41:22,298 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl [2018-10-10 15:41:22,308 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:41:22,316 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:41:22,333 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:41:22,359 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:41:22,360 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:41:22,360 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:41:22,360 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:41:22,360 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:41:22,360 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:41:22,361 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:41:22,361 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:41:22,361 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:41:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2018-10-10 15:41:22,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-10 15:41:22,397 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:22,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:22,399 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:22,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:22,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1242541775, now seen corresponding path program 1 times [2018-10-10 15:41:22,453 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:24,302 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-10 15:41:25,726 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 15:41:25,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:41:25,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2018-10-10 15:41:25,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-10-10 15:41:25,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-10-10 15:41:25,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1101, Unknown=0, NotChecked=0, Total=1190 [2018-10-10 15:41:25,754 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 35 states. [2018-10-10 15:41:28,828 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-10-10 15:41:29,180 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-10 15:41:29,502 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2018-10-10 15:41:29,970 WARN L178 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2018-10-10 15:41:30,378 WARN L178 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2018-10-10 15:41:30,846 WARN L178 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2018-10-10 15:41:31,270 WARN L178 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2018-10-10 15:41:31,967 WARN L178 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2018-10-10 15:41:32,568 WARN L178 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2018-10-10 15:41:32,893 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-10-10 15:41:33,178 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-10-10 15:41:33,420 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-10 15:41:33,736 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2018-10-10 15:41:34,049 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-10 15:41:34,380 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-10-10 15:41:35,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:35,518 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-10-10 15:41:35,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-10-10 15:41:35,526 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 138 [2018-10-10 15:41:35,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:35,554 INFO L225 Difference]: With dead ends: 167 [2018-10-10 15:41:35,555 INFO L226 Difference]: Without dead ends: 167 [2018-10-10 15:41:35,559 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=627, Invalid=4629, Unknown=0, NotChecked=0, Total=5256 [2018-10-10 15:41:35,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-10-10 15:41:35,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 154. [2018-10-10 15:41:35,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-10-10 15:41:35,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-10-10 15:41:35,632 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 138 [2018-10-10 15:41:35,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:35,636 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-10-10 15:41:35,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-10-10 15:41:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-10-10 15:41:35,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-10 15:41:35,641 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:35,642 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:35,642 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:35,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:35,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1931521636, now seen corresponding path program 1 times [2018-10-10 15:41:35,644 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:37,701 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:37,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-10-10 15:41:37,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-10-10 15:41:37,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-10-10 15:41:37,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1251, Unknown=0, NotChecked=0, Total=1332 [2018-10-10 15:41:37,705 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 37 states. [2018-10-10 15:41:39,180 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-10-10 15:41:40,102 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-10-10 15:41:40,330 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-10-10 15:41:40,690 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-10 15:41:40,884 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 15:41:41,209 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-10 15:41:41,398 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 15:41:41,723 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-10 15:41:42,110 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-10-10 15:41:42,865 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2018-10-10 15:41:43,733 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2018-10-10 15:41:43,969 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-10 15:41:44,343 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-10-10 15:41:45,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:45,238 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-10-10 15:41:45,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-10-10 15:41:45,238 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 153 [2018-10-10 15:41:45,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:45,242 INFO L225 Difference]: With dead ends: 182 [2018-10-10 15:41:45,242 INFO L226 Difference]: Without dead ends: 182 [2018-10-10 15:41:45,246 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=538, Invalid=5624, Unknown=0, NotChecked=0, Total=6162 [2018-10-10 15:41:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-10-10 15:41:45,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 169. [2018-10-10 15:41:45,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-10-10 15:41:45,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2018-10-10 15:41:45,258 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 153 [2018-10-10 15:41:45,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:45,259 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2018-10-10 15:41:45,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-10-10 15:41:45,260 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2018-10-10 15:41:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-10-10 15:41:45,262 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:45,262 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:45,263 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:45,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:45,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1644694993, now seen corresponding path program 2 times [2018-10-10 15:41:45,264 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:45,913 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-10 15:41:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:47,845 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:47,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-10-10 15:41:47,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-10-10 15:41:47,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-10-10 15:41:47,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1620, Unknown=0, NotChecked=0, Total=1722 [2018-10-10 15:41:47,847 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand 42 states. [2018-10-10 15:41:50,610 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 15:41:50,830 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-10 15:41:50,998 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 15:41:52,367 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2018-10-10 15:41:53,385 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2018-10-10 15:41:53,665 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2018-10-10 15:41:53,939 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-10-10 15:41:54,582 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2018-10-10 15:41:54,796 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2018-10-10 15:41:55,046 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2018-10-10 15:41:55,498 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2018-10-10 15:41:56,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:56,057 INFO L93 Difference]: Finished difference Result 197 states and 197 transitions. [2018-10-10 15:41:56,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-10-10 15:41:56,058 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 168 [2018-10-10 15:41:56,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:56,062 INFO L225 Difference]: With dead ends: 197 [2018-10-10 15:41:56,062 INFO L226 Difference]: Without dead ends: 197 [2018-10-10 15:41:56,064 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=667, Invalid=7165, Unknown=0, NotChecked=0, Total=7832 [2018-10-10 15:41:56,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-10-10 15:41:56,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 184. [2018-10-10 15:41:56,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-10-10 15:41:56,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 184 transitions. [2018-10-10 15:41:56,076 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 184 transitions. Word has length 168 [2018-10-10 15:41:56,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:56,077 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 184 transitions. [2018-10-10 15:41:56,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-10-10 15:41:56,077 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 184 transitions. [2018-10-10 15:41:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-10 15:41:56,080 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:56,080 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:56,081 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:56,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:56,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1778565372, now seen corresponding path program 3 times [2018-10-10 15:41:56,082 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 19 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:58,103 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:58,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-10-10 15:41:58,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-10-10 15:41:58,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-10-10 15:41:58,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1702, Unknown=0, NotChecked=0, Total=1806 [2018-10-10 15:41:58,105 INFO L87 Difference]: Start difference. First operand 184 states and 184 transitions. Second operand 43 states. [2018-10-10 15:42:01,024 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 15:42:01,252 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-10 15:42:01,451 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 15:42:02,563 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2018-10-10 15:42:02,882 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2018-10-10 15:42:03,379 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-10-10 15:42:03,937 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2018-10-10 15:42:04,140 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2018-10-10 15:42:04,787 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2018-10-10 15:42:04,984 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2018-10-10 15:42:05,689 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2018-10-10 15:42:05,905 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2018-10-10 15:42:06,147 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2018-10-10 15:42:06,379 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2018-10-10 15:42:06,569 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-10 15:42:06,903 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2018-10-10 15:42:07,283 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2018-10-10 15:42:07,490 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2018-10-10 15:42:08,214 WARN L178 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2018-10-10 15:42:08,502 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2018-10-10 15:42:08,734 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2018-10-10 15:42:08,958 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-10 15:42:09,161 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2018-10-10 15:42:09,328 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2018-10-10 15:42:09,551 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2018-10-10 15:42:09,773 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-10-10 15:42:09,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:09,808 INFO L93 Difference]: Finished difference Result 195 states and 195 transitions. [2018-10-10 15:42:09,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-10-10 15:42:09,809 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 183 [2018-10-10 15:42:09,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:09,809 INFO L225 Difference]: With dead ends: 195 [2018-10-10 15:42:09,810 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:42:09,813 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2002 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1321, Invalid=8981, Unknown=0, NotChecked=0, Total=10302 [2018-10-10 15:42:09,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:42:09,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:42:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:42:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:42:09,814 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 183 [2018-10-10 15:42:09,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:09,814 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:42:09,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-10-10 15:42:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:42:09,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:42:09,819 INFO L202 PluginConnector]: Adding new model openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:42:09 BoogieIcfgContainer [2018-10-10 15:42:09,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:42:09,820 INFO L168 Benchmark]: Toolchain (without parser) took 48688.35 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 467.7 MB). Free memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: -344.0 MB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:42:09,821 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 15:42:09,822 INFO L168 Benchmark]: Boogie Preprocessor took 105.88 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 15:42:09,822 INFO L168 Benchmark]: RCFGBuilder took 1050.36 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:42:09,823 INFO L168 Benchmark]: TraceAbstraction took 47527.95 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 467.7 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -386.2 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2018-10-10 15:42:09,826 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 0.20 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 105.88 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 1050.36 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 47527.95 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 467.7 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -386.2 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 249]: 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, 146 locations, 1 error locations. SAFE Result, 47.4s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 37.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 335 SDtfs, 3374 SDslu, 7913 SDs, 0 SdLazy, 10288 SolverSat, 238 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 351 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 335 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5432 ImplicationChecksByTransitivity, 32.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred 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, 0.3s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 642 NumberOfCodeBlocks, 642 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 2125295 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 19/120 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_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-42-09-837.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-42-09-837.csv Received shutdown request...