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_12.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:41:15,580 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:41:15,582 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:41:15,594 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:41:15,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:41:15,596 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:41:15,597 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:41:15,599 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:41:15,601 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:41:15,601 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:41:15,602 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:41:15,603 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:41:15,605 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:41:15,606 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:41:15,607 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:41:15,608 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:41:15,616 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:41:15,622 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:41:15,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:41:15,630 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:41:15,632 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:41:15,633 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:41:15,638 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:41:15,638 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:41:15,638 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:41:15,639 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:41:15,642 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:41:15,643 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:41:15,644 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:41:15,645 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:41:15,646 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:41:15,647 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 15:41:15,648 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 15:41:15,648 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 15:41:15,649 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 15:41:15,652 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 15:41:15,652 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 15:41:15,670 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:41:15,670 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:41:15,671 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:41:15,671 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:41:15,671 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:41:15,671 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:41:15,672 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:41:15,672 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:41:15,673 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:41:15,673 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:41:15,673 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:41:15,673 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:41:15,673 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:41:15,674 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:41:15,674 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:41:15,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:41:15,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:41:15,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:41:15,752 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:41:15,753 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:41:15,754 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl [2018-10-10 15:41:15,754 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl' [2018-10-10 15:41:15,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:41:15,833 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:41:15,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:41:15,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:41:15,834 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:41:15,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:15" (1/1) ... [2018-10-10 15:41:15,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:15" (1/1) ... [2018-10-10 15:41:15,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:15" (1/1) ... [2018-10-10 15:41:15,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:15" (1/1) ... [2018-10-10 15:41:15,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:15" (1/1) ... [2018-10-10 15:41:15,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:15" (1/1) ... [2018-10-10 15:41:15,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:15" (1/1) ... [2018-10-10 15:41:15,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:41:15,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:41:15,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:41:15,904 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:41:15,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:15" (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 15:41:15,983 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:41:15,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:41:15,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:41:16,890 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:41:16,891 INFO L202 PluginConnector]: Adding new model openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:41:16 BoogieIcfgContainer [2018-10-10 15:41:16,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:41:16,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:41:16,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:41:16,895 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:41:16,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:41:15" (1/2) ... [2018-10-10 15:41:16,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c82352f and model type openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:41:16, skipping insertion in model container [2018-10-10 15:41:16,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:41:16" (2/2) ... [2018-10-10 15:41:16,898 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl [2018-10-10 15:41:16,909 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:41:16,925 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:41:16,944 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:41:16,978 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:41:16,979 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:41:16,979 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:41:16,979 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:41:16,979 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:41:16,980 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:41:16,980 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:41:16,980 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:41:16,980 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:41:17,009 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2018-10-10 15:41:17,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-10-10 15:41:17,030 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:17,031 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] [2018-10-10 15:41:17,032 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:17,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:17,039 INFO L82 PathProgramCache]: Analyzing trace with hash -2113608598, now seen corresponding path program 1 times [2018-10-10 15:41:17,091 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:18,138 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-10 15:41:18,901 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 15:41:18,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:41:18,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-10-10 15:41:18,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-10 15:41:18,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-10 15:41:18,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2018-10-10 15:41:18,926 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 18 states. [2018-10-10 15:41:21,367 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-10-10 15:41:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:21,432 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2018-10-10 15:41:21,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-10 15:41:21,433 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 103 [2018-10-10 15:41:21,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:21,451 INFO L225 Difference]: With dead ends: 158 [2018-10-10 15:41:21,452 INFO L226 Difference]: Without dead ends: 158 [2018-10-10 15:41:21,454 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=355, Invalid=1127, Unknown=0, NotChecked=0, Total=1482 [2018-10-10 15:41:21,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-10-10 15:41:21,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 132. [2018-10-10 15:41:21,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-10-10 15:41:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-10-10 15:41:21,505 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 103 [2018-10-10 15:41:21,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:21,506 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-10-10 15:41:21,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-10 15:41:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-10-10 15:41:21,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-10 15:41:21,512 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:21,512 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:41:21,513 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:21,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:21,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1634338904, now seen corresponding path program 1 times [2018-10-10 15:41:21,515 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:22,764 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:22,765 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:22,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-10-10 15:41:22,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-10 15:41:22,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-10 15:41:22,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=545, Unknown=0, NotChecked=0, Total=600 [2018-10-10 15:41:22,768 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 25 states. [2018-10-10 15:41:23,742 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2018-10-10 15:41:24,016 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2018-10-10 15:41:24,293 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-10-10 15:41:24,476 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-10 15:41:24,664 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-10 15:41:26,007 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2018-10-10 15:41:26,255 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-10 15:41:26,466 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2018-10-10 15:41:27,131 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-10 15:41:27,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:27,761 INFO L93 Difference]: Finished difference Result 186 states and 186 transitions. [2018-10-10 15:41:27,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-10-10 15:41:27,761 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 131 [2018-10-10 15:41:27,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:27,764 INFO L225 Difference]: With dead ends: 186 [2018-10-10 15:41:27,764 INFO L226 Difference]: Without dead ends: 186 [2018-10-10 15:41:27,766 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=298, Invalid=1864, Unknown=0, NotChecked=0, Total=2162 [2018-10-10 15:41:27,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-10-10 15:41:27,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 160. [2018-10-10 15:41:27,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-10-10 15:41:27,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2018-10-10 15:41:27,780 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 131 [2018-10-10 15:41:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:27,781 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2018-10-10 15:41:27,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-10-10 15:41:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2018-10-10 15:41:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-10-10 15:41:27,784 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:27,784 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:27,784 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:27,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:27,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1003690822, now seen corresponding path program 2 times [2018-10-10 15:41:27,786 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:30,592 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:30,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-10-10 15:41:30,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-10-10 15:41:30,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-10-10 15:41:30,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1792, Unknown=0, NotChecked=0, Total=1892 [2018-10-10 15:41:30,594 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 44 states. [2018-10-10 15:41:31,875 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2018-10-10 15:41:32,155 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2018-10-10 15:41:32,787 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2018-10-10 15:41:33,235 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2018-10-10 15:41:33,637 WARN L178 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2018-10-10 15:41:33,956 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-10-10 15:41:34,213 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-10-10 15:41:35,025 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2018-10-10 15:41:35,376 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-10-10 15:41:35,728 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-10 15:41:36,094 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2018-10-10 15:41:36,606 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2018-10-10 15:41:37,027 WARN L178 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2018-10-10 15:41:37,349 WARN L178 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2018-10-10 15:41:37,646 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2018-10-10 15:41:37,988 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2018-10-10 15:41:38,435 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2018-10-10 15:41:38,839 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-10-10 15:41:39,160 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2018-10-10 15:41:39,508 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-10-10 15:41:39,736 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-10-10 15:41:39,992 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2018-10-10 15:41:40,270 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2018-10-10 15:41:40,533 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2018-10-10 15:41:40,988 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 92 [2018-10-10 15:41:41,406 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 90 [2018-10-10 15:41:42,250 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-10-10 15:41:42,864 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-10-10 15:41:43,187 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2018-10-10 15:41:43,479 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-10-10 15:41:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:44,732 INFO L93 Difference]: Finished difference Result 214 states and 214 transitions. [2018-10-10 15:41:44,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-10-10 15:41:44,733 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 159 [2018-10-10 15:41:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:44,735 INFO L225 Difference]: With dead ends: 214 [2018-10-10 15:41:44,736 INFO L226 Difference]: Without dead ends: 214 [2018-10-10 15:41:44,740 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1716 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=899, Invalid=8803, Unknown=0, NotChecked=0, Total=9702 [2018-10-10 15:41:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-10-10 15:41:44,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 188. [2018-10-10 15:41:44,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-10-10 15:41:44,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 188 transitions. [2018-10-10 15:41:44,757 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 188 transitions. Word has length 159 [2018-10-10 15:41:44,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:44,758 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 188 transitions. [2018-10-10 15:41:44,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-10-10 15:41:44,758 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 188 transitions. [2018-10-10 15:41:44,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-10-10 15:41:44,761 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:44,762 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:44,762 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:44,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:44,762 INFO L82 PathProgramCache]: Analyzing trace with hash -720134860, now seen corresponding path program 3 times [2018-10-10 15:41:44,763 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 15:41:47,603 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:47,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-10-10 15:41:47,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-10-10 15:41:47,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-10-10 15:41:47,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2219, Unknown=0, NotChecked=0, Total=2352 [2018-10-10 15:41:47,605 INFO L87 Difference]: Start difference. First operand 188 states and 188 transitions. Second operand 49 states. [2018-10-10 15:41:48,895 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2018-10-10 15:41:49,247 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-10-10 15:41:49,485 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-10-10 15:41:49,767 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2018-10-10 15:41:49,981 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-10 15:41:50,147 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-10-10 15:41:53,080 WARN L178 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-10 15:41:53,346 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2018-10-10 15:41:53,603 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2018-10-10 15:41:53,924 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2018-10-10 15:41:54,192 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2018-10-10 15:41:54,481 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2018-10-10 15:41:54,770 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2018-10-10 15:41:56,019 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2018-10-10 15:41:56,335 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2018-10-10 15:41:56,585 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2018-10-10 15:41:57,270 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-10-10 15:41:58,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:58,037 INFO L93 Difference]: Finished difference Result 186 states and 186 transitions. [2018-10-10 15:41:58,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-10-10 15:41:58,045 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 187 [2018-10-10 15:41:58,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:58,046 INFO L225 Difference]: With dead ends: 186 [2018-10-10 15:41:58,046 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:41:58,050 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2158 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1287, Invalid=10269, Unknown=0, NotChecked=0, Total=11556 [2018-10-10 15:41:58,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:41:58,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:41:58,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:41:58,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:41:58,051 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 187 [2018-10-10 15:41:58,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:58,051 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:41:58,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-10-10 15:41:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:41:58,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:41:58,056 INFO L202 PluginConnector]: Adding new model openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:41:58 BoogieIcfgContainer [2018-10-10 15:41:58,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:41:58,057 INFO L168 Benchmark]: Toolchain (without parser) took 42225.45 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 491.8 MB). Free memory was 1.4 GB in the beginning and 933.0 MB in the end (delta: 475.5 MB). Peak memory consumption was 967.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:41:58,059 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:41:58,059 INFO L168 Benchmark]: Boogie Preprocessor took 69.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:41:58,060 INFO L168 Benchmark]: RCFGBuilder took 987.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 15:41:58,061 INFO L168 Benchmark]: TraceAbstraction took 41164.83 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 491.8 MB). Free memory was 1.4 GB in the beginning and 933.0 MB in the end (delta: 433.2 MB). Peak memory consumption was 925.0 MB. Max. memory is 7.1 GB. [2018-10-10 15:41:58,064 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 987.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 41164.83 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 491.8 MB). Free memory was 1.4 GB in the beginning and 933.0 MB in the end (delta: 433.2 MB). Peak memory consumption was 925.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 230]: 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, 127 locations, 1 error locations. SAFE Result, 41.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 32.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 328 SDtfs, 3784 SDslu, 5664 SDs, 0 SdLazy, 8549 SolverSat, 215 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4347 ImplicationChecksByTransitivity, 27.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred 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, 78 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 576 ConstructedInterpolants, 0 QuantifiedInterpolants, 1469910 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 2/154 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_12.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-41-58-076.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-41-58-076.csv Received shutdown request...