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/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:32:30,703 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:32:30,705 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:32:30,719 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:32:30,719 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:32:30,721 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:32:30,722 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:32:30,724 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:32:30,727 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:32:30,728 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:32:30,731 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:32:30,731 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:32:30,732 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:32:30,733 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:32:30,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:32:30,737 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:32:30,738 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:32:30,740 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:32:30,749 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:32:30,751 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:32:30,755 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:32:30,756 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:32:30,759 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:32:30,777 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 15:32:30,795 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:32:30,795 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:32:30,796 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:32:30,796 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:32:30,797 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:32:30,797 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:32:30,797 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:32:30,798 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:32:30,798 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:32:30,798 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:32:30,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:32:30,798 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:32:30,799 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:32:30,800 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:32:30,800 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:32:30,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:32:30,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:32:30,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:32:30,875 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:32:30,876 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:32:30,877 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-10 15:32:30,877 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl' [2018-10-10 15:32:30,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:32:30,957 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:32:30,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:32:30,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:32:30,958 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:32:30,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:30" (1/1) ... [2018-10-10 15:32:30,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:30" (1/1) ... [2018-10-10 15:32:31,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:30" (1/1) ... [2018-10-10 15:32:31,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:30" (1/1) ... [2018-10-10 15:32:31,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:30" (1/1) ... [2018-10-10 15:32:31,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:30" (1/1) ... [2018-10-10 15:32:31,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:30" (1/1) ... [2018-10-10 15:32:31,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:32:31,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:32:31,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:32:31,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:32:31,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:30" (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 15:32:31,095 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:32:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:32:31,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:32:31,680 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:32:31,681 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:32:31 BoogieIcfgContainer [2018-10-10 15:32:31,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:32:31,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:32:31,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:32:31,685 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:32:31,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:32:30" (1/2) ... [2018-10-10 15:32:31,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdc9300 and model type cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:32:31, skipping insertion in model container [2018-10-10 15:32:31,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:32:31" (2/2) ... [2018-10-10 15:32:31,689 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-10 15:32:31,699 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:32:31,707 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:32:31,725 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:32:31,754 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:32:31,755 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:32:31,755 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:32:31,756 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:32:31,756 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:32:31,756 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:32:31,756 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:32:31,756 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:32:31,757 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:32:31,777 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-10-10 15:32:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-10 15:32:31,788 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:32:31,789 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:32:31,793 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:32:31,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:32:31,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1037118093, now seen corresponding path program 1 times [2018-10-10 15:32:31,868 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:32:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:32:32,788 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 15:32:32,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:32:32,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 15:32:32,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 15:32:32,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 15:32:32,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-10-10 15:32:32,818 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 13 states. [2018-10-10 15:32:33,330 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-10 15:32:34,310 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-10-10 15:32:34,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:32:34,394 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2018-10-10 15:32:34,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 15:32:34,397 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2018-10-10 15:32:34,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:32:34,413 INFO L225 Difference]: With dead ends: 120 [2018-10-10 15:32:34,413 INFO L226 Difference]: Without dead ends: 120 [2018-10-10 15:32:34,416 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-10 15:32:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-10-10 15:32:34,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 94. [2018-10-10 15:32:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-10-10 15:32:34,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-10-10 15:32:34,472 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 65 [2018-10-10 15:32:34,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:32:34,473 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-10-10 15:32:34,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 15:32:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-10-10 15:32:34,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-10 15:32:34,480 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:32:34,481 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:32:34,484 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:32:34,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:32:34,485 INFO L82 PathProgramCache]: Analyzing trace with hash 2049876257, now seen corresponding path program 1 times [2018-10-10 15:32:34,486 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:32:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:32:35,260 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-10-10 15:32:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:32:35,855 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:32:35,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-10 15:32:35,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-10 15:32:35,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-10 15:32:35,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2018-10-10 15:32:35,858 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 21 states. [2018-10-10 15:32:36,497 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-10-10 15:32:37,106 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-10 15:32:37,406 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-10 15:32:37,746 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2018-10-10 15:32:38,059 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-10-10 15:32:38,512 WARN L178 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-10-10 15:32:38,823 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2018-10-10 15:32:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:32:39,868 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-10-10 15:32:39,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-10 15:32:39,868 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 93 [2018-10-10 15:32:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:32:39,871 INFO L225 Difference]: With dead ends: 148 [2018-10-10 15:32:39,871 INFO L226 Difference]: Without dead ends: 148 [2018-10-10 15:32:39,873 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2018-10-10 15:32:39,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-10-10 15:32:39,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 122. [2018-10-10 15:32:39,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-10-10 15:32:39,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2018-10-10 15:32:39,886 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 93 [2018-10-10 15:32:39,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:32:39,886 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2018-10-10 15:32:39,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-10 15:32:39,887 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2018-10-10 15:32:39,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-10 15:32:39,889 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:32:39,889 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:39,890 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:32:39,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:32:39,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1137886257, now seen corresponding path program 2 times [2018-10-10 15:32:39,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:32:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:32:41,715 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:32:41,716 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:32:41,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-10 15:32:41,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-10 15:32:41,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-10 15:32:41,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1181, Unknown=0, NotChecked=0, Total=1260 [2018-10-10 15:32:41,718 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand 36 states. [2018-10-10 15:32:43,210 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-10-10 15:32:43,626 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-10 15:32:43,912 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2018-10-10 15:32:44,281 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2018-10-10 15:32:44,735 WARN L178 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2018-10-10 15:32:45,134 WARN L178 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2018-10-10 15:32:45,673 WARN L178 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2018-10-10 15:32:46,266 WARN L178 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2018-10-10 15:32:46,726 WARN L178 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2018-10-10 15:32:47,437 WARN L178 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 131 [2018-10-10 15:32:47,998 WARN L178 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 134 [2018-10-10 15:32:48,766 WARN L178 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 141 [2018-10-10 15:32:49,520 WARN L178 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 127 [2018-10-10 15:32:50,009 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-10 15:32:50,265 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2018-10-10 15:32:50,486 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-10 15:32:50,822 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2018-10-10 15:32:51,069 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2018-10-10 15:32:51,366 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2018-10-10 15:32:51,694 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2018-10-10 15:32:52,095 WARN L178 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2018-10-10 15:32:52,460 WARN L178 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2018-10-10 15:32:52,755 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-10-10 15:32:53,135 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2018-10-10 15:32:53,476 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-10-10 15:32:54,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:32:54,101 INFO L93 Difference]: Finished difference Result 176 states and 176 transitions. [2018-10-10 15:32:54,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-10-10 15:32:54,101 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 121 [2018-10-10 15:32:54,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:32:54,104 INFO L225 Difference]: With dead ends: 176 [2018-10-10 15:32:54,104 INFO L226 Difference]: Without dead ends: 176 [2018-10-10 15:32:54,106 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=891, Invalid=4659, Unknown=0, NotChecked=0, Total=5550 [2018-10-10 15:32:54,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-10-10 15:32:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 150. [2018-10-10 15:32:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-10-10 15:32:54,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2018-10-10 15:32:54,119 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 121 [2018-10-10 15:32:54,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:32:54,119 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2018-10-10 15:32:54,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-10 15:32:54,120 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2018-10-10 15:32:54,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-10 15:32:54,122 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:32:54,122 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:54,123 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:32:54,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:32:54,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1492002173, now seen corresponding path program 3 times [2018-10-10 15:32:54,124 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:32:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:32:56,726 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-10 15:32:56,726 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:32:56,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-10-10 15:32:56,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-10-10 15:32:56,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-10-10 15:32:56,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1461, Unknown=0, NotChecked=0, Total=1560 [2018-10-10 15:32:56,728 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand 40 states. [2018-10-10 15:32:57,815 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-10 15:32:58,110 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-10 15:32:58,442 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2018-10-10 15:32:58,695 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-10-10 15:32:58,927 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-10 15:32:59,341 WARN L178 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-10-10 15:32:59,617 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2018-10-10 15:33:00,094 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-10-10 15:33:00,407 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2018-10-10 15:33:00,757 WARN L178 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 103 [2018-10-10 15:33:01,157 WARN L178 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 120 [2018-10-10 15:33:01,599 WARN L178 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 122 [2018-10-10 15:33:02,130 WARN L178 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 125 [2018-10-10 15:33:02,645 WARN L178 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 128 [2018-10-10 15:33:03,194 WARN L178 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 133 [2018-10-10 15:33:03,651 WARN L178 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 127 [2018-10-10 15:33:03,918 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2018-10-10 15:33:04,151 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-10 15:33:04,348 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-10-10 15:33:04,525 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2018-10-10 15:33:04,831 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2018-10-10 15:33:05,131 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2018-10-10 15:33:05,479 WARN L178 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 94 [2018-10-10 15:33:05,935 WARN L178 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 99 [2018-10-10 15:33:06,580 WARN L178 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2018-10-10 15:33:06,949 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-10-10 15:33:07,221 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-10-10 15:33:07,473 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2018-10-10 15:33:07,702 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-10 15:33:07,911 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2018-10-10 15:33:08,219 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-10-10 15:33:08,513 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2018-10-10 15:33:08,813 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2018-10-10 15:33:08,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:33:08,827 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-10-10 15:33:08,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-10-10 15:33:08,829 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 149 [2018-10-10 15:33:08,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:33:08,829 INFO L225 Difference]: With dead ends: 148 [2018-10-10 15:33:08,830 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:33:08,832 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=1370, Invalid=5602, Unknown=0, NotChecked=0, Total=6972 [2018-10-10 15:33:08,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:33:08,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:33:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:33:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:33:08,833 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2018-10-10 15:33:08,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:33:08,833 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:33:08,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-10-10 15:33:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:33:08,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:33:08,838 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:33:08 BoogieIcfgContainer [2018-10-10 15:33:08,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:33:08,839 INFO L168 Benchmark]: Toolchain (without parser) took 37883.56 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 364.4 MB). Free memory was 1.5 GB in the beginning and 907.9 MB in the end (delta: 563.5 MB). Peak memory consumption was 927.9 MB. Max. memory is 7.1 GB. [2018-10-10 15:33:08,840 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 15:33:08,841 INFO L168 Benchmark]: Boogie Preprocessor took 66.80 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 15:33:08,842 INFO L168 Benchmark]: RCFGBuilder took 656.32 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 15:33:08,842 INFO L168 Benchmark]: TraceAbstraction took 37156.55 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 364.4 MB). Free memory was 1.4 GB in the beginning and 907.9 MB in the end (delta: 531.8 MB). Peak memory consumption was 896.2 MB. Max. memory is 7.1 GB. [2018-10-10 15:33:08,846 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 66.80 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 656.32 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 37156.55 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 364.4 MB). Free memory was 1.4 GB in the beginning and 907.9 MB in the end (delta: 531.8 MB). Peak memory consumption was 896.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 166]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. SAFE Result, 37.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 30.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 287 SDtfs, 4199 SDslu, 3542 SDs, 0 SdLazy, 3819 SolverSat, 256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1720 ImplicationChecksByTransitivity, 29.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred 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, 0.1s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 428 NumberOfCodeBlocks, 428 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 424 ConstructedInterpolants, 0 QuantifiedInterpolants, 729204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/178 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/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-33-08-857.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrncpy-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-33-08-857.csv Received shutdown request...