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/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:58:18,710 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:58:18,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:58:18,723 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:58:18,724 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:58:18,725 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:58:18,726 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:58:18,728 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:58:18,729 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:58:18,730 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:58:18,731 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 20:58:18,731 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 20:58:18,732 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 20:58:18,733 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 20:58:18,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 20:58:18,735 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 20:58:18,736 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 20:58:18,738 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 20:58:18,743 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 20:58:18,744 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 20:58:18,747 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 20:58:18,749 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 20:58:18,754 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 20:58:18,754 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 20:58:18,755 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 20:58:18,759 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 20:58:18,759 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 20:58:18,762 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 20:58:18,763 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 20:58:18,764 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 20:58:18,764 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 20:58:18,765 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-12 20:58:18,765 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-12 20:58:18,765 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-12 20:58:18,767 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-12 20:58:18,768 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-12 20:58:18,768 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 20:58:18,783 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:58:18,783 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:58:18,787 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:58:18,787 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:58:18,787 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:58:18,787 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:58:18,788 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:58:18,788 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:58:18,789 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:58:18,789 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:58:18,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:58:18,789 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:58:18,789 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:58:18,790 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:58:18,790 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:58:18,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:58:18,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:58:18,872 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:58:18,873 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:58:18,874 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:58:18,875 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-12 20:58:18,875 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-12 20:58:18,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:58:18,971 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:58:18,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:58:18,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:58:18,972 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:58:19,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:58:18" (1/1) ... [2018-10-12 20:58:19,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:58:18" (1/1) ... [2018-10-12 20:58:19,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:58:18" (1/1) ... [2018-10-12 20:58:19,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:58:18" (1/1) ... [2018-10-12 20:58:19,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:58:18" (1/1) ... [2018-10-12 20:58:19,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:58:18" (1/1) ... [2018-10-12 20:58:19,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:58:18" (1/1) ... [2018-10-12 20:58:19,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:58:19,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:58:19,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:58:19,054 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:58:19,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:58:18" (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 [2018-10-12 20:58:19,135 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:58:19,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:58:19,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:58:19,798 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:58:19,798 INFO L202 PluginConnector]: Adding new model cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:58:19 BoogieIcfgContainer [2018-10-12 20:58:19,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:58:19,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:58:19,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:58:19,803 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:58:19,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:58:18" (1/2) ... [2018-10-12 20:58:19,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b97ceae and model type cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:58:19, skipping insertion in model container [2018-10-12 20:58:19,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:58:19" (2/2) ... [2018-10-12 20:58:19,807 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-12 20:58:19,817 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:58:19,826 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:58:19,843 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:58:19,872 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:58:19,873 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:58:19,873 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:58:19,873 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:58:19,873 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:58:19,873 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:58:19,874 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:58:19,874 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:58:19,874 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:58:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-10-12 20:58:19,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-12 20:58:19,904 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:58:19,905 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] [2018-10-12 20:58:19,906 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:58:19,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:58:19,912 INFO L82 PathProgramCache]: Analyzing trace with hash 2049004303, now seen corresponding path program 1 times [2018-10-12 20:58:19,964 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:58:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:58:21,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:58:21,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:58:21,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-10-12 20:58:21,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-12 20:58:21,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-12 20:58:21,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-10-12 20:58:21,185 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 17 states. [2018-10-12 20:58:23,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:58:23,316 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-10-12 20:58:23,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-12 20:58:23,320 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2018-10-12 20:58:23,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:58:23,333 INFO L225 Difference]: With dead ends: 115 [2018-10-12 20:58:23,334 INFO L226 Difference]: Without dead ends: 115 [2018-10-12 20:58:23,336 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=244, Invalid=1016, Unknown=0, NotChecked=0, Total=1260 [2018-10-12 20:58:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-10-12 20:58:23,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 93. [2018-10-12 20:58:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-10-12 20:58:23,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2018-10-12 20:58:23,383 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 68 [2018-10-12 20:58:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:58:23,385 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2018-10-12 20:58:23,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-12 20:58:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-10-12 20:58:23,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-10-12 20:58:23,388 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:58:23,389 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:58:23,389 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:58:23,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:58:23,390 INFO L82 PathProgramCache]: Analyzing trace with hash 810072990, now seen corresponding path program 1 times [2018-10-12 20:58:23,391 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:58:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:58:24,905 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:58:24,906 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:58:24,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-10-12 20:58:24,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-10-12 20:58:24,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-10-12 20:58:24,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1046, Unknown=0, NotChecked=0, Total=1122 [2018-10-12 20:58:24,909 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 34 states. [2018-10-12 20:58:25,685 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2018-10-12 20:58:26,724 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2018-10-12 20:58:27,684 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 20:58:27,936 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-10-12 20:58:28,143 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-12 20:58:28,362 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-10-12 20:58:28,649 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-10-12 20:58:29,085 WARN L178 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-10-12 20:58:29,373 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-10-12 20:58:29,791 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-10-12 20:58:30,124 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2018-10-12 20:58:30,411 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2018-10-12 20:58:30,623 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-10-12 20:58:30,923 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-12 20:58:31,216 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-12 20:58:31,448 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-10-12 20:58:31,728 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2018-10-12 20:58:32,099 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-10-12 20:58:32,404 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-10-12 20:58:32,727 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2018-10-12 20:58:32,920 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-10-12 20:58:33,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:58:33,405 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2018-10-12 20:58:33,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-10-12 20:58:33,406 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 92 [2018-10-12 20:58:33,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:58:33,413 INFO L225 Difference]: With dead ends: 139 [2018-10-12 20:58:33,413 INFO L226 Difference]: Without dead ends: 139 [2018-10-12 20:58:33,418 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1009, Invalid=3961, Unknown=0, NotChecked=0, Total=4970 [2018-10-12 20:58:33,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-10-12 20:58:33,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 117. [2018-10-12 20:58:33,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-10-12 20:58:33,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2018-10-12 20:58:33,441 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 92 [2018-10-12 20:58:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:58:33,445 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2018-10-12 20:58:33,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-10-12 20:58:33,445 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2018-10-12 20:58:33,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-12 20:58:33,453 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:58:33,453 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-12 20:58:33,453 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:58:33,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:58:33,456 INFO L82 PathProgramCache]: Analyzing trace with hash 397616941, now seen corresponding path program 2 times [2018-10-12 20:58:33,457 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:58:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:58:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 12 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:58:34,953 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:58:34,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-10-12 20:58:34,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-10-12 20:58:34,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-10-12 20:58:34,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2018-10-12 20:58:34,955 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand 40 states. [2018-10-12 20:58:37,284 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 20:58:37,516 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-10-12 20:58:37,746 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-12 20:58:37,990 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-10-12 20:58:38,421 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-10-12 20:58:38,657 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-10-12 20:58:38,901 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-10-12 20:58:39,167 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-10-12 20:58:39,557 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2018-10-12 20:58:39,881 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2018-10-12 20:58:40,085 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-10-12 20:58:40,313 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-12 20:58:40,550 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-10-12 20:58:40,809 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2018-10-12 20:58:41,041 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-12 20:58:41,441 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2018-10-12 20:58:41,731 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-10-12 20:58:41,930 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2018-10-12 20:58:42,185 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-12 20:58:42,451 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-10-12 20:58:42,723 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2018-10-12 20:58:42,993 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-10-12 20:58:43,264 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-10-12 20:58:43,568 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2018-10-12 20:58:43,944 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2018-10-12 20:58:44,326 WARN L178 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-10-12 20:58:44,555 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-12 20:58:44,920 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2018-10-12 20:58:45,186 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-10-12 20:58:45,468 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2018-10-12 20:58:45,757 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-10-12 20:58:46,068 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2018-10-12 20:58:46,476 WARN L178 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2018-10-12 20:58:46,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:58:46,549 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-10-12 20:58:46,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-10-12 20:58:46,554 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 116 [2018-10-12 20:58:46,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:58:46,555 INFO L225 Difference]: With dead ends: 137 [2018-10-12 20:58:46,555 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 20:58:46,559 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=1692, Invalid=6498, Unknown=0, NotChecked=0, Total=8190 [2018-10-12 20:58:46,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 20:58:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 20:58:46,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 20:58:46,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 20:58:46,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 116 [2018-10-12 20:58:46,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:58:46,560 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 20:58:46,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-10-12 20:58:46,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 20:58:46,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 20:58:46,566 INFO L202 PluginConnector]: Adding new model cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:58:46 BoogieIcfgContainer [2018-10-12 20:58:46,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 20:58:46,567 INFO L168 Benchmark]: Toolchain (without parser) took 27597.38 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 357.6 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 174.6 MB). Peak memory consumption was 532.2 MB. Max. memory is 7.1 GB. [2018-10-12 20:58:46,569 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. [2018-10-12 20:58:46,569 INFO L168 Benchmark]: Boogie Preprocessor took 79.89 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. [2018-10-12 20:58:46,570 INFO L168 Benchmark]: RCFGBuilder took 746.44 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. [2018-10-12 20:58:46,570 INFO L168 Benchmark]: TraceAbstraction took 26766.48 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 357.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 142.9 MB). Peak memory consumption was 500.5 MB. Max. memory is 7.1 GB. [2018-10-12 20:58:46,574 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 79.89 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 746.44 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 26766.48 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 357.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 142.9 MB). Peak memory consumption was 500.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: 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, 79 locations, 1 error locations. SAFE Result, 26.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 22.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 172 SDtfs, 3392 SDslu, 2203 SDs, 0 SdLazy, 3157 SolverSat, 168 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 19.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=2, 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, 3 MinimizatonAttempts, 44 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 326574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 12/72 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/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_20-58-46-584.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_20-58-46-584.csv Received shutdown request...