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_12.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:39:46,201 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:39:46,204 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:39:46,220 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:39:46,222 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:39:46,223 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:39:46,229 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:39:46,232 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:39:46,234 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:39:46,240 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:39:46,241 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:39:46,241 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:39:46,242 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:39:46,243 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:39:46,245 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:39:46,245 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:39:46,246 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:39:46,248 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:39:46,250 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:39:46,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:39:46,255 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:39:46,256 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:39:46,258 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:39:46,258 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:39:46,259 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:39:46,259 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:39:46,260 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:39:46,261 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:39:46,262 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:39:46,263 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:39:46,263 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:39:46,264 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:39:46,264 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:39:46,264 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:39:46,265 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:39:46,266 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:39:46,266 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:39:46,275 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:39:46,275 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:39:46,276 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:39:46,276 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:39:46,277 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:39:46,277 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:39:46,278 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:39:46,278 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:39:46,278 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:39:46,278 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:39:46,278 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:39:46,279 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:39:46,279 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:39:46,279 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:39:46,280 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:39:46,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:39:46,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:39:46,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:39:46,351 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:39:46,351 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:39:46,352 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl [2018-10-14 16:39:46,353 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl' [2018-10-14 16:39:46,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:39:46,451 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:39:46,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:39:46,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:39:46,452 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:39:46,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:46" (1/1) ... [2018-10-14 16:39:46,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:46" (1/1) ... [2018-10-14 16:39:46,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:46" (1/1) ... [2018-10-14 16:39:46,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:46" (1/1) ... [2018-10-14 16:39:46,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:46" (1/1) ... [2018-10-14 16:39:46,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:46" (1/1) ... [2018-10-14 16:39:46,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:46" (1/1) ... [2018-10-14 16:39:46,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:39:46,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:39:46,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:39:46,526 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:39:46,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:46" (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 [2018-10-14 16:39:46,601 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:39:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:39:46,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:39:47,240 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:39:47,241 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:39:47 BoogieIcfgContainer [2018-10-14 16:39:47,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:39:47,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:39:47,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:39:47,245 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:39:47,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:46" (1/2) ... [2018-10-14 16:39:47,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb6c768 and model type cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:39:47, skipping insertion in model container [2018-10-14 16:39:47,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:39:47" (2/2) ... [2018-10-14 16:39:47,249 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl [2018-10-14 16:39:47,259 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:39:47,267 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:39:47,284 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:39:47,311 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:39:47,312 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:39:47,312 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:39:47,312 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:39:47,312 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:39:47,312 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:39:47,313 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:39:47,313 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:39:47,313 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:39:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-10-14 16:39:47,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-14 16:39:47,342 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:39:47,344 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] [2018-10-14 16:39:47,345 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:39:47,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:39:47,351 INFO L82 PathProgramCache]: Analyzing trace with hash -388193774, now seen corresponding path program 1 times [2018-10-14 16:39:47,400 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:39:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:39:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:39:48,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:39:48,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-10-14 16:39:48,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-14 16:39:48,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-14 16:39:48,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-10-14 16:39:48,572 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 17 states. [2018-10-14 16:39:50,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:39:50,641 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-10-14 16:39:50,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-14 16:39:50,646 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 74 [2018-10-14 16:39:50,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:39:50,668 INFO L225 Difference]: With dead ends: 129 [2018-10-14 16:39:50,668 INFO L226 Difference]: Without dead ends: 129 [2018-10-14 16:39:50,671 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 [2018-10-14 16:39:50,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-10-14 16:39:50,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 103. [2018-10-14 16:39:50,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-10-14 16:39:50,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2018-10-14 16:39:50,736 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 74 [2018-10-14 16:39:50,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:39:50,738 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2018-10-14 16:39:50,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-14 16:39:50,738 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2018-10-14 16:39:50,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-14 16:39:50,744 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:39:50,744 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:39:50,745 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:39:50,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:39:50,748 INFO L82 PathProgramCache]: Analyzing trace with hash -794258593, now seen corresponding path program 1 times [2018-10-14 16:39:50,749 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:39:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:39:51,522 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:39:51,523 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:39:51,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-14 16:39:51,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-14 16:39:51,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-14 16:39:51,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=499, Unknown=0, NotChecked=0, Total=552 [2018-10-14 16:39:51,527 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand 24 states. [2018-10-14 16:39:53,263 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2018-10-14 16:39:53,691 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-10-14 16:39:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:39:54,064 INFO L93 Difference]: Finished difference Result 157 states and 157 transitions. [2018-10-14 16:39:54,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-10-14 16:39:54,072 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 102 [2018-10-14 16:39:54,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:39:54,078 INFO L225 Difference]: With dead ends: 157 [2018-10-14 16:39:54,078 INFO L226 Difference]: Without dead ends: 157 [2018-10-14 16:39:54,083 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=346, Invalid=2006, Unknown=0, NotChecked=0, Total=2352 [2018-10-14 16:39:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-10-14 16:39:54,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 131. [2018-10-14 16:39:54,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-10-14 16:39:54,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-10-14 16:39:54,102 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 102 [2018-10-14 16:39:54,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:39:54,103 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-10-14 16:39:54,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-14 16:39:54,103 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-10-14 16:39:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-14 16:39:54,111 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:39:54,111 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1] [2018-10-14 16:39:54,112 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:39:54,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:39:54,112 INFO L82 PathProgramCache]: Analyzing trace with hash 219725612, now seen corresponding path program 2 times [2018-10-14 16:39:54,114 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:39:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:39:55,037 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:39:55,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:39:55,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-10-14 16:39:55,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-10-14 16:39:55,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-10-14 16:39:55,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=798, Unknown=0, NotChecked=0, Total=870 [2018-10-14 16:39:55,039 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 30 states. [2018-10-14 16:39:57,829 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-10-14 16:39:59,167 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2018-10-14 16:39:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:39:59,223 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2018-10-14 16:39:59,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-10-14 16:39:59,230 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 130 [2018-10-14 16:39:59,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:39:59,231 INFO L225 Difference]: With dead ends: 155 [2018-10-14 16:39:59,231 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:39:59,233 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=717, Invalid=3975, Unknown=0, NotChecked=0, Total=4692 [2018-10-14 16:39:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:39:59,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:39:59,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:39:59,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:39:59,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2018-10-14 16:39:59,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:39:59,235 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:39:59,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-10-14 16:39:59,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:39:59,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:39:59,244 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:39:59 BoogieIcfgContainer [2018-10-14 16:39:59,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:39:59,245 INFO L168 Benchmark]: Toolchain (without parser) took 12795.20 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 108.0 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 13.7 MB). Peak memory consumption was 121.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:39:59,247 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. [2018-10-14 16:39:59,248 INFO L168 Benchmark]: Boogie Preprocessor took 73.25 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. [2018-10-14 16:39:59,248 INFO L168 Benchmark]: RCFGBuilder took 715.41 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. [2018-10-14 16:39:59,251 INFO L168 Benchmark]: TraceAbstraction took 12002.10 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 108.0 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -18.0 MB). Peak memory consumption was 90.0 MB. Max. memory is 7.1 GB. [2018-10-14 16:39:59,257 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 73.25 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 715.41 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 12002.10 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 108.0 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -18.0 MB). Peak memory consumption was 90.0 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, 11.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 8.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 249 SDtfs, 1856 SDslu, 2715 SDs, 0 SdLazy, 2224 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred 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, 52 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 303 ConstructedInterpolants, 0 QuantifiedInterpolants, 330757 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 11/88 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_12.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-39-59-273.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrncpy-alloca_true-valid-memsafety_true-termination.i_12.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-39-59-273.csv Received shutdown request...