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/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:35:00,041 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:35:00,043 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:35:00,055 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:35:00,055 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:35:00,056 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:35:00,058 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:35:00,059 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:35:00,061 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:35:00,062 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:35:00,063 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:35:00,063 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:35:00,064 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:35:00,065 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:35:00,066 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:35:00,067 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:35:00,068 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:35:00,070 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:35:00,072 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:35:00,073 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:35:00,074 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:35:00,076 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:35:00,078 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:35:00,078 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:35:00,078 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:35:00,079 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:35:00,080 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:35:00,081 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:35:00,082 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:35:00,083 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:35:00,083 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:35:00,084 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:35:00,084 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:35:00,084 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:35:00,085 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:35:00,086 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:35:00,086 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 16:35:00,095 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:35:00,096 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:35:00,096 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:35:00,097 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:35:00,097 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:35:00,097 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:35:00,098 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:35:00,098 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:35:00,098 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:35:00,098 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:35:00,099 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:35:00,099 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:35:00,099 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:35:00,100 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:35:00,100 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:35:00,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:35:00,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:35:00,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:35:00,176 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:35:00,176 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:35:00,177 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-14 16:35:00,177 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl' [2018-10-14 16:35:00,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:35:00,244 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:35:00,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:35:00,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:35:00,245 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:35:00,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:00" (1/1) ... [2018-10-14 16:35:00,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:00" (1/1) ... [2018-10-14 16:35:00,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:00" (1/1) ... [2018-10-14 16:35:00,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:00" (1/1) ... [2018-10-14 16:35:00,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:00" (1/1) ... [2018-10-14 16:35:00,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:00" (1/1) ... [2018-10-14 16:35:00,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:00" (1/1) ... [2018-10-14 16:35:00,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:35:00,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:35:00,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:35:00,300 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:35:00,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:00" (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 16:35:00,373 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:35:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:35:00,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:35:00,950 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:35:00,952 INFO L202 PluginConnector]: Adding new model array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:35:00 BoogieIcfgContainer [2018-10-14 16:35:00,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:35:00,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:35:00,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:35:00,959 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:35:00,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:35:00" (1/2) ... [2018-10-14 16:35:00,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4992a13a and model type array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:35:00, skipping insertion in model container [2018-10-14 16:35:00,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:35:00" (2/2) ... [2018-10-14 16:35:00,963 INFO L112 eAbstractionObserver]: Analyzing ICFG array01-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-14 16:35:00,975 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:35:00,986 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:35:01,006 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:35:01,041 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:35:01,042 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:35:01,042 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:35:01,042 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:35:01,042 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:35:01,043 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:35:01,043 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:35:01,043 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:35:01,043 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:35:01,065 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-10-14 16:35:01,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-14 16:35:01,084 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:35:01,086 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] [2018-10-14 16:35:01,088 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:35:01,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:35:01,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1456362875, now seen corresponding path program 1 times [2018-10-14 16:35:01,165 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:35:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:35:01,925 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 16:35:02,046 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 16:35:02,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:35:02,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 16:35:02,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:35:02,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:35:02,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:35:02,075 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 12 states. [2018-10-14 16:35:02,746 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-14 16:35:02,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:35:02,980 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-10-14 16:35:02,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-14 16:35:02,988 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2018-10-14 16:35:02,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:35:03,002 INFO L225 Difference]: With dead ends: 85 [2018-10-14 16:35:03,003 INFO L226 Difference]: Without dead ends: 71 [2018-10-14 16:35:03,006 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2018-10-14 16:35:03,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-14 16:35:03,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2018-10-14 16:35:03,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-10-14 16:35:03,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-10-14 16:35:03,044 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 53 [2018-10-14 16:35:03,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:35:03,045 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-10-14 16:35:03,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:35:03,045 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-10-14 16:35:03,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-14 16:35:03,047 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:35:03,048 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:35:03,048 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:35:03,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:35:03,049 INFO L82 PathProgramCache]: Analyzing trace with hash -532049327, now seen corresponding path program 1 times [2018-10-14 16:35:03,050 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:35:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:35:03,704 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:35:03,705 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:35:03,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-14 16:35:03,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-14 16:35:03,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-14 16:35:03,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-10-14 16:35:03,708 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 14 states. [2018-10-14 16:35:04,276 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-14 16:35:04,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:35:04,733 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-10-14 16:35:04,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-14 16:35:04,734 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2018-10-14 16:35:04,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:35:04,737 INFO L225 Difference]: With dead ends: 99 [2018-10-14 16:35:04,738 INFO L226 Difference]: Without dead ends: 85 [2018-10-14 16:35:04,739 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2018-10-14 16:35:04,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-10-14 16:35:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2018-10-14 16:35:04,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-14 16:35:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-10-14 16:35:04,750 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 67 [2018-10-14 16:35:04,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:35:04,750 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-10-14 16:35:04,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-14 16:35:04,751 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-10-14 16:35:04,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-14 16:35:04,753 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:35:04,754 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-14 16:35:04,754 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:35:04,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:35:04,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1087807655, now seen corresponding path program 2 times [2018-10-14 16:35:04,756 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:35:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:35:05,209 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:35:05,210 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:35:05,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-14 16:35:05,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-14 16:35:05,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-14 16:35:05,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-10-14 16:35:05,212 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 16 states. [2018-10-14 16:35:06,126 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2018-10-14 16:35:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:35:06,261 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-10-14 16:35:06,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-14 16:35:06,262 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 81 [2018-10-14 16:35:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:35:06,264 INFO L225 Difference]: With dead ends: 83 [2018-10-14 16:35:06,264 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:35:06,265 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-10-14 16:35:06,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:35:06,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:35:06,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:35:06,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:35:06,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2018-10-14 16:35:06,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:35:06,267 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:35:06,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-14 16:35:06,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:35:06,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:35:06,273 INFO L202 PluginConnector]: Adding new model array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:35:06 BoogieIcfgContainer [2018-10-14 16:35:06,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:35:06,274 INFO L168 Benchmark]: Toolchain (without parser) took 6030.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 341.0 MB). Peak memory consumption was 341.0 MB. Max. memory is 7.1 GB. [2018-10-14 16:35:06,275 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:35:06,276 INFO L168 Benchmark]: Boogie Preprocessor took 54.00 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:35:06,276 INFO L168 Benchmark]: RCFGBuilder took 652.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-14 16:35:06,277 INFO L168 Benchmark]: TraceAbstraction took 5319.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 319.9 MB). Peak memory consumption was 319.9 MB. Max. memory is 7.1 GB. [2018-10-14 16:35:06,281 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 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.00 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 652.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5319.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 319.9 MB). Peak memory consumption was 319.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 120]: 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, 60 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 134 SDtfs, 1122 SDslu, 595 SDs, 0 SdLazy, 408 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 103408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 5/44 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/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-35-06-292.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-35-06-292.csv Received shutdown request...