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/ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:18:15,820 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:18:15,823 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:18:15,834 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:18:15,835 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:18:15,836 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:18:15,837 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:18:15,839 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:18:15,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:18:15,841 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:18:15,842 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:18:15,843 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:18:15,843 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:18:15,844 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:18:15,846 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:18:15,846 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:18:15,847 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:18:15,849 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:18:15,851 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:18:15,854 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:18:15,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:18:15,858 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:18:15,862 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:18:15,877 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:18:15,891 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:18:15,892 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:18:15,893 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:18:15,893 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:18:15,893 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:18:15,893 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:18:15,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:18:15,894 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:18:15,894 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:18:15,895 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:18:15,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:18:15,895 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:18:15,895 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:18:15,896 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:18:15,896 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:18:15,940 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:18:15,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:18:15,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:18:15,958 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:18:15,958 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:18:15,959 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl [2018-10-10 15:18:15,959 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl' [2018-10-10 15:18:16,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:18:16,027 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:18:16,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:18:16,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:18:16,028 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:18:16,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:16" (1/1) ... [2018-10-10 15:18:16,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:16" (1/1) ... [2018-10-10 15:18:16,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:16" (1/1) ... [2018-10-10 15:18:16,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:16" (1/1) ... [2018-10-10 15:18:16,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:16" (1/1) ... [2018-10-10 15:18:16,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:16" (1/1) ... [2018-10-10 15:18:16,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:16" (1/1) ... [2018-10-10 15:18:16,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:18:16,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:18:16,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:18:16,077 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:18:16,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 15:18:16,155 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:18:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:18:16,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:18:16,743 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:18:16,744 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:18:16 BoogieIcfgContainer [2018-10-10 15:18:16,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:18:16,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:18:16,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:18:16,750 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:18:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:16" (1/2) ... [2018-10-10 15:18:16,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae3c278 and model type ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:18:16, skipping insertion in model container [2018-10-10 15:18:16,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:18:16" (2/2) ... [2018-10-10 15:18:16,754 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl [2018-10-10 15:18:16,764 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:18:16,773 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:18:16,792 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:18:16,821 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:18:16,822 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:18:16,822 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:18:16,822 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:18:16,822 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:18:16,822 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:18:16,823 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:18:16,823 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:18:16,823 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:18:16,841 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2018-10-10 15:18:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-10 15:18:16,851 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:18:16,852 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] [2018-10-10 15:18:16,853 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:18:16,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:18:16,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2075573292, now seen corresponding path program 1 times [2018-10-10 15:18:16,924 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:18:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:18:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:18:17,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:18:17,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 15:18:17,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 15:18:17,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 15:18:17,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 15:18:17,119 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 3 states. [2018-10-10 15:18:17,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:18:17,274 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-10-10 15:18:17,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 15:18:17,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-10-10 15:18:17,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:18:17,288 INFO L225 Difference]: With dead ends: 86 [2018-10-10 15:18:17,288 INFO L226 Difference]: Without dead ends: 86 [2018-10-10 15:18:17,290 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 15:18:17,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-10-10 15:18:17,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 62. [2018-10-10 15:18:17,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-10-10 15:18:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-10-10 15:18:17,334 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 35 [2018-10-10 15:18:17,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:18:17,335 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-10-10 15:18:17,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 15:18:17,335 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-10-10 15:18:17,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-10 15:18:17,337 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:18:17,338 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] [2018-10-10 15:18:17,338 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:18:17,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:18:17,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1041059943, now seen corresponding path program 1 times [2018-10-10 15:18:17,340 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:18:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:18:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:18:17,553 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:18:17,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-10 15:18:17,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 15:18:17,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 15:18:17,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-10 15:18:17,556 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 5 states. [2018-10-10 15:18:18,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:18:18,003 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-10-10 15:18:18,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 15:18:18,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2018-10-10 15:18:18,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:18:18,007 INFO L225 Difference]: With dead ends: 112 [2018-10-10 15:18:18,008 INFO L226 Difference]: Without dead ends: 112 [2018-10-10 15:18:18,009 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:18:18,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-10 15:18:18,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 88. [2018-10-10 15:18:18,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-10-10 15:18:18,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-10-10 15:18:18,020 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 61 [2018-10-10 15:18:18,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:18:18,021 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-10-10 15:18:18,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 15:18:18,021 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-10-10 15:18:18,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-10 15:18:18,026 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:18:18,027 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:18:18,027 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:18:18,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:18:18,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1093073722, now seen corresponding path program 2 times [2018-10-10 15:18:18,029 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:18:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:18:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-10 15:18:18,305 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:18:18,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-10 15:18:18,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:18:18,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:18:18,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:18:18,307 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 6 states. [2018-10-10 15:18:18,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:18:18,521 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-10-10 15:18:18,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 15:18:18,521 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2018-10-10 15:18:18,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:18:18,525 INFO L225 Difference]: With dead ends: 86 [2018-10-10 15:18:18,527 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:18:18,528 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:18:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:18:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:18:18,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:18:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:18:18,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2018-10-10 15:18:18,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:18:18,530 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:18:18,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:18:18,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:18:18,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:18:18,538 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:18:18 BoogieIcfgContainer [2018-10-10 15:18:18,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:18:18,539 INFO L168 Benchmark]: Toolchain (without parser) took 2513.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-10-10 15:18:18,544 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:18:18,544 INFO L168 Benchmark]: Boogie Preprocessor took 48.37 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:18:18,545 INFO L168 Benchmark]: RCFGBuilder took 668.42 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. [2018-10-10 15:18:18,546 INFO L168 Benchmark]: TraceAbstraction took 1792.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-10 15:18:18,552 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 0.18 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 48.37 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 668.42 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 1792.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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, 63 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 177 SDtfs, 133 SDslu, 329 SDs, 0 SdLazy, 83 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred 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, 48 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 31112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 22/29 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/ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-18-18-568.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-18-18-568.csv Received shutdown request...