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/ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:44:39,251 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:44:39,254 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:44:39,270 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:44:39,271 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:44:39,272 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:44:39,273 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:44:39,275 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:44:39,277 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:44:39,277 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:44:39,278 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 20:44:39,279 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 20:44:39,280 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 20:44:39,281 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 20:44:39,282 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 20:44:39,283 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 20:44:39,283 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 20:44:39,285 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 20:44:39,287 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 20:44:39,289 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 20:44:39,290 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 20:44:39,291 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 20:44:39,294 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 20:44:39,294 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 20:44:39,294 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 20:44:39,295 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 20:44:39,296 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 20:44:39,297 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 20:44:39,298 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 20:44:39,299 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 20:44:39,299 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 20:44:39,300 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 20:44:39,302 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 20:44:39,314 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:44:39,315 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:44:39,315 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:44:39,316 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:44:39,316 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:44:39,316 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:44:39,317 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:44:39,317 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:44:39,317 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:44:39,317 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:44:39,318 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:44:39,318 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:44:39,318 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:44:39,322 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:44:39,322 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:44:39,369 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:44:39,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:44:39,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:44:39,391 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:44:39,392 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:44:39,393 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl [2018-10-12 20:44:39,394 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl' [2018-10-12 20:44:39,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:44:39,491 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:44:39,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:44:39,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:44:39,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:44:39,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:44:39" (1/1) ... [2018-10-12 20:44:39,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:44:39" (1/1) ... [2018-10-12 20:44:39,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:44:39" (1/1) ... [2018-10-12 20:44:39,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:44:39" (1/1) ... [2018-10-12 20:44:39,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:44:39" (1/1) ... [2018-10-12 20:44:39,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:44:39" (1/1) ... [2018-10-12 20:44:39,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:44:39" (1/1) ... [2018-10-12 20:44:39,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:44:39,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:44:39,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:44:39,565 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:44:39,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:44:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-12 20:44:39,644 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:44:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:44:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:44:40,162 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:44:40,163 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:44:40 BoogieIcfgContainer [2018-10-12 20:44:40,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:44:40,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:44:40,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:44:40,168 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:44:40,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:44:39" (1/2) ... [2018-10-12 20:44:40,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2372d43f and model type ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:44:40, skipping insertion in model container [2018-10-12 20:44:40,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:44:40" (2/2) ... [2018-10-12 20:44:40,171 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl [2018-10-12 20:44:40,181 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:44:40,189 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:44:40,207 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:44:40,236 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:44:40,237 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:44:40,237 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:44:40,238 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:44:40,238 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:44:40,238 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:44:40,238 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:44:40,238 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:44:40,238 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:44:40,258 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-10-12 20:44:40,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-12 20:44:40,268 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:44:40,269 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] [2018-10-12 20:44:40,270 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:44:40,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:44:40,277 INFO L82 PathProgramCache]: Analyzing trace with hash -597764606, now seen corresponding path program 1 times [2018-10-12 20:44:40,332 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:44:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:44:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:44:40,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:44:40,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-12 20:44:40,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-12 20:44:40,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-12 20:44:40,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-12 20:44:40,463 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 3 states. [2018-10-12 20:44:40,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:44:40,588 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2018-10-12 20:44:40,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-12 20:44:40,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-10-12 20:44:40,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:44:40,603 INFO L225 Difference]: With dead ends: 130 [2018-10-12 20:44:40,603 INFO L226 Difference]: Without dead ends: 130 [2018-10-12 20:44:40,606 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 [2018-10-12 20:44:40,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-10-12 20:44:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 78. [2018-10-12 20:44:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-10-12 20:44:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-10-12 20:44:40,653 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 23 [2018-10-12 20:44:40,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:44:40,654 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-10-12 20:44:40,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-12 20:44:40,654 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-10-12 20:44:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-12 20:44:40,657 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:44:40,657 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, 1, 1, 1] [2018-10-12 20:44:40,658 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:44:40,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:44:40,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1004234307, now seen corresponding path program 1 times [2018-10-12 20:44:40,659 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:44:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:44:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:44:40,993 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:44:40,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-12 20:44:40,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-12 20:44:40,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-12 20:44:40,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-12 20:44:40,997 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 5 states. [2018-10-12 20:44:41,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:44:41,230 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2018-10-12 20:44:41,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-12 20:44:41,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2018-10-12 20:44:41,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:44:41,234 INFO L225 Difference]: With dead ends: 184 [2018-10-12 20:44:41,234 INFO L226 Difference]: Without dead ends: 184 [2018-10-12 20:44:41,235 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-12 20:44:41,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-10-12 20:44:41,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 132. [2018-10-12 20:44:41,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-10-12 20:44:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-10-12 20:44:41,251 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 77 [2018-10-12 20:44:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:44:41,251 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-10-12 20:44:41,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-12 20:44:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-10-12 20:44:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-12 20:44:41,257 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:44:41,257 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, 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, 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] [2018-10-12 20:44:41,258 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:44:41,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:44:41,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1941201720, now seen corresponding path program 2 times [2018-10-12 20:44:41,259 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:44:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:44:41,488 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-10-12 20:44:41,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:44:41,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-12 20:44:41,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-12 20:44:41,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-12 20:44:41,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-12 20:44:41,491 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 6 states. [2018-10-12 20:44:41,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:44:41,753 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2018-10-12 20:44:41,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-12 20:44:41,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-10-12 20:44:41,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:44:41,756 INFO L225 Difference]: With dead ends: 130 [2018-10-12 20:44:41,756 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 20:44:41,757 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-12 20:44:41,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 20:44:41,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 20:44:41,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 20:44:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 20:44:41,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2018-10-12 20:44:41,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:44:41,762 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 20:44:41,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-12 20:44:41,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 20:44:41,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 20:44:41,771 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:44:41 BoogieIcfgContainer [2018-10-12 20:44:41,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 20:44:41,772 INFO L168 Benchmark]: Toolchain (without parser) took 2283.03 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: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2018-10-12 20:44:41,778 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:44:41,779 INFO L168 Benchmark]: Boogie Preprocessor took 68.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:44:41,779 INFO L168 Benchmark]: RCFGBuilder took 598.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-12 20:44:41,782 INFO L168 Benchmark]: TraceAbstraction took 1607.30 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-12 20:44:41,786 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 0.23 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 68.19 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 598.55 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 1607.30 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 152]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 79 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 251 SDtfs, 244 SDslu, 510 SDs, 0 SdLazy, 110 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred 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, 104 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 41704 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 56/57 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/ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_20-44-41-806.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_true-valid-memsafety.c_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_20-44-41-806.csv Received shutdown request...