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/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:18:32,279 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:18:32,281 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:18:32,296 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:18:32,297 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:18:32,298 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:18:32,299 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:18:32,301 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:18:32,302 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:18:32,303 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:18:32,309 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:18:32,309 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:18:32,310 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:18:32,311 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:18:32,312 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:18:32,313 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:18:32,315 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:18:32,316 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:18:32,320 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:18:32,323 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:18:32,324 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:18:32,325 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:18:32,329 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:18:32,342 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 15:18:32,362 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:18:32,362 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:18:32,363 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:18:32,363 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:18:32,364 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:18:32,364 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:18:32,364 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:18:32,365 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:18:32,365 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:18:32,365 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:18:32,365 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:18:32,365 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:18:32,366 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:18:32,366 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:18:32,367 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:18:32,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:18:32,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:18:32,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:18:32,467 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:18:32,467 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:18:32,468 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl [2018-10-10 15:18:32,468 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl' [2018-10-10 15:18:32,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:18:32,530 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:18:32,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:18:32,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:18:32,531 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:18:32,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:32" (1/1) ... [2018-10-10 15:18:32,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:32" (1/1) ... [2018-10-10 15:18:32,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:32" (1/1) ... [2018-10-10 15:18:32,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:32" (1/1) ... [2018-10-10 15:18:32,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:32" (1/1) ... [2018-10-10 15:18:32,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:32" (1/1) ... [2018-10-10 15:18:32,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:32" (1/1) ... [2018-10-10 15:18:32,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:18:32,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:18:32,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:18:32,587 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:18:32,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:32" (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 15:18:32,655 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:18:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:18:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:18:33,229 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:18:33,230 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:18:33 BoogieIcfgContainer [2018-10-10 15:18:33,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:18:33,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:18:33,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:18:33,235 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:18:33,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:18:32" (1/2) ... [2018-10-10 15:18:33,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1159fff4 and model type ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:18:33, skipping insertion in model container [2018-10-10 15:18:33,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:18:33" (2/2) ... [2018-10-10 15:18:33,239 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl [2018-10-10 15:18:33,250 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:18:33,259 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:18:33,276 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:18:33,305 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:18:33,306 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:18:33,306 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:18:33,306 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:18:33,306 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:18:33,307 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:18:33,307 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:18:33,307 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:18:33,307 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:18:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-10-10 15:18:33,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-10 15:18:33,335 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:18:33,336 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] [2018-10-10 15:18:33,337 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:18:33,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:18:33,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1936898855, now seen corresponding path program 1 times [2018-10-10 15:18:33,406 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:18:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:18:33,539 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 15:18:33,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:18:33,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 15:18:33,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 15:18:33,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 15:18:33,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 15:18:33,566 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 3 states. [2018-10-10 15:18:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:18:33,683 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2018-10-10 15:18:33,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 15:18:33,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-10-10 15:18:33,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:18:33,698 INFO L225 Difference]: With dead ends: 70 [2018-10-10 15:18:33,698 INFO L226 Difference]: Without dead ends: 70 [2018-10-10 15:18:33,701 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 15:18:33,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-10-10 15:18:33,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 58. [2018-10-10 15:18:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-10 15:18:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-10-10 15:18:33,742 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 42 [2018-10-10 15:18:33,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:18:33,743 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-10-10 15:18:33,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 15:18:33,743 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-10-10 15:18:33,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-10 15:18:33,745 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:18:33,745 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:18:33,746 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:18:33,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:18:33,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1024736836, now seen corresponding path program 1 times [2018-10-10 15:18:33,748 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:18:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:18:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:18:33,937 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:18:33,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-10 15:18:33,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 15:18:33,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 15:18:33,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 15:18:33,940 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 5 states. [2018-10-10 15:18:34,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:18:34,319 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-10-10 15:18:34,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 15:18:34,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-10-10 15:18:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:18:34,322 INFO L225 Difference]: With dead ends: 85 [2018-10-10 15:18:34,323 INFO L226 Difference]: Without dead ends: 85 [2018-10-10 15:18:34,324 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:18:34,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-10-10 15:18:34,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 73. [2018-10-10 15:18:34,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-10 15:18:34,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-10-10 15:18:34,333 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 57 [2018-10-10 15:18:34,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:18:34,334 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-10-10 15:18:34,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 15:18:34,334 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-10-10 15:18:34,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-10 15:18:34,337 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:18:34,337 INFO L375 BasicCegarLoop]: trace histogram [3, 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] [2018-10-10 15:18:34,340 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:18:34,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:18:34,343 INFO L82 PathProgramCache]: Analyzing trace with hash 661397127, now seen corresponding path program 2 times [2018-10-10 15:18:34,344 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:18:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:18:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:18:34,749 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:18:34,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-10 15:18:34,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 15:18:34,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 15:18:34,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:18:34,751 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 10 states. [2018-10-10 15:18:35,301 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 15:18:35,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:18:35,508 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-10-10 15:18:35,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-10 15:18:35,510 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2018-10-10 15:18:35,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:18:35,511 INFO L225 Difference]: With dead ends: 83 [2018-10-10 15:18:35,512 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:18:35,514 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2018-10-10 15:18:35,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:18:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:18:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:18:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:18:35,517 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2018-10-10 15:18:35,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:18:35,517 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:18:35,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 15:18:35,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:18:35,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:18:35,524 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:18:35 BoogieIcfgContainer [2018-10-10 15:18:35,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:18:35,525 INFO L168 Benchmark]: Toolchain (without parser) took 2996.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-10-10 15:18:35,527 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 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. [2018-10-10 15:18:35,529 INFO L168 Benchmark]: Boogie Preprocessor took 52.15 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. [2018-10-10 15:18:35,530 INFO L168 Benchmark]: RCFGBuilder took 644.08 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-10 15:18:35,532 INFO L168 Benchmark]: TraceAbstraction took 2292.77 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:18:35,537 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 0.15 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 52.15 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 644.08 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2292.77 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: 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, 58 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 SDtfs, 114 SDslu, 406 SDs, 0 SdLazy, 159 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 27224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/21 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/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-18-35-553.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c_7.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-18-35-553.csv Received shutdown request...