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-b8f97f7-m [2018-10-10 15:27:38,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:27:38,504 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:27:38,522 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:27:38,523 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:27:38,524 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:27:38,526 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:27:38,528 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:27:38,530 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:27:38,532 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:27:38,533 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:27:38,533 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:27:38,535 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:27:38,536 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:27:38,540 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:27:38,547 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:27:38,548 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:27:38,552 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:27:38,555 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:27:38,557 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:27:38,559 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:27:38,560 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:27:38,565 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:27:38,565 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:27:38,565 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:27:38,566 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:27:38,568 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:27:38,568 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:27:38,569 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:27:38,572 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:27:38,572 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:27:38,573 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 15:27:38,577 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 15:27:38,591 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:27:38,592 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:27:38,593 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:27:38,594 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:27:38,594 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:27:38,594 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:27:38,596 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:27:38,596 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:27:38,596 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:27:38,596 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:27:38,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:27:38,597 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:27:38,597 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:27:38,598 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:27:38,598 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:27:38,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:27:38,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:27:38,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:27:38,687 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:27:38,688 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:27:38,689 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-10 15:27:38,689 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array01-alloca_true-valid-memsafety_true-termination.i_8.bpl' [2018-10-10 15:27:38,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:27:38,749 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:27:38,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:27:38,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:27:38,750 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:27:38,776 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 10.10 03:27:38" (1/1) ... [2018-10-10 15:27:38,778 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 10.10 03:27:38" (1/1) ... [2018-10-10 15:27:38,796 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 10.10 03:27:38" (1/1) ... [2018-10-10 15:27:38,797 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 10.10 03:27:38" (1/1) ... [2018-10-10 15:27:38,805 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 10.10 03:27:38" (1/1) ... [2018-10-10 15:27:38,807 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 10.10 03:27:38" (1/1) ... [2018-10-10 15:27:38,809 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 10.10 03:27:38" (1/1) ... [2018-10-10 15:27:38,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:27:38,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:27:38,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:27:38,814 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:27:38,816 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 10.10 03:27:38" (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 15:27:38,878 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:27:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:27:38,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:27:39,408 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:27:39,409 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 10.10 03:27:39 BoogieIcfgContainer [2018-10-10 15:27:39,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:27:39,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:27:39,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:27:39,415 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:27:39,416 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 10.10 03:27:38" (1/2) ... [2018-10-10 15:27:39,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e93fdc3 and model type array01-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:27:39, skipping insertion in model container [2018-10-10 15:27:39,417 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 10.10 03:27:39" (2/2) ... [2018-10-10 15:27:39,419 INFO L112 eAbstractionObserver]: Analyzing ICFG array01-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-10 15:27:39,430 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:27:39,439 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:27:39,456 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:27:39,486 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:27:39,487 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:27:39,487 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:27:39,487 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:27:39,488 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:27:39,488 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:27:39,488 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:27:39,488 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:27:39,488 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:27:39,507 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-10-10 15:27:39,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-10 15:27:39,518 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:27:39,519 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] [2018-10-10 15:27:39,520 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:27:39,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:27:39,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1456362875, now seen corresponding path program 1 times [2018-10-10 15:27:39,592 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:27:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:27:40,510 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 15:27:40,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:27:40,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 15:27:40,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:27:40,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:27:40,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:27:40,539 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 12 states. [2018-10-10 15:27:41,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:27:41,479 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-10-10 15:27:41,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 15:27:41,481 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2018-10-10 15:27:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:27:41,495 INFO L225 Difference]: With dead ends: 85 [2018-10-10 15:27:41,496 INFO L226 Difference]: Without dead ends: 71 [2018-10-10 15:27:41,498 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 [2018-10-10 15:27:41,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-10 15:27:41,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2018-10-10 15:27:41,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-10-10 15:27:41,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-10-10 15:27:41,540 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 53 [2018-10-10 15:27:41,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:27:41,541 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-10-10 15:27:41,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:27:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-10-10 15:27:41,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-10 15:27:41,544 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:27:41,544 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] [2018-10-10 15:27:41,545 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:27:41,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:27:41,545 INFO L82 PathProgramCache]: Analyzing trace with hash -532049327, now seen corresponding path program 1 times [2018-10-10 15:27:41,546 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:27:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:27:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:27:41,982 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:27:41,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-10 15:27:41,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 15:27:41,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 15:27:41,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-10-10 15:27:41,986 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 14 states. [2018-10-10 15:27:42,560 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-10 15:27:43,006 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-10-10 15:27:43,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:27:43,031 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-10-10 15:27:43,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 15:27:43,032 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2018-10-10 15:27:43,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:27:43,035 INFO L225 Difference]: With dead ends: 99 [2018-10-10 15:27:43,036 INFO L226 Difference]: Without dead ends: 85 [2018-10-10 15:27:43,037 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2018-10-10 15:27:43,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-10-10 15:27:43,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2018-10-10 15:27:43,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-10 15:27:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-10-10 15:27:43,047 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 67 [2018-10-10 15:27:43,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:27:43,048 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-10-10 15:27:43,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 15:27:43,048 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-10-10 15:27:43,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-10 15:27:43,050 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:27:43,051 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] [2018-10-10 15:27:43,051 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:27:43,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:27:43,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1087807655, now seen corresponding path program 2 times [2018-10-10 15:27:43,053 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:27:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:27:43,553 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:27:43,554 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:27:43,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-10 15:27:43,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-10 15:27:43,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-10 15:27:43,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-10-10 15:27:43,556 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 16 states. [2018-10-10 15:27:44,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:27:44,506 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-10-10 15:27:44,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 15:27:44,507 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 81 [2018-10-10 15:27:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:27:44,508 INFO L225 Difference]: With dead ends: 83 [2018-10-10 15:27:44,509 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:27:44,510 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 [2018-10-10 15:27:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:27:44,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:27:44,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:27:44,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:27:44,511 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2018-10-10 15:27:44,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:27:44,512 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:27:44,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-10 15:27:44,512 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:27:44,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:27:44,517 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 10.10 03:27:44 BoogieIcfgContainer [2018-10-10 15:27:44,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:27:44,518 INFO L168 Benchmark]: Toolchain (without parser) took 5770.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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. [2018-10-10 15:27:44,519 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:27:44,520 INFO L168 Benchmark]: Boogie Preprocessor took 63.95 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 15:27:44,521 INFO L168 Benchmark]: RCFGBuilder took 596.08 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 15:27:44,522 INFO L168 Benchmark]: TraceAbstraction took 5105.62 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: 319.8 MB). Peak memory consumption was 319.8 MB. Max. memory is 7.1 GB. [2018-10-10 15:27:44,526 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.95 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 596.08 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 5105.62 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: 319.8 MB). Peak memory consumption was 319.8 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, 5.0s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 134 SDtfs, 1122 SDslu, 595 SDs, 0 SdLazy, 408 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.0s 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, 0.0s SatisfiabilityAnalysisTime, 1.6s 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-0-2018-10-10_15-27-44-538.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-0-2018-10-10_15-27-44-538.csv Received shutdown request...