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/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:50:44,590 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:50:44,592 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:50:44,607 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:50:44,607 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:50:44,608 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:50:44,609 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:50:44,611 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:50:44,613 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:50:44,614 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:50:44,615 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-12 20:50:44,645 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 20:50:44,661 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:50:44,662 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:50:44,663 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:50:44,663 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:50:44,663 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:50:44,663 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:50:44,664 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:50:44,664 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:50:44,664 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:50:44,664 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:50:44,665 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:50:44,665 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:50:44,665 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:50:44,666 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:50:44,666 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:50:44,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:50:44,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:50:44,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:50:44,744 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:50:44,744 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:50:44,745 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl [2018-10-12 20:50:44,746 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl' [2018-10-12 20:50:44,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:50:44,833 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:50:44,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:50:44,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:50:44,834 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:50:44,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:44" (1/1) ... [2018-10-12 20:50:44,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:44" (1/1) ... [2018-10-12 20:50:44,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:44" (1/1) ... [2018-10-12 20:50:44,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:44" (1/1) ... [2018-10-12 20:50:44,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:44" (1/1) ... [2018-10-12 20:50:44,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:44" (1/1) ... [2018-10-12 20:50:44,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:44" (1/1) ... [2018-10-12 20:50:44,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:50:44,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:50:44,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:50:44,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:50:44,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:44" (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 20:50:44,997 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:50:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:50:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:50:45,538 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:50:45,539 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:50:45 BoogieIcfgContainer [2018-10-12 20:50:45,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:50:45,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:50:45,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:50:45,544 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:50:45,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:50:44" (1/2) ... [2018-10-12 20:50:45,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5f77c2 and model type ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:50:45, skipping insertion in model container [2018-10-12 20:50:45,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:50:45" (2/2) ... [2018-10-12 20:50:45,548 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl [2018-10-12 20:50:45,558 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:50:45,567 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:50:45,584 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:50:45,614 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:50:45,615 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:50:45,615 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:50:45,615 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:50:45,615 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:50:45,615 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:50:45,616 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:50:45,616 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:50:45,616 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:50:45,635 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-10-12 20:50:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-12 20:50:45,646 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:50:45,647 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] [2018-10-12 20:50:45,648 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:50:45,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:50:45,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1649905014, now seen corresponding path program 1 times [2018-10-12 20:50:45,718 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:50:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:50:46,016 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 20:50:46,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:50:46,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-12 20:50:46,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-12 20:50:46,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-12 20:50:46,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-12 20:50:46,041 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 6 states. [2018-10-12 20:50:46,349 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-12 20:50:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:50:46,452 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-10-12 20:50:46,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-12 20:50:46,454 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-10-12 20:50:46,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:50:46,467 INFO L225 Difference]: With dead ends: 74 [2018-10-12 20:50:46,467 INFO L226 Difference]: Without dead ends: 74 [2018-10-12 20:50:46,470 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-12 20:50:46,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-10-12 20:50:46,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 61. [2018-10-12 20:50:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-10-12 20:50:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2018-10-12 20:50:46,512 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 45 [2018-10-12 20:50:46,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:50:46,513 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2018-10-12 20:50:46,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-12 20:50:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-10-12 20:50:46,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-12 20:50:46,515 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:50:46,515 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] [2018-10-12 20:50:46,515 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:50:46,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:50:46,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1147356136, now seen corresponding path program 1 times [2018-10-12 20:50:46,517 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:50:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:50:46,871 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 20:50:46,872 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:50:46,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-12 20:50:46,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-12 20:50:46,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-12 20:50:46,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-12 20:50:46,878 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 8 states. [2018-10-12 20:50:47,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:50:47,268 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-10-12 20:50:47,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-12 20:50:47,269 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2018-10-12 20:50:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:50:47,270 INFO L225 Difference]: With dead ends: 76 [2018-10-12 20:50:47,271 INFO L226 Difference]: Without dead ends: 76 [2018-10-12 20:50:47,272 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-10-12 20:50:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-10-12 20:50:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-10-12 20:50:47,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-10-12 20:50:47,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-10-12 20:50:47,282 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 60 [2018-10-12 20:50:47,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:50:47,283 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-10-12 20:50:47,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-12 20:50:47,284 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-10-12 20:50:47,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-12 20:50:47,286 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:50:47,286 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:50:47,287 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:50:47,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:50:47,287 INFO L82 PathProgramCache]: Analyzing trace with hash 777413834, now seen corresponding path program 2 times [2018-10-12 20:50:47,288 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:50:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:50:48,488 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2018-10-12 20:50:48,903 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2018-10-12 20:50:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:50:49,175 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:50:49,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-10-12 20:50:49,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-12 20:50:49,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-12 20:50:49,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-10-12 20:50:49,178 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 19 states. [2018-10-12 20:50:49,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:50:49,672 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-10-12 20:50:49,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-12 20:50:49,673 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 75 [2018-10-12 20:50:49,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:50:49,674 INFO L225 Difference]: With dead ends: 74 [2018-10-12 20:50:49,675 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 20:50:49,676 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2018-10-12 20:50:49,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 20:50:49,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 20:50:49,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 20:50:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 20:50:49,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2018-10-12 20:50:49,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:50:49,677 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 20:50:49,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-12 20:50:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 20:50:49,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 20:50:49,682 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:50:49 BoogieIcfgContainer [2018-10-12 20:50:49,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 20:50:49,683 INFO L168 Benchmark]: Toolchain (without parser) took 4851.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 264.4 MB). Peak memory consumption was 264.4 MB. Max. memory is 7.1 GB. [2018-10-12 20:50:49,684 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. [2018-10-12 20:50:49,685 INFO L168 Benchmark]: Boogie Preprocessor took 74.92 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 20:50:49,686 INFO L168 Benchmark]: RCFGBuilder took 629.96 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. [2018-10-12 20:50:49,687 INFO L168 Benchmark]: TraceAbstraction took 4142.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.2 MB). Peak memory consumption was 243.2 MB. Max. memory is 7.1 GB. [2018-10-12 20:50:49,690 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 74.92 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 629.96 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 4142.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.2 MB). Peak memory consumption was 243.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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, 62 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 142 SDtfs, 588 SDslu, 319 SDs, 0 SdLazy, 238 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 177 ConstructedInterpolants, 0 QuantifiedInterpolants, 148799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 16/18 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/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_20-50-49-702.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_20-50-49-702.csv Received shutdown request...