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/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:36:43,930 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:36:43,935 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:36:43,949 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:36:43,949 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:36:43,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:36:43,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:36:43,953 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:36:43,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:36:43,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:36:43,959 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:36:44,005 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 15:36:44,022 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:36:44,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:36:44,023 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:36:44,023 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:36:44,023 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:36:44,025 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:36:44,025 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:36:44,026 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:36:44,026 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:36:44,026 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:36:44,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:36:44,026 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:36:44,027 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:36:44,028 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:36:44,028 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:36:44,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:36:44,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:36:44,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:36:44,104 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:36:44,104 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:36:44,105 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl [2018-10-10 15:36:44,105 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl' [2018-10-10 15:36:44,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:36:44,182 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:36:44,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:36:44,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:36:44,183 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:36:44,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:44" (1/1) ... [2018-10-10 15:36:44,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:44" (1/1) ... [2018-10-10 15:36:44,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:44" (1/1) ... [2018-10-10 15:36:44,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:44" (1/1) ... [2018-10-10 15:36:44,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:44" (1/1) ... [2018-10-10 15:36:44,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:44" (1/1) ... [2018-10-10 15:36:44,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:44" (1/1) ... [2018-10-10 15:36:44,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:36:44,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:36:44,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:36:44,255 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:36:44,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:44" (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 [2018-10-10 15:36:44,341 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:36:44,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:36:44,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:36:44,964 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:36:44,965 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:44 BoogieIcfgContainer [2018-10-10 15:36:44,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:36:44,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:36:44,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:36:44,969 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:36:44,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:44" (1/2) ... [2018-10-10 15:36:44,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee8d919 and model type lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:36:44, skipping insertion in model container [2018-10-10 15:36:44,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:44" (2/2) ... [2018-10-10 15:36:44,973 INFO L112 eAbstractionObserver]: Analyzing ICFG lis-alloca_true-valid-memsafety_true-termination.i_7.bpl [2018-10-10 15:36:44,983 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:36:44,994 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:36:45,012 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:36:45,048 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:36:45,049 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:36:45,049 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:36:45,049 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:36:45,050 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:36:45,050 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:36:45,050 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:36:45,050 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:36:45,050 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:36:45,074 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-10-10 15:36:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-10 15:36:45,085 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:45,086 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:36:45,087 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:45,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:45,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1251502483, now seen corresponding path program 1 times [2018-10-10 15:36:45,145 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:45,499 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 15:36:45,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:36:45,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 15:36:45,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:36:45,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:36:45,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:36:45,528 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 6 states. [2018-10-10 15:36:45,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:45,799 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-10-10 15:36:45,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 15:36:45,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-10-10 15:36:45,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:45,816 INFO L225 Difference]: With dead ends: 100 [2018-10-10 15:36:45,816 INFO L226 Difference]: Without dead ends: 100 [2018-10-10 15:36:45,819 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-10 15:36:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-10-10 15:36:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 82. [2018-10-10 15:36:45,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-10 15:36:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-10-10 15:36:45,872 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 61 [2018-10-10 15:36:45,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:45,874 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-10-10 15:36:45,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:36:45,875 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-10-10 15:36:45,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-10 15:36:45,878 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:45,880 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, 1, 1, 1, 1] [2018-10-10 15:36:45,880 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:45,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:45,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1035232861, now seen corresponding path program 1 times [2018-10-10 15:36:45,883 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:46,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:46,136 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:46,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-10 15:36:46,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 15:36:46,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 15:36:46,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:36:46,140 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 7 states. [2018-10-10 15:36:46,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:46,573 INFO L93 Difference]: Finished difference Result 122 states and 122 transitions. [2018-10-10 15:36:46,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 15:36:46,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2018-10-10 15:36:46,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:46,579 INFO L225 Difference]: With dead ends: 122 [2018-10-10 15:36:46,579 INFO L226 Difference]: Without dead ends: 120 [2018-10-10 15:36:46,581 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:36:46,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-10-10 15:36:46,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2018-10-10 15:36:46,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-10-10 15:36:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-10-10 15:36:46,603 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 81 [2018-10-10 15:36:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:46,605 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-10-10 15:36:46,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 15:36:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-10-10 15:36:46,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-10 15:36:46,613 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:46,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:36:46,613 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:46,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:46,614 INFO L82 PathProgramCache]: Analyzing trace with hash 397154855, now seen corresponding path program 2 times [2018-10-10 15:36:46,615 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:47,461 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 8 [2018-10-10 15:36:47,511 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-10 15:36:47,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:36:47,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 15:36:47,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 15:36:47,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 15:36:47,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-10-10 15:36:47,514 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 11 states. [2018-10-10 15:36:48,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:48,364 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-10-10 15:36:48,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 15:36:48,365 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2018-10-10 15:36:48,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:48,366 INFO L225 Difference]: With dead ends: 100 [2018-10-10 15:36:48,366 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:36:48,367 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2018-10-10 15:36:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:36:48,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:36:48,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:36:48,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:36:48,368 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2018-10-10 15:36:48,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:48,370 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:36:48,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 15:36:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:36:48,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:36:48,375 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:36:48 BoogieIcfgContainer [2018-10-10 15:36:48,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:36:48,376 INFO L168 Benchmark]: Toolchain (without parser) took 4195.52 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:48,377 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:36:48,378 INFO L168 Benchmark]: Boogie Preprocessor took 71.73 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:36:48,379 INFO L168 Benchmark]: RCFGBuilder took 710.06 ms. Allocated memory is still 1.6 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. [2018-10-10 15:36:48,380 INFO L168 Benchmark]: TraceAbstraction took 3409.71 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.6 MB). Peak memory consumption was 158.6 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:48,383 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 0.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.73 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 710.06 ms. Allocated memory is still 1.6 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 3409.71 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.6 MB). Peak memory consumption was 158.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 158]: 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, 83 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 198 SDtfs, 445 SDslu, 585 SDs, 0 SdLazy, 268 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred 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, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 64540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 22/23 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/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-36-48-403.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-36-48-403.csv Received shutdown request...