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_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:43:54,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:43:54,338 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:43:54,356 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:43:54,356 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:43:54,357 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:43:54,358 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:43:54,361 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:43:54,363 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:43:54,364 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:43:54,365 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:43:54,366 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:43:54,367 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:43:54,368 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:43:54,369 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:43:54,370 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:43:54,370 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:43:54,372 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:43:54,374 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:43:54,376 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:43:54,377 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:43:54,378 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:43:54,381 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:43:54,381 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:43:54,381 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:43:54,382 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:43:54,383 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:43:54,384 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:43:54,385 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:43:54,386 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:43:54,386 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:43:54,387 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 16:43:54,390 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:43:54,399 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:43:54,400 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:43:54,401 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:43:54,401 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:43:54,401 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:43:54,401 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:43:54,402 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:43:54,402 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:43:54,402 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:43:54,403 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:43:54,403 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:43:54,403 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:43:54,403 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:43:54,404 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:43:54,404 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:43:54,454 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:43:54,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:43:54,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:43:54,476 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:43:54,476 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:43:54,477 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-14 16:43:54,478 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-14 16:43:54,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:43:54,570 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:43:54,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:43:54,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:43:54,572 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:43:54,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:43:54" (1/1) ... [2018-10-14 16:43:54,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:43:54" (1/1) ... [2018-10-14 16:43:54,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:43:54" (1/1) ... [2018-10-14 16:43:54,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:43:54" (1/1) ... [2018-10-14 16:43:54,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:43:54" (1/1) ... [2018-10-14 16:43:54,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:43:54" (1/1) ... [2018-10-14 16:43:54,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:43:54" (1/1) ... [2018-10-14 16:43:54,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:43:54,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:43:54,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:43:54,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:43:54,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:43:54" (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 [2018-10-14 16:43:54,732 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:43:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:43:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:43:55,353 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:43:55,354 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:43:55 BoogieIcfgContainer [2018-10-14 16:43:55,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:43:55,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:43:55,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:43:55,364 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:43:55,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:43:54" (1/2) ... [2018-10-14 16:43:55,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aab90f0 and model type lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:43:55, skipping insertion in model container [2018-10-14 16:43:55,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:43:55" (2/2) ... [2018-10-14 16:43:55,368 INFO L112 eAbstractionObserver]: Analyzing ICFG lis-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-14 16:43:55,379 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:43:55,388 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:43:55,407 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:43:55,441 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:43:55,442 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:43:55,442 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:43:55,442 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:43:55,442 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:43:55,442 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:43:55,442 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:43:55,443 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:43:55,444 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:43:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2018-10-14 16:43:55,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-14 16:43:55,479 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:43:55,480 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] [2018-10-14 16:43:55,481 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:43:55,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:43:55,490 INFO L82 PathProgramCache]: Analyzing trace with hash 162865511, now seen corresponding path program 1 times [2018-10-14 16:43:55,541 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:43:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:43:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:43:55,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:43:55,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-14 16:43:55,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-14 16:43:55,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-14 16:43:55,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-14 16:43:55,857 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 6 states. [2018-10-14 16:43:56,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:43:56,184 INFO L93 Difference]: Finished difference Result 126 states and 127 transitions. [2018-10-14 16:43:56,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-14 16:43:56,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2018-10-14 16:43:56,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:43:56,200 INFO L225 Difference]: With dead ends: 126 [2018-10-14 16:43:56,200 INFO L226 Difference]: Without dead ends: 126 [2018-10-14 16:43:56,202 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 [2018-10-14 16:43:56,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-10-14 16:43:56,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 93. [2018-10-14 16:43:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-10-14 16:43:56,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2018-10-14 16:43:56,249 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 62 [2018-10-14 16:43:56,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:43:56,250 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2018-10-14 16:43:56,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-14 16:43:56,251 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2018-10-14 16:43:56,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-14 16:43:56,256 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:43:56,256 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, 1] [2018-10-14 16:43:56,257 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:43:56,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:43:56,257 INFO L82 PathProgramCache]: Analyzing trace with hash 739168669, now seen corresponding path program 1 times [2018-10-14 16:43:56,258 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:43:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:43:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:43:56,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:43:56,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-14 16:43:56,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-14 16:43:56,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-14 16:43:56,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-14 16:43:56,674 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 10 states. [2018-10-14 16:43:57,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:43:57,950 INFO L93 Difference]: Finished difference Result 110 states and 111 transitions. [2018-10-14 16:43:57,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-14 16:43:57,951 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2018-10-14 16:43:57,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:43:57,954 INFO L225 Difference]: With dead ends: 110 [2018-10-14 16:43:57,955 INFO L226 Difference]: Without dead ends: 110 [2018-10-14 16:43:57,956 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2018-10-14 16:43:57,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-10-14 16:43:57,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2018-10-14 16:43:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-10-14 16:43:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2018-10-14 16:43:57,966 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 82 [2018-10-14 16:43:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:43:57,967 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 98 transitions. [2018-10-14 16:43:57,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-14 16:43:57,967 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2018-10-14 16:43:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-14 16:43:57,971 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:43:57,971 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:43:57,971 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:43:57,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:43:57,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1259198545, now seen corresponding path program 1 times [2018-10-14 16:43:57,973 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:43:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:43:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:43:58,163 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:43:58,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-10-14 16:43:58,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 16:43:58,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 16:43:58,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-10-14 16:43:58,165 INFO L87 Difference]: Start difference. First operand 97 states and 98 transitions. Second operand 9 states. [2018-10-14 16:43:58,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:43:58,671 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2018-10-14 16:43:58,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-14 16:43:58,672 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2018-10-14 16:43:58,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:43:58,672 INFO L225 Difference]: With dead ends: 132 [2018-10-14 16:43:58,673 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:43:58,673 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-14 16:43:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:43:58,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:43:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:43:58,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:43:58,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2018-10-14 16:43:58,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:43:58,676 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:43:58,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 16:43:58,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:43:58,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:43:58,682 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:43:58 BoogieIcfgContainer [2018-10-14 16:43:58,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:43:58,683 INFO L168 Benchmark]: Toolchain (without parser) took 4114.42 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: 200.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 7.1 GB. [2018-10-14 16:43:58,686 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-10-14 16:43:58,686 INFO L168 Benchmark]: Boogie Preprocessor took 79.62 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. [2018-10-14 16:43:58,687 INFO L168 Benchmark]: RCFGBuilder took 704.08 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:43:58,688 INFO L168 Benchmark]: TraceAbstraction took 3326.18 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: 169.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. [2018-10-14 16:43:58,692 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 0.21 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 79.62 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 704.08 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3326.18 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: 169.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 179]: 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, 94 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 234 SDtfs, 630 SDslu, 726 SDs, 0 SdLazy, 265 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred 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, 46 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 237 ConstructedInterpolants, 0 QuantifiedInterpolants, 58613 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 4/6 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_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-43-58-703.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lis-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-43-58-703.csv Received shutdown request...