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/dll_extends_pointer_true-valid-memsafety.i_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:00:25,052 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:00:25,055 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:00:25,072 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:00:25,072 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:00:25,073 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:00:25,075 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:00:25,076 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:00:25,078 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:00:25,079 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:00:25,080 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 21:00:25,080 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 21:00:25,081 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 21:00:25,082 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 21:00:25,083 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 21:00:25,084 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 21:00:25,085 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 21:00:25,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 21:00:25,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 21:00:25,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 21:00:25,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 21:00:25,093 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 21:00:25,099 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-12 21:00:25,112 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 21:00:25,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:00:25,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:00:25,130 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:00:25,130 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:00:25,131 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:00:25,131 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:00:25,131 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:00:25,132 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:00:25,132 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:00:25,132 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:00:25,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:00:25,133 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:00:25,133 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:00:25,134 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:00:25,134 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:00:25,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:00:25,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:00:25,213 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:00:25,215 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:00:25,216 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:00:25,216 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_14.bpl [2018-10-12 21:00:25,217 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_14.bpl' [2018-10-12 21:00:25,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:00:25,316 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:00:25,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:00:25,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:00:25,317 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:00:25,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:25" (1/1) ... [2018-10-12 21:00:25,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:25" (1/1) ... [2018-10-12 21:00:25,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:25" (1/1) ... [2018-10-12 21:00:25,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:25" (1/1) ... [2018-10-12 21:00:25,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:25" (1/1) ... [2018-10-12 21:00:25,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:25" (1/1) ... [2018-10-12 21:00:25,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:25" (1/1) ... [2018-10-12 21:00:25,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:00:25,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:00:25,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:00:25,395 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:00:25,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:25" (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 21:00:25,471 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:00:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:00:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:00:26,169 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:00:26,170 INFO L202 PluginConnector]: Adding new model dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:00:26 BoogieIcfgContainer [2018-10-12 21:00:26,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:00:26,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:00:26,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:00:26,177 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:00:26,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:25" (1/2) ... [2018-10-12 21:00:26,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5509f2b7 and model type dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:00:26, skipping insertion in model container [2018-10-12 21:00:26,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:00:26" (2/2) ... [2018-10-12 21:00:26,182 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_extends_pointer_true-valid-memsafety.i_14.bpl [2018-10-12 21:00:26,193 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:00:26,203 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:00:26,221 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:00:26,254 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:00:26,255 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:00:26,255 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:00:26,256 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:00:26,256 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:00:26,256 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:00:26,256 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:00:26,256 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:00:26,256 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:00:26,282 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2018-10-12 21:00:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-12 21:00:26,303 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:00:26,304 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] [2018-10-12 21:00:26,306 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:00:26,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:00:26,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1261064456, now seen corresponding path program 1 times [2018-10-12 21:00:26,381 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:00:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:00:26,752 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 21:00:26,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:00:26,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-12 21:00:26,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-12 21:00:26,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-12 21:00:26,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-12 21:00:26,780 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 6 states. [2018-10-12 21:00:27,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:00:27,236 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-10-12 21:00:27,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-12 21:00:27,238 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-10-12 21:00:27,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:00:27,252 INFO L225 Difference]: With dead ends: 112 [2018-10-12 21:00:27,252 INFO L226 Difference]: Without dead ends: 112 [2018-10-12 21:00:27,254 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-12 21:00:27,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-12 21:00:27,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 79. [2018-10-12 21:00:27,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-10-12 21:00:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2018-10-12 21:00:27,300 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 50 [2018-10-12 21:00:27,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:00:27,301 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2018-10-12 21:00:27,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-12 21:00:27,301 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-10-12 21:00:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-10-12 21:00:27,304 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:00:27,304 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] [2018-10-12 21:00:27,305 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:00:27,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:00:27,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1579449990, now seen corresponding path program 1 times [2018-10-12 21:00:27,307 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:00:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:00:27,813 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 21:00:27,814 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:00:27,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-12 21:00:27,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-12 21:00:27,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-12 21:00:27,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-10-12 21:00:27,818 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand 11 states. [2018-10-12 21:00:28,232 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-10-12 21:00:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:00:29,270 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2018-10-12 21:00:29,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-12 21:00:29,270 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2018-10-12 21:00:29,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:00:29,274 INFO L225 Difference]: With dead ends: 135 [2018-10-12 21:00:29,275 INFO L226 Difference]: Without dead ends: 133 [2018-10-12 21:00:29,276 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2018-10-12 21:00:29,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-10-12 21:00:29,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 107. [2018-10-12 21:00:29,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-10-12 21:00:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2018-10-12 21:00:29,299 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 78 [2018-10-12 21:00:29,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:00:29,300 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2018-10-12 21:00:29,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-12 21:00:29,300 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-10-12 21:00:29,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-12 21:00:29,305 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:00:29,305 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, 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] [2018-10-12 21:00:29,305 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:00:29,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:00:29,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1433957100, now seen corresponding path program 2 times [2018-10-12 21:00:29,307 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:00:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:00:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:00:30,026 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:00:30,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-12 21:00:30,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-12 21:00:30,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-12 21:00:30,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-12 21:00:30,028 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand 14 states. [2018-10-12 21:00:30,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:00:30,933 INFO L93 Difference]: Finished difference Result 75 states and 74 transitions. [2018-10-12 21:00:30,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-12 21:00:30,935 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 106 [2018-10-12 21:00:30,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:00:30,936 INFO L225 Difference]: With dead ends: 75 [2018-10-12 21:00:30,936 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:00:30,937 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2018-10-12 21:00:30,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:00:30,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:00:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:00:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:00:30,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2018-10-12 21:00:30,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:00:30,939 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:00:30,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-12 21:00:30,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:00:30,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:00:30,945 INFO L202 PluginConnector]: Adding new model dll_extends_pointer_true-valid-memsafety.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:00:30 BoogieIcfgContainer [2018-10-12 21:00:30,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:00:30,946 INFO L168 Benchmark]: Toolchain (without parser) took 5631.32 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. [2018-10-12 21:00:30,948 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 21:00:30,948 INFO L168 Benchmark]: Boogie Preprocessor took 78.03 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 21:00:30,949 INFO L168 Benchmark]: RCFGBuilder took 775.63 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. [2018-10-12 21:00:30,950 INFO L168 Benchmark]: TraceAbstraction took 4773.62 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: 309.3 MB). Peak memory consumption was 309.3 MB. Max. memory is 7.1 GB. [2018-10-12 21:00:30,954 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 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.03 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 775.63 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 4773.62 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: 309.3 MB). Peak memory consumption was 309.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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, 80 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 2.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 172 SDtfs, 919 SDslu, 621 SDs, 0 SdLazy, 542 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 8 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred 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, 59 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 231 ConstructedInterpolants, 0 QuantifiedInterpolants, 130123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 29/31 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/dll_extends_pointer_true-valid-memsafety.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-00-30-966.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/dll_extends_pointer_true-valid-memsafety.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-00-30-966.csv Received shutdown request...