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/array02-alloca_true-valid-memsafety_true-termination.i_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:27:47,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:27:47,075 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:27:47,093 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:27:47,094 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:27:47,095 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:27:47,096 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:27:47,098 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:27:47,101 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:27:47,101 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:27:47,103 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:27:47,104 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:27:47,105 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:27:47,106 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:27:47,109 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:27:47,115 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:27:47,116 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:27:47,121 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:27:47,126 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:27:47,130 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:27:47,131 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:27:47,132 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:27:47,135 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:27:47,135 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:27:47,136 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:27:47,136 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:27:47,140 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:27:47,140 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:27:47,141 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:27:47,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:27:47,143 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:27:47,145 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 15:27:47,145 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 15:27:47,145 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 15:27:47,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 15:27:47,148 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 15:27:47,149 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:27:47,164 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:27:47,164 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:27:47,166 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:27:47,166 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:27:47,166 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:27:47,166 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:27:47,167 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:27:47,168 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:27:47,168 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:27:47,168 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:27:47,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:27:47,168 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:27:47,169 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:27:47,169 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:27:47,170 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:27:47,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:27:47,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:27:47,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:27:47,255 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:27:47,255 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:27:47,256 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array02-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-10 15:27:47,257 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array02-alloca_true-valid-memsafety_true-termination.i_8.bpl' [2018-10-10 15:27:47,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:27:47,350 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:27:47,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:27:47,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:27:47,351 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:27:47,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:27:47" (1/1) ... [2018-10-10 15:27:47,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:27:47" (1/1) ... [2018-10-10 15:27:47,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:27:47" (1/1) ... [2018-10-10 15:27:47,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:27:47" (1/1) ... [2018-10-10 15:27:47,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:27:47" (1/1) ... [2018-10-10 15:27:47,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:27:47" (1/1) ... [2018-10-10 15:27:47,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:27:47" (1/1) ... [2018-10-10 15:27:47,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:27:47,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:27:47,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:27:47,432 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:27:47,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:27:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 15:27:47,510 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:27:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:27:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:27:48,099 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:27:48,100 INFO L202 PluginConnector]: Adding new model array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:27:48 BoogieIcfgContainer [2018-10-10 15:27:48,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:27:48,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:27:48,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:27:48,104 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:27:48,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:27:47" (1/2) ... [2018-10-10 15:27:48,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff4985f and model type array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:27:48, skipping insertion in model container [2018-10-10 15:27:48,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:27:48" (2/2) ... [2018-10-10 15:27:48,108 INFO L112 eAbstractionObserver]: Analyzing ICFG array02-alloca_true-valid-memsafety_true-termination.i_8.bpl [2018-10-10 15:27:48,117 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:27:48,124 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:27:48,141 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:27:48,171 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:27:48,172 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:27:48,172 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:27:48,172 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:27:48,172 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:27:48,172 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:27:48,172 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:27:48,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:27:48,173 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:27:48,192 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2018-10-10 15:27:48,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-10 15:27:48,202 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:27:48,203 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:27:48,204 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:27:48,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:27:48,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1907466107, now seen corresponding path program 1 times [2018-10-10 15:27:48,266 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:27:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:27:49,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:27:49,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:27:49,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 15:27:49,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:27:49,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:27:49,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:27:49,066 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 12 states. [2018-10-10 15:27:49,615 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-10 15:27:50,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:27:50,013 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-10-10 15:27:50,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 15:27:50,014 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2018-10-10 15:27:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:27:50,028 INFO L225 Difference]: With dead ends: 105 [2018-10-10 15:27:50,028 INFO L226 Difference]: Without dead ends: 91 [2018-10-10 15:27:50,031 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2018-10-10 15:27:50,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-10-10 15:27:50,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2018-10-10 15:27:50,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-10-10 15:27:50,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-10-10 15:27:50,076 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 53 [2018-10-10 15:27:50,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:27:50,076 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-10-10 15:27:50,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:27:50,077 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-10-10 15:27:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-10 15:27:50,080 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:27:50,080 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:27:50,080 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:27:50,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:27:50,081 INFO L82 PathProgramCache]: Analyzing trace with hash -789714324, now seen corresponding path program 1 times [2018-10-10 15:27:50,082 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:27:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:27:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:27:50,490 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:27:50,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-10 15:27:50,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 15:27:50,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 15:27:50,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2018-10-10 15:27:50,493 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 14 states. [2018-10-10 15:27:51,150 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-10 15:27:52,009 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-10-10 15:27:52,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:27:52,033 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-10-10 15:27:52,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 15:27:52,034 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 77 [2018-10-10 15:27:52,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:27:52,036 INFO L225 Difference]: With dead ends: 129 [2018-10-10 15:27:52,037 INFO L226 Difference]: Without dead ends: 115 [2018-10-10 15:27:52,038 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2018-10-10 15:27:52,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-10-10 15:27:52,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102. [2018-10-10 15:27:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-10-10 15:27:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-10-10 15:27:52,050 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 77 [2018-10-10 15:27:52,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:27:52,050 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-10-10 15:27:52,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 15:27:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-10-10 15:27:52,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-10 15:27:52,053 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:27:52,054 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-10 15:27:52,054 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:27:52,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:27:52,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1545293219, now seen corresponding path program 2 times [2018-10-10 15:27:52,055 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:27:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:27:52,851 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:27:52,852 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:27:52,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-10 15:27:52,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-10 15:27:52,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-10 15:27:52,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-10-10 15:27:52,854 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 16 states. [2018-10-10 15:27:53,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:27:53,611 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-10-10 15:27:53,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 15:27:53,612 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 101 [2018-10-10 15:27:53,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:27:53,615 INFO L225 Difference]: With dead ends: 113 [2018-10-10 15:27:53,615 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:27:53,616 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=260, Invalid=732, Unknown=0, NotChecked=0, Total=992 [2018-10-10 15:27:53,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:27:53,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:27:53,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:27:53,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:27:53,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2018-10-10 15:27:53,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:27:53,617 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:27:53,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-10 15:27:53,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:27:53,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:27:53,622 INFO L202 PluginConnector]: Adding new model array02-alloca_true-valid-memsafety_true-termination.i_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:27:53 BoogieIcfgContainer [2018-10-10 15:27:53,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:27:53,623 INFO L168 Benchmark]: Toolchain (without parser) took 6274.40 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: 351.6 MB). Peak memory consumption was 351.6 MB. Max. memory is 7.1 GB. [2018-10-10 15:27:53,625 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:27:53,625 INFO L168 Benchmark]: Boogie Preprocessor took 80.21 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. [2018-10-10 15:27:53,626 INFO L168 Benchmark]: RCFGBuilder took 668.84 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. [2018-10-10 15:27:53,627 INFO L168 Benchmark]: TraceAbstraction took 5521.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 319.9 MB). Peak memory consumption was 319.9 MB. Max. memory is 7.1 GB. [2018-10-10 15:27:53,631 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 0.23 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 80.21 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. * RCFGBuilder took 668.84 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 5521.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 319.9 MB). Peak memory consumption was 319.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: 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, 70 locations, 1 error locations. SAFE Result, 5.4s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 158 SDtfs, 1509 SDslu, 685 SDs, 0 SdLazy, 535 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 3.2s 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, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 124560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 11/54 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/array02-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-27-53-643.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array02-alloca_true-valid-memsafety_true-termination.i_8.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-27-53-643.csv Received shutdown request...