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_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:54:54,173 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:54:54,175 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:54:54,186 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:54:54,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:54:54,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:54:54,189 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:54:54,191 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:54:54,192 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:54:54,193 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:54:54,194 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 20:54:54,194 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 20:54:54,195 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 20:54:54,196 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 20:54:54,197 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 20:54:54,198 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 20:54:54,199 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 20:54:54,201 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 20:54:54,203 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 20:54:54,205 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 20:54:54,206 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 20:54:54,207 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 20:54:54,210 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 20:54:54,210 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 20:54:54,210 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 20:54:54,211 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 20:54:54,212 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 20:54:54,213 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 20:54:54,214 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 20:54:54,215 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 20:54:54,215 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 20:54:54,216 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 20:54:54,219 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 20:54:54,228 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:54:54,228 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:54:54,229 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:54:54,229 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:54:54,230 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:54:54,230 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:54:54,231 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:54:54,231 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:54:54,231 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:54:54,231 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:54:54,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:54:54,232 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:54:54,232 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:54:54,233 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:54:54,233 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:54:54,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:54:54,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:54:54,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:54:54,297 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:54:54,298 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:54:54,298 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array02-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-12 20:54:54,299 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/array02-alloca_true-valid-memsafety_true-termination.i_6.bpl' [2018-10-12 20:54:54,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:54:54,363 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:54:54,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:54:54,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:54:54,364 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:54:54,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:54" (1/1) ... [2018-10-12 20:54:54,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:54" (1/1) ... [2018-10-12 20:54:54,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:54" (1/1) ... [2018-10-12 20:54:54,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:54" (1/1) ... [2018-10-12 20:54:54,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:54" (1/1) ... [2018-10-12 20:54:54,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:54" (1/1) ... [2018-10-12 20:54:54,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:54" (1/1) ... [2018-10-12 20:54:54,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:54:54,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:54:54,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:54:54,418 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:54:54,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:54" (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 [2018-10-12 20:54:54,492 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:54:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:54:54,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:54:55,043 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:54:55,044 INFO L202 PluginConnector]: Adding new model array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:54:55 BoogieIcfgContainer [2018-10-12 20:54:55,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:54:55,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:54:55,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:54:55,052 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:54:55,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:54" (1/2) ... [2018-10-12 20:54:55,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788b3e90 and model type array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:54:55, skipping insertion in model container [2018-10-12 20:54:55,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:54:55" (2/2) ... [2018-10-12 20:54:55,055 INFO L112 eAbstractionObserver]: Analyzing ICFG array02-alloca_true-valid-memsafety_true-termination.i_6.bpl [2018-10-12 20:54:55,066 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:54:55,079 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:54:55,094 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:54:55,119 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:54:55,120 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:54:55,120 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:54:55,120 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:54:55,121 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:54:55,121 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:54:55,121 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:54:55,121 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:54:55,121 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:54:55,138 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-10-12 20:54:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-12 20:54:55,147 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:55,148 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] [2018-10-12 20:54:55,149 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:55,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:55,156 INFO L82 PathProgramCache]: Analyzing trace with hash 798520935, now seen corresponding path program 1 times [2018-10-12 20:54:55,205 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:56,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:54:56,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 20:54:56,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 20:54:56,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 20:54:56,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-10-12 20:54:56,029 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 12 states. [2018-10-12 20:54:56,773 WARN L178 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-12 20:54:57,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:57,164 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-10-12 20:54:57,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-12 20:54:57,166 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-10-12 20:54:57,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:57,180 INFO L225 Difference]: With dead ends: 77 [2018-10-12 20:54:57,180 INFO L226 Difference]: Without dead ends: 77 [2018-10-12 20:54:57,183 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2018-10-12 20:54:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-10-12 20:54:57,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 58. [2018-10-12 20:54:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-12 20:54:57,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-10-12 20:54:57,227 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 33 [2018-10-12 20:54:57,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:57,227 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-10-12 20:54:57,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 20:54:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-10-12 20:54:57,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-12 20:54:57,230 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:57,232 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] [2018-10-12 20:54:57,233 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:57,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:57,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1736396982, now seen corresponding path program 1 times [2018-10-12 20:54:57,236 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:57,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:57,882 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:54:57,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-12 20:54:57,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-12 20:54:57,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-12 20:54:57,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-10-12 20:54:57,885 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 16 states. [2018-10-12 20:54:59,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:59,558 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-10-12 20:54:59,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-12 20:54:59,561 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 57 [2018-10-12 20:54:59,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:59,564 INFO L225 Difference]: With dead ends: 104 [2018-10-12 20:54:59,564 INFO L226 Difference]: Without dead ends: 104 [2018-10-12 20:54:59,566 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-10-12 20:54:59,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-10-12 20:54:59,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 82. [2018-10-12 20:54:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-12 20:54:59,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-10-12 20:54:59,577 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 57 [2018-10-12 20:54:59,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:59,577 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-10-12 20:54:59,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-12 20:54:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-10-12 20:54:59,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-12 20:54:59,580 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:59,581 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-10-12 20:54:59,581 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:59,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:59,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1176506875, now seen corresponding path program 2 times [2018-10-12 20:54:59,583 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:55:00,059 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:55:00,060 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:55:00,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-10-12 20:55:00,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-12 20:55:00,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-12 20:55:00,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2018-10-12 20:55:00,063 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 18 states. [2018-10-12 20:55:00,478 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-10-12 20:55:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:55:01,725 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2018-10-12 20:55:01,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-12 20:55:01,726 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 81 [2018-10-12 20:55:01,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:55:01,727 INFO L225 Difference]: With dead ends: 102 [2018-10-12 20:55:01,728 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 20:55:01,729 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=375, Invalid=957, Unknown=0, NotChecked=0, Total=1332 [2018-10-12 20:55:01,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 20:55:01,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 20:55:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 20:55:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 20:55:01,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2018-10-12 20:55:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:55:01,731 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 20:55:01,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-12 20:55:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 20:55:01,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 20:55:01,736 INFO L202 PluginConnector]: Adding new model array02-alloca_true-valid-memsafety_true-termination.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:55:01 BoogieIcfgContainer [2018-10-12 20:55:01,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 20:55:01,738 INFO L168 Benchmark]: Toolchain (without parser) took 7376.10 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 38.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -22.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2018-10-12 20:55:01,739 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:55:01,740 INFO L168 Benchmark]: Boogie Preprocessor took 53.68 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:55:01,741 INFO L168 Benchmark]: RCFGBuilder took 626.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-12 20:55:01,742 INFO L168 Benchmark]: TraceAbstraction took 6688.92 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 38.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -43.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:55:01,745 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.68 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 626.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6688.92 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 38.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -43.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 114]: 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, 56 locations, 1 error locations. SAFE Result, 6.6s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 4.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 131 SDtfs, 1727 SDslu, 588 SDs, 0 SdLazy, 626 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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, 41 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 110160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/36 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_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_20-55-01-756.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array02-alloca_true-valid-memsafety_true-termination.i_6.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_20-55-01-756.csv Received shutdown request...