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/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:40:56,296 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:40:56,299 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:40:56,317 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:40:56,317 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:40:56,318 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:40:56,321 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:40:56,323 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:40:56,325 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:40:56,325 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:40:56,326 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:40:56,327 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:40:56,328 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:40:56,329 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:40:56,330 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:40:56,330 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:40:56,331 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:40:56,333 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:40:56,335 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:40:56,337 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:40:56,338 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:40:56,339 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:40:56,341 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:40:56,342 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:40:56,342 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:40:56,343 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:40:56,344 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:40:56,345 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:40:56,345 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:40:56,348 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:40:56,348 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:40:56,349 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 15:40:56,350 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 15:40:56,350 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 15:40:56,352 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 15:40:56,353 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 15:40:56,353 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 15:40:56,374 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:40:56,374 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:40:56,375 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:40:56,375 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:40:56,376 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:40:56,376 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:40:56,377 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:40:56,377 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:40:56,377 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:40:56,377 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:40:56,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:40:56,378 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:40:56,378 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:40:56,378 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:40:56,379 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:40:56,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:40:56,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:40:56,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:40:56,440 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:40:56,441 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:40:56,441 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl [2018-10-10 15:40:56,441 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl' [2018-10-10 15:40:56,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:40:56,500 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:40:56,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:40:56,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:40:56,501 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:40:56,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:40:56" (1/1) ... [2018-10-10 15:40:56,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:40:56" (1/1) ... [2018-10-10 15:40:56,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:40:56" (1/1) ... [2018-10-10 15:40:56,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:40:56" (1/1) ... [2018-10-10 15:40:56,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:40:56" (1/1) ... [2018-10-10 15:40:56,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:40:56" (1/1) ... [2018-10-10 15:40:56,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:40:56" (1/1) ... [2018-10-10 15:40:56,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:40:56,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:40:56,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:40:56,555 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:40:56,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:40:56" (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 15:40:56,626 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:40:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:40:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:40:57,110 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:40:57,111 INFO L202 PluginConnector]: Adding new model openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:40:57 BoogieIcfgContainer [2018-10-10 15:40:57,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:40:57,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:40:57,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:40:57,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:40:57,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:40:56" (1/2) ... [2018-10-10 15:40:57,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e8561 and model type openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:40:57, skipping insertion in model container [2018-10-10 15:40:57,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:40:57" (2/2) ... [2018-10-10 15:40:57,120 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl [2018-10-10 15:40:57,131 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:40:57,139 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:40:57,157 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:40:57,186 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:40:57,187 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:40:57,187 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:40:57,188 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:40:57,188 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:40:57,188 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:40:57,188 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:40:57,188 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:40:57,188 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:40:57,207 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-10 15:40:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-10 15:40:57,217 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:40:57,218 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] [2018-10-10 15:40:57,219 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:40:57,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:40:57,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1440982301, now seen corresponding path program 1 times [2018-10-10 15:40:57,290 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:40:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:40:58,152 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 15:40:58,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:40:58,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 15:40:58,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 15:40:58,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 15:40:58,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-10-10 15:40:58,180 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 13 states. [2018-10-10 15:40:58,880 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-10 15:40:59,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:40:59,483 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-10-10 15:40:59,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 15:40:59,485 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2018-10-10 15:40:59,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:40:59,498 INFO L225 Difference]: With dead ends: 71 [2018-10-10 15:40:59,498 INFO L226 Difference]: Without dead ends: 71 [2018-10-10 15:40:59,501 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-10 15:40:59,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-10 15:40:59,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 58. [2018-10-10 15:40:59,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-10 15:40:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-10-10 15:40:59,543 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 42 [2018-10-10 15:40:59,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:40:59,543 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-10-10 15:40:59,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 15:40:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-10-10 15:40:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-10 15:40:59,546 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:40:59,546 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:40:59,547 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:40:59,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:40:59,547 INFO L82 PathProgramCache]: Analyzing trace with hash -971624712, now seen corresponding path program 1 times [2018-10-10 15:40:59,548 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:40:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:00,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:00,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-10-10 15:41:00,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-10 15:41:00,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-10 15:41:00,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2018-10-10 15:41:00,365 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 19 states. [2018-10-10 15:41:02,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:02,871 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-10-10 15:41:02,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-10 15:41:02,872 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 57 [2018-10-10 15:41:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:02,874 INFO L225 Difference]: With dead ends: 86 [2018-10-10 15:41:02,874 INFO L226 Difference]: Without dead ends: 86 [2018-10-10 15:41:02,878 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2018-10-10 15:41:02,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-10-10 15:41:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2018-10-10 15:41:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-10 15:41:02,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-10-10 15:41:02,888 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 57 [2018-10-10 15:41:02,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:02,889 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-10-10 15:41:02,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-10 15:41:02,889 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-10-10 15:41:02,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-10 15:41:02,891 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:02,892 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-10-10 15:41:02,892 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:02,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:02,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1706102339, now seen corresponding path program 2 times [2018-10-10 15:41:02,894 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:03,709 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:03,710 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:03,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-10-10 15:41:03,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-10-10 15:41:03,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-10-10 15:41:03,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2018-10-10 15:41:03,712 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 23 states. [2018-10-10 15:41:05,590 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-10-10 15:41:05,786 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-10-10 15:41:06,005 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-10-10 15:41:06,266 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-10 15:41:06,466 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-10-10 15:41:06,650 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-10-10 15:41:06,836 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-10-10 15:41:07,012 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-10 15:41:07,187 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2018-10-10 15:41:07,417 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-10 15:41:07,621 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-10 15:41:07,850 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-10 15:41:08,055 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-10-10 15:41:08,311 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-10-10 15:41:08,527 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-10-10 15:41:08,722 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-10 15:41:08,930 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2018-10-10 15:41:09,222 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-10 15:41:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:09,231 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-10-10 15:41:09,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-10 15:41:09,231 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 72 [2018-10-10 15:41:09,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:09,233 INFO L225 Difference]: With dead ends: 84 [2018-10-10 15:41:09,233 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:41:09,235 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=584, Invalid=2172, Unknown=0, NotChecked=0, Total=2756 [2018-10-10 15:41:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:41:09,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:41:09,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:41:09,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:41:09,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2018-10-10 15:41:09,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:09,237 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:41:09,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-10-10 15:41:09,237 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:41:09,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:41:09,242 INFO L202 PluginConnector]: Adding new model openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:41:09 BoogieIcfgContainer [2018-10-10 15:41:09,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:41:09,243 INFO L168 Benchmark]: Toolchain (without parser) took 12744.22 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 141.6 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -103.3 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2018-10-10 15:41:09,244 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 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. [2018-10-10 15:41:09,245 INFO L168 Benchmark]: Boogie Preprocessor took 53.46 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. [2018-10-10 15:41:09,245 INFO L168 Benchmark]: RCFGBuilder took 556.97 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. [2018-10-10 15:41:09,246 INFO L168 Benchmark]: TraceAbstraction took 12129.36 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 141.6 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -124.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. [2018-10-10 15:41:09,250 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 0.15 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 53.46 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 556.97 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 12129.36 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 141.6 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -124.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 116]: 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, 54 locations, 1 error locations. SAFE Result, 12.0s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 9.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 129 SDtfs, 1196 SDslu, 1207 SDs, 0 SdLazy, 983 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 97667 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/33 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/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-41-09-261.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-41-09-261.csv Received shutdown request...