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/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:38:24,180 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:38:24,182 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:38:24,196 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:38:24,196 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:38:24,198 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:38:24,200 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:38:24,202 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:38:24,204 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:38:24,205 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:38:24,209 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:38:24,209 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:38:24,210 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:38:24,213 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:38:24,214 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:38:24,221 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:38:24,222 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:38:24,226 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:38:24,231 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:38:24,233 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:38:24,234 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:38:24,236 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:38:24,239 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:38:24,239 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:38:24,239 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:38:24,241 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:38:24,242 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:38:24,243 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:38:24,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:38:24,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:38:24,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:38:24,247 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:38:24,247 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:38:24,247 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:38:24,250 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:38:24,251 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:38:24,251 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:38:24,264 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:38:24,265 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:38:24,265 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:38:24,266 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:38:24,266 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:38:24,266 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:38:24,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:38:24,267 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:38:24,267 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:38:24,267 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:38:24,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:38:24,268 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:38:24,268 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:38:24,269 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:38:24,269 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:38:24,312 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:38:24,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:38:24,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:38:24,335 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:38:24,336 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:38:24,337 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-14 16:38:24,337 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-14 16:38:24,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:38:24,424 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:38:24,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:38:24,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:38:24,425 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:38:24,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:38:24" (1/1) ... [2018-10-14 16:38:24,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:38:24" (1/1) ... [2018-10-14 16:38:24,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:38:24" (1/1) ... [2018-10-14 16:38:24,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:38:24" (1/1) ... [2018-10-14 16:38:24,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:38:24" (1/1) ... [2018-10-14 16:38:24,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:38:24" (1/1) ... [2018-10-14 16:38:24,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:38:24" (1/1) ... [2018-10-14 16:38:24,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:38:24,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:38:24,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:38:24,483 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:38:24,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:38:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-14 16:38:24,556 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:38:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:38:24,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:38:25,119 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:38:25,119 INFO L202 PluginConnector]: Adding new model cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:38:25 BoogieIcfgContainer [2018-10-14 16:38:25,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:38:25,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:38:25,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:38:25,124 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:38:25,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:38:24" (1/2) ... [2018-10-14 16:38:25,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cb15d3 and model type cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:38:25, skipping insertion in model container [2018-10-14 16:38:25,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:38:25" (2/2) ... [2018-10-14 16:38:25,127 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-14 16:38:25,137 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:38:25,145 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:38:25,163 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:38:25,193 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:38:25,194 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:38:25,194 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:38:25,195 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:38:25,195 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:38:25,195 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:38:25,195 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:38:25,195 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:38:25,195 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:38:25,215 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-10-14 16:38:25,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-14 16:38:25,226 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:38:25,227 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:38:25,229 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:38:25,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:38:25,235 INFO L82 PathProgramCache]: Analyzing trace with hash 2049004303, now seen corresponding path program 1 times [2018-10-14 16:38:25,299 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:38:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:38:26,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:38:26,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:38:26,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-10-14 16:38:26,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-14 16:38:26,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-14 16:38:26,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-10-14 16:38:26,488 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 17 states. [2018-10-14 16:38:28,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:38:28,622 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-10-14 16:38:28,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-14 16:38:28,624 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2018-10-14 16:38:28,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:38:28,636 INFO L225 Difference]: With dead ends: 115 [2018-10-14 16:38:28,637 INFO L226 Difference]: Without dead ends: 115 [2018-10-14 16:38:28,639 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=244, Invalid=1016, Unknown=0, NotChecked=0, Total=1260 [2018-10-14 16:38:28,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-10-14 16:38:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 93. [2018-10-14 16:38:28,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-10-14 16:38:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2018-10-14 16:38:28,687 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 68 [2018-10-14 16:38:28,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:38:28,688 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2018-10-14 16:38:28,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-14 16:38:28,689 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-10-14 16:38:28,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-10-14 16:38:28,692 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:38:28,692 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:38:28,693 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:38:28,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:38:28,693 INFO L82 PathProgramCache]: Analyzing trace with hash 810072990, now seen corresponding path program 1 times [2018-10-14 16:38:28,694 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:38:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:38:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:38:30,221 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:38:30,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-10-14 16:38:30,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-10-14 16:38:30,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-10-14 16:38:30,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1046, Unknown=0, NotChecked=0, Total=1122 [2018-10-14 16:38:30,225 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 34 states. [2018-10-14 16:38:32,105 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2018-10-14 16:38:33,004 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-14 16:38:33,241 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-10-14 16:38:33,438 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-14 16:38:33,674 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-10-14 16:38:33,902 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-10-14 16:38:34,381 WARN L179 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-10-14 16:38:34,629 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-10-14 16:38:35,015 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-10-14 16:38:35,357 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2018-10-14 16:38:35,663 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2018-10-14 16:38:35,880 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-10-14 16:38:36,178 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-14 16:38:36,420 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-14 16:38:36,634 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-10-14 16:38:36,913 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2018-10-14 16:38:37,275 WARN L179 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-10-14 16:38:37,656 WARN L179 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-10-14 16:38:38,003 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2018-10-14 16:38:38,200 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-10-14 16:38:38,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:38:38,676 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2018-10-14 16:38:38,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-10-14 16:38:38,677 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 92 [2018-10-14 16:38:38,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:38:38,684 INFO L225 Difference]: With dead ends: 139 [2018-10-14 16:38:38,684 INFO L226 Difference]: Without dead ends: 139 [2018-10-14 16:38:38,688 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=1009, Invalid=3961, Unknown=0, NotChecked=0, Total=4970 [2018-10-14 16:38:38,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-10-14 16:38:38,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 117. [2018-10-14 16:38:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-10-14 16:38:38,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2018-10-14 16:38:38,713 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 92 [2018-10-14 16:38:38,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:38:38,714 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2018-10-14 16:38:38,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-10-14 16:38:38,714 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2018-10-14 16:38:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-14 16:38:38,719 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:38:38,720 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-14 16:38:38,720 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:38:38,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:38:38,722 INFO L82 PathProgramCache]: Analyzing trace with hash 397616941, now seen corresponding path program 2 times [2018-10-14 16:38:38,723 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:38:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:38:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 12 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:38:40,210 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:38:40,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-10-14 16:38:40,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-10-14 16:38:40,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-10-14 16:38:40,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2018-10-14 16:38:40,213 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand 40 states. [2018-10-14 16:38:42,059 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2018-10-14 16:38:42,427 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-14 16:38:42,751 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-10-14 16:38:43,006 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-14 16:38:43,251 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-10-14 16:38:43,623 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-10-14 16:38:43,862 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-10-14 16:38:44,120 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-10-14 16:38:44,427 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-10-14 16:38:44,799 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2018-10-14 16:38:45,131 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2018-10-14 16:38:45,342 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-10-14 16:38:45,572 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-14 16:38:45,813 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-10-14 16:38:46,069 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2018-10-14 16:38:46,315 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-14 16:38:46,653 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2018-10-14 16:38:46,950 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-10-14 16:38:47,159 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2018-10-14 16:38:47,407 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-14 16:38:47,726 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-10-14 16:38:48,036 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2018-10-14 16:38:48,332 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-10-14 16:38:48,615 WARN L179 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-10-14 16:38:48,924 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2018-10-14 16:38:49,319 WARN L179 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2018-10-14 16:38:49,707 WARN L179 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-10-14 16:38:49,948 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-14 16:38:50,320 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2018-10-14 16:38:50,593 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-10-14 16:38:50,884 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2018-10-14 16:38:51,180 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-10-14 16:38:51,506 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2018-10-14 16:38:51,849 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2018-10-14 16:38:51,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:38:51,921 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-10-14 16:38:51,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-10-14 16:38:51,922 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 116 [2018-10-14 16:38:51,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:38:51,924 INFO L225 Difference]: With dead ends: 137 [2018-10-14 16:38:51,924 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:38:51,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=1692, Invalid=6498, Unknown=0, NotChecked=0, Total=8190 [2018-10-14 16:38:51,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:38:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:38:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:38:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:38:51,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 116 [2018-10-14 16:38:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:38:51,930 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:38:51,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-10-14 16:38:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:38:51,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:38:51,936 INFO L202 PluginConnector]: Adding new model cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:38:51 BoogieIcfgContainer [2018-10-14 16:38:51,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:38:51,937 INFO L168 Benchmark]: Toolchain (without parser) took 27513.81 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 357.6 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 153.6 MB). Peak memory consumption was 511.1 MB. Max. memory is 7.1 GB. [2018-10-14 16:38:51,938 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:38:51,939 INFO L168 Benchmark]: Boogie Preprocessor took 56.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:38:51,939 INFO L168 Benchmark]: RCFGBuilder took 637.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:38:51,940 INFO L168 Benchmark]: TraceAbstraction took 26815.85 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 357.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 121.9 MB). Peak memory consumption was 479.4 MB. Max. memory is 7.1 GB. [2018-10-14 16:38:51,944 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.88 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 637.21 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 26815.85 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 357.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 121.9 MB). Peak memory consumption was 479.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: 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, 79 locations, 1 error locations. SAFE Result, 26.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 22.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 172 SDtfs, 3392 SDslu, 2203 SDs, 0 SdLazy, 3157 SolverSat, 168 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred 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, 44 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 326574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 12/72 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/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-38-51-954.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-38-51-954.csv Received shutdown request...