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/cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:39:48,994 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:39:48,997 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:39:49,009 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:39:49,009 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:39:49,010 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:39:49,011 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:39:49,013 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:39:49,014 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:39:49,015 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:39:49,016 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:39:49,017 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:39:49,017 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:39:49,018 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:39:49,020 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:39:49,020 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:39:49,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:39:49,024 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:39:49,027 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:39:49,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:39:49,033 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:39:49,034 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:39:49,037 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:39:49,037 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:39:49,038 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:39:49,038 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:39:49,041 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:39:49,042 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:39:49,042 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:39:49,043 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:39:49,044 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:39:49,047 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:39:49,047 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:39:49,047 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:39:49,048 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:39:49,049 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:39:49,052 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 16:39:49,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:39:49,068 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:39:49,069 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:39:49,069 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:39:49,069 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:39:49,069 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:39:49,070 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:39:49,070 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:39:49,071 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:39:49,071 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:39:49,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:39:49,071 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:39:49,071 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:39:49,073 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:39:49,073 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:39:49,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:39:49,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:39:49,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:39:49,156 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:39:49,156 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:39:49,157 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-14 16:39:49,157 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl' [2018-10-14 16:39:49,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:39:49,243 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:39:49,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:39:49,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:39:49,244 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:39:49,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:49" (1/1) ... [2018-10-14 16:39:49,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:49" (1/1) ... [2018-10-14 16:39:49,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:49" (1/1) ... [2018-10-14 16:39:49,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:49" (1/1) ... [2018-10-14 16:39:49,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:49" (1/1) ... [2018-10-14 16:39:49,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:49" (1/1) ... [2018-10-14 16:39:49,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:49" (1/1) ... [2018-10-14 16:39:49,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:39:49,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:39:49,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:39:49,320 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:39:49,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:49" (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 16:39:49,396 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:39:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:39:49,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:39:50,138 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:39:50,139 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:39:50 BoogieIcfgContainer [2018-10-14 16:39:50,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:39:50,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:39:50,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:39:50,144 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:39:50,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:39:49" (1/2) ... [2018-10-14 16:39:50,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cecefc3 and model type cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:39:50, skipping insertion in model container [2018-10-14 16:39:50,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:39:50" (2/2) ... [2018-10-14 16:39:50,148 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-14 16:39:50,157 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:39:50,166 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:39:50,183 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:39:50,212 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:39:50,213 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:39:50,213 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:39:50,213 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:39:50,213 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:39:50,213 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:39:50,213 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:39:50,214 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:39:50,214 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:39:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-10-14 16:39:50,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-14 16:39:50,247 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:39:50,248 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:39:50,249 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:39:50,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:39:50,256 INFO L82 PathProgramCache]: Analyzing trace with hash -240285639, now seen corresponding path program 1 times [2018-10-14 16:39:50,318 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:39:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:39:51,960 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-14 16:39:52,800 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 16:39:52,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:39:52,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-10-14 16:39:52,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-14 16:39:52,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-14 16:39:52,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=694, Unknown=0, NotChecked=0, Total=756 [2018-10-14 16:39:52,830 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 28 states. [2018-10-14 16:39:55,651 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-10-14 16:39:56,097 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2018-10-14 16:39:56,378 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2018-10-14 16:39:57,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:39:57,185 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2018-10-14 16:39:57,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-10-14 16:39:57,187 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 94 [2018-10-14 16:39:57,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:39:57,201 INFO L225 Difference]: With dead ends: 123 [2018-10-14 16:39:57,201 INFO L226 Difference]: Without dead ends: 123 [2018-10-14 16:39:57,205 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=485, Invalid=2937, Unknown=0, NotChecked=0, Total=3422 [2018-10-14 16:39:57,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-10-14 16:39:57,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 110. [2018-10-14 16:39:57,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-10-14 16:39:57,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2018-10-14 16:39:57,252 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 94 [2018-10-14 16:39:57,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:39:57,253 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2018-10-14 16:39:57,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-14 16:39:57,253 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2018-10-14 16:39:57,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-14 16:39:57,257 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:39:57,258 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:57,258 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:39:57,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:39:57,259 INFO L82 PathProgramCache]: Analyzing trace with hash 619448846, now seen corresponding path program 1 times [2018-10-14 16:39:57,260 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:39:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:39:58,995 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:39:58,995 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:39:58,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-10-14 16:39:58,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-10-14 16:39:58,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-10-14 16:39:58,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1050, Unknown=0, NotChecked=0, Total=1122 [2018-10-14 16:39:58,999 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 34 states. [2018-10-14 16:40:01,833 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2018-10-14 16:40:03,093 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2018-10-14 16:40:03,304 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2018-10-14 16:40:03,537 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-14 16:40:03,765 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-10-14 16:40:04,201 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2018-10-14 16:40:04,384 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2018-10-14 16:40:04,615 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2018-10-14 16:40:04,803 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2018-10-14 16:40:05,082 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2018-10-14 16:40:05,274 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-10-14 16:40:05,533 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2018-10-14 16:40:05,807 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2018-10-14 16:40:06,035 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2018-10-14 16:40:06,274 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2018-10-14 16:40:06,498 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2018-10-14 16:40:06,675 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-10-14 16:40:06,936 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2018-10-14 16:40:07,277 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2018-10-14 16:40:07,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:40:07,297 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2018-10-14 16:40:07,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-10-14 16:40:07,297 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 109 [2018-10-14 16:40:07,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:40:07,300 INFO L225 Difference]: With dead ends: 121 [2018-10-14 16:40:07,300 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:40:07,303 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=723, Invalid=5129, Unknown=0, NotChecked=0, Total=5852 [2018-10-14 16:40:07,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:40:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:40:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:40:07,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:40:07,305 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2018-10-14 16:40:07,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:40:07,305 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:40:07,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-10-14 16:40:07,306 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:40:07,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:40:07,311 INFO L202 PluginConnector]: Adding new model cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:40:07 BoogieIcfgContainer [2018-10-14 16:40:07,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:40:07,312 INFO L168 Benchmark]: Toolchain (without parser) took 18070.15 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 115.3 MB). Free memory was 1.5 GB in the beginning and 949.8 MB in the end (delta: 516.3 MB). Peak memory consumption was 631.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:40:07,314 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:40:07,315 INFO L168 Benchmark]: Boogie Preprocessor took 75.22 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 16:40:07,315 INFO L168 Benchmark]: RCFGBuilder took 820.19 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 16:40:07,316 INFO L168 Benchmark]: TraceAbstraction took 17170.83 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 115.3 MB). Free memory was 1.4 GB in the beginning and 949.8 MB in the end (delta: 484.6 MB). Peak memory consumption was 599.9 MB. Max. memory is 7.1 GB. [2018-10-14 16:40:07,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.22 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 820.19 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 17170.83 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 115.3 MB). Free memory was 1.4 GB in the beginning and 949.8 MB in the end (delta: 484.6 MB). Peak memory consumption was 599.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 183]: 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, 102 locations, 1 error locations. SAFE Result, 17.1s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 12.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 127 SDtfs, 1030 SDslu, 2225 SDs, 0 SdLazy, 2338 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1479 ImplicationChecksByTransitivity, 12.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=1, 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, 2 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 281184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/10 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/cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-40-07-332.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cstrncpy-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-40-07-332.csv Received shutdown request...