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_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:08:10,931 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:08:10,934 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:08:10,951 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:08:10,951 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:08:10,952 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:08:10,954 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:08:10,956 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:08:10,959 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:08:10,960 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:08:10,961 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 21:08:10,961 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 21:08:10,962 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 21:08:10,963 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 21:08:10,964 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 21:08:10,965 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 21:08:10,966 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 21:08:10,968 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 21:08:10,970 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 21:08:10,971 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 21:08:10,973 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 21:08:10,974 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 21:08:10,976 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-12 21:08:10,985 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 21:08:11,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:08:11,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:08:11,006 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:08:11,009 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:08:11,009 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:08:11,009 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:08:11,010 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:08:11,010 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:08:11,011 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:08:11,011 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:08:11,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:08:11,011 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:08:11,011 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:08:11,012 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:08:11,013 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:08:11,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:08:11,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:08:11,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:08:11,106 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:08:11,107 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:08:11,108 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-12 21:08:11,108 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-12 21:08:11,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:08:11,176 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:08:11,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:08:11,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:08:11,177 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:08:11,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:11" (1/1) ... [2018-10-12 21:08:11,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:11" (1/1) ... [2018-10-12 21:08:11,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:11" (1/1) ... [2018-10-12 21:08:11,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:11" (1/1) ... [2018-10-12 21:08:11,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:11" (1/1) ... [2018-10-12 21:08:11,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:11" (1/1) ... [2018-10-12 21:08:11,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:11" (1/1) ... [2018-10-12 21:08:11,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:08:11,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:08:11,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:08:11,257 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:08:11,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-12 21:08:11,337 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:08:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:08:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:08:11,962 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:08:11,963 INFO L202 PluginConnector]: Adding new model openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:08:11 BoogieIcfgContainer [2018-10-12 21:08:11,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:08:11,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:08:11,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:08:11,968 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:08:11,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:11" (1/2) ... [2018-10-12 21:08:11,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12032514 and model type openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:08:11, skipping insertion in model container [2018-10-12 21:08:11,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:08:11" (2/2) ... [2018-10-12 21:08:11,971 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-12 21:08:11,980 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:08:11,989 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:08:12,004 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:08:12,031 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:08:12,032 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:08:12,033 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:08:12,033 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:08:12,033 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:08:12,033 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:08:12,033 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:08:12,033 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:08:12,034 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:08:12,053 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-10-12 21:08:12,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-12 21:08:12,063 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:08:12,064 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] [2018-10-12 21:08:12,065 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:08:12,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:08:12,072 INFO L82 PathProgramCache]: Analyzing trace with hash -278276080, now seen corresponding path program 1 times [2018-10-12 21:08:12,125 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:08:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:08:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:08:13,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:08:13,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-10-12 21:08:13,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-12 21:08:13,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-12 21:08:13,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-10-12 21:08:13,321 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 15 states. [2018-10-12 21:08:13,705 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-12 21:08:14,151 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-12 21:08:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:08:14,932 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-10-12 21:08:14,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-12 21:08:14,936 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2018-10-12 21:08:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:08:14,955 INFO L225 Difference]: With dead ends: 109 [2018-10-12 21:08:14,955 INFO L226 Difference]: Without dead ends: 109 [2018-10-12 21:08:14,958 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2018-10-12 21:08:14,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-12 21:08:15,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 87. [2018-10-12 21:08:15,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-10-12 21:08:15,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-10-12 21:08:15,005 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 62 [2018-10-12 21:08:15,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:08:15,006 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-10-12 21:08:15,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-12 21:08:15,006 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-10-12 21:08:15,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-12 21:08:15,010 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:08:15,010 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1] [2018-10-12 21:08:15,010 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:08:15,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:08:15,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1716070049, now seen corresponding path program 1 times [2018-10-12 21:08:15,012 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:08:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:08:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:08:16,041 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:08:16,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-10-12 21:08:16,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-12 21:08:16,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-12 21:08:16,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2018-10-12 21:08:16,046 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 26 states. [2018-10-12 21:08:17,871 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2018-10-12 21:08:18,291 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-10-12 21:08:18,623 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 21:08:18,795 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-12 21:08:19,179 WARN L178 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-12 21:08:19,573 WARN L178 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-10-12 21:08:19,766 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 21:08:19,995 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-10-12 21:08:20,192 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-12 21:08:20,435 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-10-12 21:08:20,934 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-12 21:08:21,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:08:21,015 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-10-12 21:08:21,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-10-12 21:08:21,016 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 86 [2018-10-12 21:08:21,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:08:21,018 INFO L225 Difference]: With dead ends: 133 [2018-10-12 21:08:21,019 INFO L226 Difference]: Without dead ends: 133 [2018-10-12 21:08:21,021 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=598, Invalid=2158, Unknown=0, NotChecked=0, Total=2756 [2018-10-12 21:08:21,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-10-12 21:08:21,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 111. [2018-10-12 21:08:21,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-10-12 21:08:21,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2018-10-12 21:08:21,034 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 86 [2018-10-12 21:08:21,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:08:21,035 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2018-10-12 21:08:21,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-12 21:08:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2018-10-12 21:08:21,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-12 21:08:21,037 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:08:21,037 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-12 21:08:21,038 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:08:21,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:08:21,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1748540846, now seen corresponding path program 2 times [2018-10-12 21:08:21,039 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:08:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:08:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:08:22,071 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:08:22,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-12 21:08:22,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-12 21:08:22,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-12 21:08:22,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=748, Unknown=0, NotChecked=0, Total=812 [2018-10-12 21:08:22,073 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 29 states. [2018-10-12 21:08:23,789 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-10-12 21:08:23,954 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 21:08:24,112 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-12 21:08:24,386 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-12 21:08:24,586 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-10-12 21:08:24,805 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 21:08:25,099 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-12 21:08:25,338 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2018-10-12 21:08:25,644 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-10-12 21:08:25,910 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2018-10-12 21:08:26,162 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2018-10-12 21:08:26,420 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2018-10-12 21:08:26,691 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2018-10-12 21:08:26,877 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2018-10-12 21:08:27,082 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2018-10-12 21:08:27,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:08:27,137 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-10-12 21:08:27,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-10-12 21:08:27,142 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 110 [2018-10-12 21:08:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:08:27,143 INFO L225 Difference]: With dead ends: 131 [2018-10-12 21:08:27,143 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:08:27,145 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=800, Invalid=2860, Unknown=0, NotChecked=0, Total=3660 [2018-10-12 21:08:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:08:27,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:08:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:08:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:08:27,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2018-10-12 21:08:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:08:27,147 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:08:27,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-12 21:08:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:08:27,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:08:27,153 INFO L202 PluginConnector]: Adding new model openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:08:27 BoogieIcfgContainer [2018-10-12 21:08:27,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:08:27,154 INFO L168 Benchmark]: Toolchain (without parser) took 15978.98 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 105.4 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 291.9 MB). Peak memory consumption was 397.3 MB. Max. memory is 7.1 GB. [2018-10-12 21:08:27,156 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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. [2018-10-12 21:08:27,157 INFO L168 Benchmark]: Boogie Preprocessor took 78.90 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. [2018-10-12 21:08:27,157 INFO L168 Benchmark]: RCFGBuilder took 706.87 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. [2018-10-12 21:08:27,159 INFO L168 Benchmark]: TraceAbstraction took 15188.81 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 105.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 260.2 MB). Peak memory consumption was 365.6 MB. Max. memory is 7.1 GB. [2018-10-12 21:08:27,165 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 0.22 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. * Boogie Preprocessor took 78.90 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 706.87 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 15188.81 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 105.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 260.2 MB). Peak memory consumption was 365.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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, 77 locations, 1 error locations. SAFE Result, 15.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 11.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 163 SDtfs, 2784 SDslu, 1415 SDs, 0 SdLazy, 1863 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred 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, 2.9s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 255591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/60 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_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-08-27-181.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-08-27-181.csv Received shutdown request...