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-b8f97f7-m [2018-10-10 15:40:56,833 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:40:56,835 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:40:56,847 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:40:56,847 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:40:56,849 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:40:56,851 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:40:56,853 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:40:56,856 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:40:56,857 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:40:56,858 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:40:56,858 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:40:56,859 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:40:56,860 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:40:56,861 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:40:56,862 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:40:56,863 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:40:56,865 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:40:56,867 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:40:56,868 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:40:56,869 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:40:56,870 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:40:56,873 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:40:56,873 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:40:56,873 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:40:56,874 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:40:56,875 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:40:56,876 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:40:56,877 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:40:56,878 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:40:56,878 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:40:56,879 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 15:40:56,881 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:40:56,900 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:40:56,900 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:40:56,901 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:40:56,901 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:40:56,901 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:40:56,902 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:40:56,903 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:40:56,904 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:40:56,904 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:40:56,904 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:40:56,904 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:40:56,904 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:40:56,904 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:40:56,906 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:40:56,906 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:40:56,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:40:56,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:40:56,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:40:57,000 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:40:57,000 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:40:57,001 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-10 15:40:57,001 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-10 15:40:57,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:40:57,076 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:40:57,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:40:57,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:40:57,077 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:40:57,102 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 10.10 03:40:57" (1/1) ... [2018-10-10 15:40:57,104 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 10.10 03:40:57" (1/1) ... [2018-10-10 15:40:57,118 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 10.10 03:40:57" (1/1) ... [2018-10-10 15:40:57,119 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 10.10 03:40:57" (1/1) ... [2018-10-10 15:40:57,125 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 10.10 03:40:57" (1/1) ... [2018-10-10 15:40:57,131 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 10.10 03:40:57" (1/1) ... [2018-10-10 15:40:57,133 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 10.10 03:40:57" (1/1) ... [2018-10-10 15:40:57,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:40:57,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:40:57,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:40:57,140 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:40:57,141 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 10.10 03:40:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 15:40:57,206 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:40:57,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:40:57,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:40:57,801 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:40:57,802 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 10.10 03:40:57 BoogieIcfgContainer [2018-10-10 15:40:57,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:40:57,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:40:57,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:40:57,807 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:40:57,807 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 10.10 03:40:57" (1/2) ... [2018-10-10 15:40:57,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@925831a and model type openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:40:57, skipping insertion in model container [2018-10-10 15:40:57,808 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 10.10 03:40:57" (2/2) ... [2018-10-10 15:40:57,810 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-10 15:40:57,819 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:40:57,828 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:40:57,845 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:40:57,874 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:40:57,875 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:40:57,875 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:40:57,875 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:40:57,875 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:40:57,875 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:40:57,876 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:40:57,876 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:40:57,876 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:40:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-10-10 15:40:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-10 15:40:57,906 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:40:57,907 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] [2018-10-10 15:40:57,908 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:40:57,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:40:57,915 INFO L82 PathProgramCache]: Analyzing trace with hash -278276080, now seen corresponding path program 1 times [2018-10-10 15:40:57,977 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:40:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:40:59,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:40:59,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:40:59,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-10-10 15:40:59,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-10 15:40:59,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-10 15:40:59,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-10-10 15:40:59,090 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 15 states. [2018-10-10 15:40:59,508 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-10 15:41:00,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:00,667 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-10-10 15:41:00,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 15:41:00,669 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2018-10-10 15:41:00,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:00,684 INFO L225 Difference]: With dead ends: 109 [2018-10-10 15:41:00,684 INFO L226 Difference]: Without dead ends: 109 [2018-10-10 15:41:00,687 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 [2018-10-10 15:41:00,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-10 15:41:00,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 87. [2018-10-10 15:41:00,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-10-10 15:41:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-10-10 15:41:00,752 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 62 [2018-10-10 15:41:00,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:00,754 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-10-10 15:41:00,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-10 15:41:00,754 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-10-10 15:41:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-10 15:41:00,757 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:00,762 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] [2018-10-10 15:41:00,762 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:00,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:00,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1716070049, now seen corresponding path program 1 times [2018-10-10 15:41:00,766 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:01,883 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:01,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-10-10 15:41:01,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-10 15:41:01,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-10 15:41:01,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2018-10-10 15:41:01,889 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 26 states. [2018-10-10 15:41:02,766 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2018-10-10 15:41:03,683 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2018-10-10 15:41:04,069 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-10-10 15:41:04,380 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-10 15:41:04,545 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-10 15:41:04,886 WARN L178 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-10 15:41:05,303 WARN L178 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-10-10 15:41:05,468 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-10 15:41:05,662 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-10-10 15:41:05,853 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-10 15:41:06,124 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-10-10 15:41:06,638 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-10 15:41:06,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:06,712 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-10-10 15:41:06,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-10-10 15:41:06,712 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 86 [2018-10-10 15:41:06,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:06,715 INFO L225 Difference]: With dead ends: 133 [2018-10-10 15:41:06,715 INFO L226 Difference]: Without dead ends: 133 [2018-10-10 15:41:06,717 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 [2018-10-10 15:41:06,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-10-10 15:41:06,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 111. [2018-10-10 15:41:06,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-10-10 15:41:06,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2018-10-10 15:41:06,729 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 86 [2018-10-10 15:41:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:06,729 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2018-10-10 15:41:06,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-10 15:41:06,730 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2018-10-10 15:41:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-10 15:41:06,734 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:41:06,734 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] [2018-10-10 15:41:06,734 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:41:06,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:41:06,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1748540846, now seen corresponding path program 2 times [2018-10-10 15:41:06,736 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:41:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:41:07,781 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:07,781 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:07,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-10 15:41:07,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-10 15:41:07,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-10 15:41:07,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=748, Unknown=0, NotChecked=0, Total=812 [2018-10-10 15:41:07,783 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 29 states. [2018-10-10 15:41:09,330 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2018-10-10 15:41:09,489 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-10-10 15:41:09,798 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-10 15:41:09,951 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-10 15:41:10,202 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-10 15:41:10,412 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-10-10 15:41:10,623 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-10 15:41:10,899 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-10 15:41:11,152 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2018-10-10 15:41:11,518 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-10-10 15:41:11,785 WARN L178 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2018-10-10 15:41:12,024 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2018-10-10 15:41:12,275 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2018-10-10 15:41:12,541 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2018-10-10 15:41:12,730 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2018-10-10 15:41:12,930 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2018-10-10 15:41:12,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:41:12,991 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-10-10 15:41:12,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-10-10 15:41:12,992 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 110 [2018-10-10 15:41:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:41:12,993 INFO L225 Difference]: With dead ends: 131 [2018-10-10 15:41:12,994 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:41:12,996 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=800, Invalid=2860, Unknown=0, NotChecked=0, Total=3660 [2018-10-10 15:41:12,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:41:12,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:41:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:41:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:41:12,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2018-10-10 15:41:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:41:12,997 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:41:12,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-10 15:41:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:41:12,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:41:13,003 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 10.10 03:41:13 BoogieIcfgContainer [2018-10-10 15:41:13,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:41:13,004 INFO L168 Benchmark]: Toolchain (without parser) took 15929.88 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 106.4 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 291.6 MB). Peak memory consumption was 398.0 MB. Max. memory is 7.1 GB. [2018-10-10 15:41:13,005 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. [2018-10-10 15:41:13,006 INFO L168 Benchmark]: Boogie Preprocessor took 62.69 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. [2018-10-10 15:41:13,007 INFO L168 Benchmark]: RCFGBuilder took 662.55 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. [2018-10-10 15:41:13,008 INFO L168 Benchmark]: TraceAbstraction took 15200.25 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 106.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 259.9 MB). Peak memory consumption was 366.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:41:13,012 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 62.69 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 662.55 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 15200.25 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 106.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 259.9 MB). Peak memory consumption was 366.3 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, 11.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 163 SDtfs, 2784 SDslu, 1415 SDs, 0 SdLazy, 1863 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s 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-0-2018-10-10_15-41-13-024.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-0-2018-10-10_15-41-13-024.csv Received shutdown request...