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_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:43:08,730 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:43:08,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:43:08,744 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:43:08,744 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:43:08,745 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:43:08,746 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:43:08,748 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:43:08,750 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:43:08,751 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:43:08,752 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:43:08,752 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:43:08,753 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:43:08,758 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:43:08,762 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:43:08,763 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:43:08,763 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:43:08,768 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:43:08,773 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:43:08,777 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:43:08,778 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:43:08,780 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:43:08,785 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:43:08,801 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 15:43:08,815 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:43:08,815 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:43:08,816 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:43:08,816 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:43:08,817 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:43:08,817 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:43:08,817 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:43:08,818 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:43:08,818 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:43:08,818 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:43:08,818 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:43:08,818 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:43:08,819 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:43:08,819 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:43:08,820 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:43:08,883 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:43:08,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:43:08,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:43:08,909 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:43:08,910 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:43:08,910 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-10 15:43:08,911 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl' [2018-10-10 15:43:09,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:43:09,009 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:43:09,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:43:09,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:43:09,010 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:43:09,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:08" (1/1) ... [2018-10-10 15:43:09,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:08" (1/1) ... [2018-10-10 15:43:09,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:08" (1/1) ... [2018-10-10 15:43:09,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:08" (1/1) ... [2018-10-10 15:43:09,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:08" (1/1) ... [2018-10-10 15:43:09,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:08" (1/1) ... [2018-10-10 15:43:09,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:08" (1/1) ... [2018-10-10 15:43:09,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:43:09,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:43:09,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:43:09,098 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:43:09,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:08" (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 15:43:09,182 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:43:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:43:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:43:09,891 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:43:09,892 INFO L202 PluginConnector]: Adding new model openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:43:09 BoogieIcfgContainer [2018-10-10 15:43:09,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:43:09,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:43:09,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:43:09,897 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:43:09,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:08" (1/2) ... [2018-10-10 15:43:09,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f637a6a and model type openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:43:09, skipping insertion in model container [2018-10-10 15:43:09,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:43:09" (2/2) ... [2018-10-10 15:43:09,900 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-10 15:43:09,909 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:43:09,919 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:43:09,936 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:43:09,963 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:43:09,964 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:43:09,964 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:43:09,964 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:43:09,964 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:43:09,964 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:43:09,964 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:43:09,965 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:43:09,965 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:43:09,986 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2018-10-10 15:43:09,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-10 15:43:09,998 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:09,999 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, 1, 1, 1, 1, 1, 1] [2018-10-10 15:43:10,001 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:10,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:10,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1582422144, now seen corresponding path program 1 times [2018-10-10 15:43:10,054 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:10,910 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 15:43:10,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:43:10,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 15:43:10,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:43:10,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:43:10,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:43:10,939 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 12 states. [2018-10-10 15:43:12,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:12,427 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-10-10 15:43:12,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 15:43:12,430 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 100 [2018-10-10 15:43:12,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:12,452 INFO L225 Difference]: With dead ends: 129 [2018-10-10 15:43:12,452 INFO L226 Difference]: Without dead ends: 129 [2018-10-10 15:43:12,458 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2018-10-10 15:43:12,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-10-10 15:43:12,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 116. [2018-10-10 15:43:12,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-10-10 15:43:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-10-10 15:43:12,535 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 100 [2018-10-10 15:43:12,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:12,537 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-10-10 15:43:12,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:43:12,538 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-10-10 15:43:12,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-10 15:43:12,547 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:12,548 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:43:12,548 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:12,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:12,549 INFO L82 PathProgramCache]: Analyzing trace with hash 952376427, now seen corresponding path program 1 times [2018-10-10 15:43:12,552 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:13,543 WARN L178 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 24 [2018-10-10 15:43:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:43:14,486 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:14,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-10 15:43:14,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-10 15:43:14,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-10 15:43:14,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=692, Unknown=0, NotChecked=0, Total=756 [2018-10-10 15:43:14,490 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 28 states. [2018-10-10 15:43:15,712 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-10-10 15:43:16,026 WARN L178 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-10-10 15:43:16,191 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-10-10 15:43:16,661 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-10-10 15:43:18,044 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-10 15:43:18,223 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2018-10-10 15:43:18,381 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2018-10-10 15:43:18,547 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-10 15:43:19,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:19,029 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-10-10 15:43:19,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-10 15:43:19,036 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 115 [2018-10-10 15:43:19,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:19,039 INFO L225 Difference]: With dead ends: 144 [2018-10-10 15:43:19,039 INFO L226 Difference]: Without dead ends: 144 [2018-10-10 15:43:19,041 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=642, Invalid=2550, Unknown=0, NotChecked=0, Total=3192 [2018-10-10 15:43:19,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-10-10 15:43:19,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 131. [2018-10-10 15:43:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-10-10 15:43:19,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-10-10 15:43:19,058 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 115 [2018-10-10 15:43:19,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:19,059 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-10-10 15:43:19,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-10 15:43:19,059 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-10-10 15:43:19,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-10 15:43:19,067 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:19,068 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:19,068 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:19,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:19,069 INFO L82 PathProgramCache]: Analyzing trace with hash 705307936, now seen corresponding path program 2 times [2018-10-10 15:43:19,071 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:21,251 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:43:21,251 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:21,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-10 15:43:21,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-10 15:43:21,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-10 15:43:21,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1178, Unknown=0, NotChecked=0, Total=1260 [2018-10-10 15:43:21,253 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 36 states. [2018-10-10 15:43:22,812 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-10 15:43:23,153 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2018-10-10 15:43:23,376 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2018-10-10 15:43:23,539 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-10 15:43:24,170 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-10 15:43:24,487 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-10 15:43:25,620 WARN L178 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2018-10-10 15:43:25,899 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-10 15:43:26,195 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2018-10-10 15:43:26,701 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2018-10-10 15:43:27,050 WARN L178 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-10-10 15:43:27,350 WARN L178 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-10 15:43:27,789 WARN L178 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2018-10-10 15:43:28,342 WARN L178 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2018-10-10 15:43:28,787 WARN L178 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2018-10-10 15:43:29,241 WARN L178 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2018-10-10 15:43:29,755 WARN L178 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 104 [2018-10-10 15:43:30,034 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2018-10-10 15:43:30,232 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2018-10-10 15:43:30,455 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2018-10-10 15:43:30,694 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-10 15:43:30,914 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2018-10-10 15:43:31,214 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2018-10-10 15:43:31,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:31,282 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2018-10-10 15:43:31,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-10-10 15:43:31,282 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 130 [2018-10-10 15:43:31,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:31,286 INFO L225 Difference]: With dead ends: 159 [2018-10-10 15:43:31,286 INFO L226 Difference]: Without dead ends: 159 [2018-10-10 15:43:31,288 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=764, Invalid=4206, Unknown=0, NotChecked=0, Total=4970 [2018-10-10 15:43:31,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-10-10 15:43:31,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 146. [2018-10-10 15:43:31,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-10-10 15:43:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-10-10 15:43:31,298 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 130 [2018-10-10 15:43:31,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:31,298 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-10-10 15:43:31,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-10 15:43:31,299 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-10-10 15:43:31,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-10 15:43:31,301 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:31,301 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:31,302 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:31,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:31,302 INFO L82 PathProgramCache]: Analyzing trace with hash -820708405, now seen corresponding path program 3 times [2018-10-10 15:43:31,303 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:31,826 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-10 15:43:32,013 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-10 15:43:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-10 15:43:32,867 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:32,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-10 15:43:32,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-10 15:43:32,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-10 15:43:32,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=920, Unknown=0, NotChecked=0, Total=992 [2018-10-10 15:43:32,869 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 32 states. [2018-10-10 15:43:35,234 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2018-10-10 15:43:35,438 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2018-10-10 15:43:35,678 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2018-10-10 15:43:35,948 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2018-10-10 15:43:36,199 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2018-10-10 15:43:36,683 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2018-10-10 15:43:36,894 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2018-10-10 15:43:37,041 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-10-10 15:43:37,225 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2018-10-10 15:43:37,399 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2018-10-10 15:43:37,637 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2018-10-10 15:43:38,036 WARN L178 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2018-10-10 15:43:38,315 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2018-10-10 15:43:38,656 WARN L178 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 96 [2018-10-10 15:43:38,919 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2018-10-10 15:43:39,098 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-10-10 15:43:39,321 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2018-10-10 15:43:39,537 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2018-10-10 15:43:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:39,551 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-10-10 15:43:39,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-10-10 15:43:39,551 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 145 [2018-10-10 15:43:39,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:39,552 INFO L225 Difference]: With dead ends: 144 [2018-10-10 15:43:39,552 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:43:39,555 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=943, Invalid=3749, Unknown=0, NotChecked=0, Total=4692 [2018-10-10 15:43:39,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:43:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:43:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:43:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:43:39,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2018-10-10 15:43:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:39,557 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:43:39,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-10 15:43:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:43:39,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:43:39,564 INFO L202 PluginConnector]: Adding new model openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:43:39 BoogieIcfgContainer [2018-10-10 15:43:39,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:43:39,565 INFO L168 Benchmark]: Toolchain (without parser) took 30557.04 ms. Allocated memory was 1.6 GB in the beginning and 1.9 GB in the end (delta: 352.8 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 343.5 MB). Peak memory consumption was 696.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:43:39,566 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.82 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:43:39,566 INFO L168 Benchmark]: Boogie Preprocessor took 84.46 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:43:39,567 INFO L168 Benchmark]: RCFGBuilder took 797.70 ms. Allocated memory is still 1.6 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 15:43:39,568 INFO L168 Benchmark]: TraceAbstraction took 29670.64 ms. Allocated memory was 1.6 GB in the beginning and 1.9 GB in the end (delta: 352.8 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 311.7 MB). Peak memory consumption was 664.6 MB. Max. memory is 7.1 GB. [2018-10-10 15:43:39,572 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 0.82 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.46 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 797.70 ms. Allocated memory is still 1.6 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 29670.64 ms. Allocated memory was 1.6 GB in the beginning and 1.9 GB in the end (delta: 352.8 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 311.7 MB). Peak memory consumption was 664.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 199]: 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, 113 locations, 1 error locations. SAFE Result, 29.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 22.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 307 SDtfs, 3964 SDslu, 3571 SDs, 0 SdLazy, 3675 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 21.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=3, 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, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 878946 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 12/90 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_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-43-39-585.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-43-39-585.csv Received shutdown request...