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_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:09:52,558 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:09:52,560 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:09:52,573 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:09:52,574 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:09:52,575 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:09:52,576 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:09:52,578 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:09:52,579 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:09:52,580 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:09:52,581 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-12 21:09:52,607 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 21:09:52,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:09:52,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:09:52,618 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:09:52,618 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:09:52,618 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:09:52,618 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:09:52,619 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:09:52,619 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:09:52,619 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:09:52,620 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:09:52,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:09:52,620 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:09:52,620 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:09:52,623 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:09:52,624 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:09:52,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:09:52,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:09:52,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:09:52,685 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:09:52,686 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:09:52,687 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl [2018-10-12 21:09:52,687 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl' [2018-10-12 21:09:52,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:09:52,756 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:09:52,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:09:52,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:09:52,757 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:09:52,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:52" (1/1) ... [2018-10-12 21:09:52,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:52" (1/1) ... [2018-10-12 21:09:52,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:52" (1/1) ... [2018-10-12 21:09:52,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:52" (1/1) ... [2018-10-12 21:09:52,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:52" (1/1) ... [2018-10-12 21:09:52,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:52" (1/1) ... [2018-10-12 21:09:52,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:52" (1/1) ... [2018-10-12 21:09:52,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:09:52,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:09:52,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:09:52,819 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:09:52,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:52" (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 21:09:52,894 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:09:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:09:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:09:53,641 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:09:53,641 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:09:53 BoogieIcfgContainer [2018-10-12 21:09:53,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:09:53,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:09:53,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:09:53,646 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:09:53,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:52" (1/2) ... [2018-10-12 21:09:53,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617a1047 and model type openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:09:53, skipping insertion in model container [2018-10-12 21:09:53,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:09:53" (2/2) ... [2018-10-12 21:09:53,650 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl [2018-10-12 21:09:53,660 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:09:53,668 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:09:53,686 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:09:53,715 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:09:53,715 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:09:53,716 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:09:53,716 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:09:53,716 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:09:53,716 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:09:53,716 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:09:53,717 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:09:53,717 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:09:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-10-12 21:09:53,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-12 21:09:53,748 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:53,750 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] [2018-10-12 21:09:53,751 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:53,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:53,757 INFO L82 PathProgramCache]: Analyzing trace with hash 580255520, now seen corresponding path program 1 times [2018-10-12 21:09:53,817 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:54,595 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 21:09:54,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:09:54,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 21:09:54,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 21:09:54,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 21:09:54,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-12 21:09:54,624 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 12 states. [2018-10-12 21:09:55,365 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-12 21:09:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:56,044 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-10-12 21:09:56,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-12 21:09:56,046 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2018-10-12 21:09:56,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:56,061 INFO L225 Difference]: With dead ends: 125 [2018-10-12 21:09:56,061 INFO L226 Difference]: Without dead ends: 125 [2018-10-12 21:09:56,067 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2018-10-12 21:09:56,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-10-12 21:09:56,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 113. [2018-10-12 21:09:56,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-12 21:09:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-10-12 21:09:56,132 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 73 [2018-10-12 21:09:56,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:56,133 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-10-12 21:09:56,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 21:09:56,133 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-10-12 21:09:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-12 21:09:56,143 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:56,144 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:56,144 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:56,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:56,145 INFO L82 PathProgramCache]: Analyzing trace with hash -392618884, now seen corresponding path program 1 times [2018-10-12 21:09:56,146 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:09:58,018 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:09:58,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-12 21:09:58,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-12 21:09:58,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-12 21:09:58,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-10-12 21:09:58,021 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 28 states. [2018-10-12 21:09:59,719 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-10-12 21:10:00,005 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-12 21:10:00,424 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2018-10-12 21:10:00,853 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2018-10-12 21:10:01,152 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2018-10-12 21:10:01,449 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2018-10-12 21:10:01,772 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2018-10-12 21:10:02,053 WARN L178 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2018-10-12 21:10:03,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:03,902 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-10-12 21:10:03,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-12 21:10:03,910 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 112 [2018-10-12 21:10:03,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:03,917 INFO L225 Difference]: With dead ends: 164 [2018-10-12 21:10:03,917 INFO L226 Difference]: Without dead ends: 164 [2018-10-12 21:10:03,921 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2018-10-12 21:10:03,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-10-12 21:10:03,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2018-10-12 21:10:03,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-10-12 21:10:03,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-10-12 21:10:03,952 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 112 [2018-10-12 21:10:03,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:03,953 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-10-12 21:10:03,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-12 21:10:03,953 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-10-12 21:10:03,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-12 21:10:03,961 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:03,961 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:10:03,962 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:03,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:03,962 INFO L82 PathProgramCache]: Analyzing trace with hash -398332000, now seen corresponding path program 2 times [2018-10-12 21:10:03,964 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:05,347 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2018-10-12 21:10:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:10:06,909 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:06,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-12 21:10:06,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-12 21:10:06,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-12 21:10:06,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1312, Unknown=0, NotChecked=0, Total=1406 [2018-10-12 21:10:06,912 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 38 states. [2018-10-12 21:10:08,710 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-10-12 21:10:09,032 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-12 21:10:09,358 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-12 21:10:09,673 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 21:10:09,951 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-12 21:10:10,158 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-12 21:10:10,472 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-12 21:10:10,674 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-12 21:10:11,304 WARN L178 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-10-12 21:10:11,766 WARN L178 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2018-10-12 21:10:12,192 WARN L178 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2018-10-12 21:10:12,540 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-12 21:10:12,785 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-10-12 21:10:13,092 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-12 21:10:13,569 WARN L178 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2018-10-12 21:10:14,055 WARN L178 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-10-12 21:10:14,522 WARN L178 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2018-10-12 21:10:14,948 WARN L178 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-10-12 21:10:15,135 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-12 21:10:15,348 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-10-12 21:10:15,767 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-12 21:10:16,041 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-12 21:10:16,255 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2018-10-12 21:10:16,536 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2018-10-12 21:10:16,777 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2018-10-12 21:10:16,946 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-12 21:10:17,214 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-12 21:10:17,422 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-12 21:10:17,640 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 21:10:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:17,990 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2018-10-12 21:10:17,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-10-12 21:10:17,990 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 151 [2018-10-12 21:10:17,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:17,993 INFO L225 Difference]: With dead ends: 203 [2018-10-12 21:10:17,993 INFO L226 Difference]: Without dead ends: 203 [2018-10-12 21:10:17,996 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=1102, Invalid=5060, Unknown=0, NotChecked=0, Total=6162 [2018-10-12 21:10:17,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-10-12 21:10:18,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 191. [2018-10-12 21:10:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-10-12 21:10:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 191 transitions. [2018-10-12 21:10:18,009 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 191 transitions. Word has length 151 [2018-10-12 21:10:18,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:18,010 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 191 transitions. [2018-10-12 21:10:18,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-12 21:10:18,010 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 191 transitions. [2018-10-12 21:10:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-12 21:10:18,013 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:18,013 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-12 21:10:18,014 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:18,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:18,014 INFO L82 PathProgramCache]: Analyzing trace with hash 156736508, now seen corresponding path program 3 times [2018-10-12 21:10:18,015 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-12 21:10:19,924 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:19,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-12 21:10:19,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-12 21:10:19,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-12 21:10:19,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1306, Unknown=0, NotChecked=0, Total=1406 [2018-10-12 21:10:19,925 INFO L87 Difference]: Start difference. First operand 191 states and 191 transitions. Second operand 38 states. [2018-10-12 21:10:21,620 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2018-10-12 21:10:22,023 WARN L178 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2018-10-12 21:10:22,340 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-10-12 21:10:23,085 WARN L178 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2018-10-12 21:10:23,537 WARN L178 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2018-10-12 21:10:24,060 WARN L178 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2018-10-12 21:10:24,692 WARN L178 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 128 [2018-10-12 21:10:25,342 WARN L178 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 131 [2018-10-12 21:10:25,964 WARN L178 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 134 [2018-10-12 21:10:26,648 WARN L178 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 136 [2018-10-12 21:10:27,272 WARN L178 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 133 [2018-10-12 21:10:27,521 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-10-12 21:10:27,708 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-12 21:10:27,948 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-12 21:10:29,107 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2018-10-12 21:10:29,554 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-10-12 21:10:29,850 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2018-10-12 21:10:30,252 WARN L178 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 118 [2018-10-12 21:10:30,643 WARN L178 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2018-10-12 21:10:31,177 WARN L178 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 126 [2018-10-12 21:10:31,799 WARN L178 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 131 [2018-10-12 21:10:32,385 WARN L178 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 134 [2018-10-12 21:10:33,062 WARN L178 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2018-10-12 21:10:33,739 WARN L178 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 134 [2018-10-12 21:10:33,954 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-12 21:10:34,137 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-12 21:10:34,319 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-12 21:10:34,508 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-12 21:10:35,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:35,009 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2018-10-12 21:10:35,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-10-12 21:10:35,010 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 190 [2018-10-12 21:10:35,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:35,011 INFO L225 Difference]: With dead ends: 189 [2018-10-12 21:10:35,012 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:10:35,015 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=1551, Invalid=5759, Unknown=0, NotChecked=0, Total=7310 [2018-10-12 21:10:35,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:10:35,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:10:35,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:10:35,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:10:35,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2018-10-12 21:10:35,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:35,016 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:10:35,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-12 21:10:35,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:10:35,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:10:35,020 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:10:35 BoogieIcfgContainer [2018-10-12 21:10:35,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:10:35,021 INFO L168 Benchmark]: Toolchain (without parser) took 42266.26 ms. Allocated memory was 1.6 GB in the beginning and 2.0 GB in the end (delta: 405.3 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 278.2 MB). Peak memory consumption was 683.4 MB. Max. memory is 7.1 GB. [2018-10-12 21:10:35,022 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-12 21:10:35,023 INFO L168 Benchmark]: Boogie Preprocessor took 61.44 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. [2018-10-12 21:10:35,024 INFO L168 Benchmark]: RCFGBuilder took 823.12 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. [2018-10-12 21:10:35,024 INFO L168 Benchmark]: TraceAbstraction took 41377.61 ms. Allocated memory was 1.6 GB in the beginning and 2.0 GB in the end (delta: 405.3 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 246.4 MB). Peak memory consumption was 651.7 MB. Max. memory is 7.1 GB. [2018-10-12 21:10:35,028 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 0.20 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 61.44 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 823.12 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 41377.61 ms. Allocated memory was 1.6 GB in the beginning and 2.0 GB in the end (delta: 405.3 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 246.4 MB). Peak memory consumption was 651.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 178]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 102 locations, 1 error locations. SAFE Result, 41.3s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 33.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 301 SDtfs, 5183 SDslu, 3753 SDs, 0 SdLazy, 4393 SolverSat, 233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 8 SyntacticMatches, 4 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2418 ImplicationChecksByTransitivity, 32.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred 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, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 526 NumberOfCodeBlocks, 526 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 1324107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 15/234 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_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-10-35-040.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-10-35-040.csv Received shutdown request...