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_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:09:01,793 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:09:01,795 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:09:01,807 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:09:01,807 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:09:01,808 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:09:01,810 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:09:01,812 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:09:01,814 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:09:01,815 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:09:01,816 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-12 21:09:01,842 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 21:09:01,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:09:01,859 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:09:01,860 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:09:01,860 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:09:01,860 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:09:01,860 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:09:01,861 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:09:01,861 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:09:01,861 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:09:01,861 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:09:01,862 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:09:01,864 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:09:01,864 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:09:01,865 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:09:01,865 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:09:01,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:09:01,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:09:01,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:09:01,955 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:09:01,956 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:09:01,957 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-12 21:09:01,957 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl' [2018-10-12 21:09:02,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:09:02,035 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:09:02,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:09:02,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:09:02,036 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:09:02,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:02" (1/1) ... [2018-10-12 21:09:02,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:02" (1/1) ... [2018-10-12 21:09:02,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:02" (1/1) ... [2018-10-12 21:09:02,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:02" (1/1) ... [2018-10-12 21:09:02,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:02" (1/1) ... [2018-10-12 21:09:02,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:02" (1/1) ... [2018-10-12 21:09:02,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:02" (1/1) ... [2018-10-12 21:09:02,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:09:02,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:09:02,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:09:02,109 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:09:02,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:02" (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 21:09:02,179 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:09:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:09:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:09:02,851 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:09:02,855 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:09:02 BoogieIcfgContainer [2018-10-12 21:09:02,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:09:02,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:09:02,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:09:02,861 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:09:02,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:09:02" (1/2) ... [2018-10-12 21:09:02,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcd92ce and model type openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:09:02, skipping insertion in model container [2018-10-12 21:09:02,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:09:02" (2/2) ... [2018-10-12 21:09:02,865 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-12 21:09:02,876 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:09:02,887 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:09:02,910 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:09:02,945 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:09:02,946 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:09:02,946 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:09:02,946 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:09:02,947 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:09:02,947 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:09:02,947 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:09:02,947 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:09:02,947 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:09:02,978 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2018-10-12 21:09:02,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-12 21:09:02,997 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:02,999 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] [2018-10-12 21:09:03,001 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:03,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:03,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1489230013, now seen corresponding path program 1 times [2018-10-12 21:09:03,075 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:03,983 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 21:09:03,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:09:03,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 21:09:03,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 21:09:04,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 21:09:04,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-12 21:09:04,011 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 12 states. [2018-10-12 21:09:04,633 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-12 21:09:05,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:05,265 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-10-12 21:09:05,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-12 21:09:05,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2018-10-12 21:09:05,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:05,286 INFO L225 Difference]: With dead ends: 118 [2018-10-12 21:09:05,286 INFO L226 Difference]: Without dead ends: 118 [2018-10-12 21:09:05,290 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 21:09:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-10-12 21:09:05,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2018-10-12 21:09:05,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-10-12 21:09:05,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-10-12 21:09:05,346 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 70 [2018-10-12 21:09:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:05,347 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-10-12 21:09:05,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 21:09:05,347 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-10-12 21:09:05,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-12 21:09:05,353 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:05,355 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] [2018-10-12 21:09:05,356 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:05,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:05,357 INFO L82 PathProgramCache]: Analyzing trace with hash 87157522, now seen corresponding path program 1 times [2018-10-12 21:09:05,358 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:06,180 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-10-12 21:09:06,547 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-12 21:09:07,255 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 21:09:07,255 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:09:07,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-12 21:09:07,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-12 21:09:07,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-12 21:09:07,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-10-12 21:09:07,260 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 28 states. [2018-10-12 21:09:09,075 WARN L178 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-10-12 21:09:09,411 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-12 21:09:09,840 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-10-12 21:09:10,005 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-10-12 21:09:10,238 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-10-12 21:09:10,579 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-10-12 21:09:10,859 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2018-10-12 21:09:11,221 WARN L178 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2018-10-12 21:09:11,542 WARN L178 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2018-10-12 21:09:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:13,340 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-10-12 21:09:13,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-12 21:09:13,344 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 105 [2018-10-12 21:09:13,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:13,347 INFO L225 Difference]: With dead ends: 153 [2018-10-12 21:09:13,347 INFO L226 Difference]: Without dead ends: 153 [2018-10-12 21:09:13,349 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2018-10-12 21:09:13,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-10-12 21:09:13,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 141. [2018-10-12 21:09:13,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-10-12 21:09:13,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2018-10-12 21:09:13,363 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 105 [2018-10-12 21:09:13,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:13,364 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2018-10-12 21:09:13,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-12 21:09:13,364 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2018-10-12 21:09:13,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-12 21:09:13,368 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:13,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:13,369 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:13,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:13,370 INFO L82 PathProgramCache]: Analyzing trace with hash 486035613, now seen corresponding path program 2 times [2018-10-12 21:09:13,371 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:09:15,562 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:09:15,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-12 21:09:15,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-12 21:09:15,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-12 21:09:15,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1312, Unknown=0, NotChecked=0, Total=1406 [2018-10-12 21:09:15,564 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand 38 states. [2018-10-12 21:09:16,697 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-12 21:09:18,128 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-10-12 21:09:18,503 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-12 21:09:18,838 WARN L178 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-12 21:09:19,119 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 21:09:19,317 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-12 21:09:19,544 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-12 21:09:19,866 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-12 21:09:20,096 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-12 21:09:20,729 WARN L178 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-10-12 21:09:21,278 WARN L178 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2018-10-12 21:09:21,903 WARN L178 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2018-10-12 21:09:22,122 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-12 21:09:22,470 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-10-12 21:09:22,774 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-12 21:09:23,260 WARN L178 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2018-10-12 21:09:23,733 WARN L178 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-10-12 21:09:24,185 WARN L178 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2018-10-12 21:09:24,633 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-10-12 21:09:24,823 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-12 21:09:25,050 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-10-12 21:09:25,503 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-12 21:09:25,789 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-12 21:09:26,030 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2018-10-12 21:09:26,371 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2018-10-12 21:09:26,667 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2018-10-12 21:09:27,299 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-12 21:09:27,482 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-12 21:09:27,808 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-10-12 21:09:27,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:27,875 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2018-10-12 21:09:27,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-10-12 21:09:27,876 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 140 [2018-10-12 21:09:27,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:27,880 INFO L225 Difference]: With dead ends: 188 [2018-10-12 21:09:27,880 INFO L226 Difference]: Without dead ends: 188 [2018-10-12 21:09:27,883 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=1102, Invalid=5060, Unknown=0, NotChecked=0, Total=6162 [2018-10-12 21:09:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-10-12 21:09:27,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 176. [2018-10-12 21:09:27,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-10-12 21:09:27,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2018-10-12 21:09:27,898 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 140 [2018-10-12 21:09:27,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:27,899 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2018-10-12 21:09:27,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-12 21:09:27,899 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2018-10-12 21:09:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-12 21:09:27,902 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:27,903 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:27,903 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:27,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:27,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1325623090, now seen corresponding path program 3 times [2018-10-12 21:09:27,905 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-12 21:09:29,960 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:09:29,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-12 21:09:29,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-12 21:09:29,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-12 21:09:29,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1306, Unknown=0, NotChecked=0, Total=1406 [2018-10-12 21:09:29,962 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand 38 states. [2018-10-12 21:09:31,664 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-12 21:09:32,048 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2018-10-12 21:09:32,353 WARN L178 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2018-10-12 21:09:32,960 WARN L178 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2018-10-12 21:09:33,270 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-10-12 21:09:33,665 WARN L178 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2018-10-12 21:09:34,156 WARN L178 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2018-10-12 21:09:34,616 WARN L178 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112 [2018-10-12 21:09:35,057 WARN L178 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2018-10-12 21:09:35,481 WARN L178 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2018-10-12 21:09:35,882 WARN L178 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 114 [2018-10-12 21:09:36,089 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-12 21:09:36,427 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-12 21:09:36,635 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-12 21:09:37,168 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-12 21:09:37,649 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2018-10-12 21:09:37,976 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-10-12 21:09:38,255 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2018-10-12 21:09:38,689 WARN L178 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2018-10-12 21:09:39,011 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2018-10-12 21:09:39,543 WARN L178 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2018-10-12 21:09:40,167 WARN L178 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 117 [2018-10-12 21:09:40,799 WARN L178 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 120 [2018-10-12 21:09:41,475 WARN L178 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2018-10-12 21:09:42,135 WARN L178 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2018-10-12 21:09:42,353 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-10-12 21:09:42,709 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-10-12 21:09:42,897 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-12 21:09:43,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:43,406 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2018-10-12 21:09:43,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-10-12 21:09:43,406 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 175 [2018-10-12 21:09:43,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:43,408 INFO L225 Difference]: With dead ends: 174 [2018-10-12 21:09:43,408 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:09:43,411 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=1551, Invalid=5759, Unknown=0, NotChecked=0, Total=7310 [2018-10-12 21:09:43,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:09:43,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:09:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:09:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:09:43,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2018-10-12 21:09:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:43,413 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:09:43,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-12 21:09:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:09:43,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:09:43,418 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:09:43 BoogieIcfgContainer [2018-10-12 21:09:43,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:09:43,419 INFO L168 Benchmark]: Toolchain (without parser) took 41384.82 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 405.3 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -59.2 MB). Peak memory consumption was 346.1 MB. Max. memory is 7.1 GB. [2018-10-12 21:09:43,420 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 21:09:43,421 INFO L168 Benchmark]: Boogie Preprocessor took 71.19 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. [2018-10-12 21:09:43,421 INFO L168 Benchmark]: RCFGBuilder took 748.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-12 21:09:43,422 INFO L168 Benchmark]: TraceAbstraction took 40561.58 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 405.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -90.9 MB). Peak memory consumption was 314.4 MB. Max. memory is 7.1 GB. [2018-10-12 21:09:43,426 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 0.21 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 71.19 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. * RCFGBuilder took 748.06 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 40561.58 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 405.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -90.9 MB). Peak memory consumption was 314.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 167]: 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, 95 locations, 1 error locations. SAFE Result, 40.4s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 33.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 269 SDtfs, 4713 SDslu, 3312 SDs, 0 SdLazy, 4393 SolverSat, 233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2410 ImplicationChecksByTransitivity, 31.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred 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, 0.1s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 1114262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 11/218 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_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-09-43-437.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-09-43-437.csv Received shutdown request...