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_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:42:59,936 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:42:59,938 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:42:59,950 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:42:59,951 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:42:59,952 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:42:59,953 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:42:59,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:42:59,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:42:59,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:42:59,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:42:59,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:42:59,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:42:59,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:42:59,962 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:42:59,962 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:42:59,963 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:42:59,965 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:42:59,967 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:42:59,969 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:42:59,970 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:42:59,971 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:42:59,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:42:59,974 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:42:59,974 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:42:59,975 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:42:59,976 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:42:59,977 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:42:59,978 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:42:59,979 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:42:59,979 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:42:59,980 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 15:42:59,980 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 15:42:59,980 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 15:42:59,981 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 15:42:59,982 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 15:42:59,982 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 15:43:00,001 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:43:00,001 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:43:00,003 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:43:00,003 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:43:00,003 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:43:00,003 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:43:00,004 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:43:00,004 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:43:00,004 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:43:00,005 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:43:00,005 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:43:00,005 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:43:00,006 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:43:00,006 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:43:00,007 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:43:00,057 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:43:00,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:43:00,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:43:00,081 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:43:00,081 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:43:00,083 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-10 15:43:00,083 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-10 15:43:00,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:43:00,174 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:43:00,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:43:00,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:43:00,175 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:43:00,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:00" (1/1) ... [2018-10-10 15:43:00,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:00" (1/1) ... [2018-10-10 15:43:00,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:00" (1/1) ... [2018-10-10 15:43:00,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:00" (1/1) ... [2018-10-10 15:43:00,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:00" (1/1) ... [2018-10-10 15:43:00,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:00" (1/1) ... [2018-10-10 15:43:00,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:00" (1/1) ... [2018-10-10 15:43:00,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:43:00,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:43:00,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:43:00,228 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:43:00,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:00" (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 15:43:00,290 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:43:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:43:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:43:00,875 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:43:00,876 INFO L202 PluginConnector]: Adding new model openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:43:00 BoogieIcfgContainer [2018-10-10 15:43:00,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:43:00,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:43:00,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:43:00,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:43:00,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:00" (1/2) ... [2018-10-10 15:43:00,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e3ab4 and model type openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:43:00, skipping insertion in model container [2018-10-10 15:43:00,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:43:00" (2/2) ... [2018-10-10 15:43:00,885 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-10 15:43:00,896 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:43:00,905 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:43:00,923 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:43:00,952 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:43:00,953 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:43:00,953 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:43:00,954 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:43:00,954 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:43:00,954 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:43:00,954 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:43:00,954 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:43:00,955 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:43:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2018-10-10 15:43:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-10 15:43:00,987 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:00,988 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] [2018-10-10 15:43:00,990 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:00,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:00,996 INFO L82 PathProgramCache]: Analyzing trace with hash 4404506, now seen corresponding path program 1 times [2018-10-10 15:43:01,062 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:01,917 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 15:43:01,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:43:01,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 15:43:01,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:43:01,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:43:01,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:43:01,946 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 12 states. [2018-10-10 15:43:02,720 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-10 15:43:03,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:03,199 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-10-10 15:43:03,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 15:43:03,200 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2018-10-10 15:43:03,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:03,215 INFO L225 Difference]: With dead ends: 108 [2018-10-10 15:43:03,215 INFO L226 Difference]: Without dead ends: 108 [2018-10-10 15:43:03,218 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2018-10-10 15:43:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-10-10 15:43:03,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 95. [2018-10-10 15:43:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-10-10 15:43:03,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2018-10-10 15:43:03,266 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 65 [2018-10-10 15:43:03,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:03,267 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2018-10-10 15:43:03,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:43:03,268 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-10-10 15:43:03,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-10 15:43:03,271 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:03,271 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] [2018-10-10 15:43:03,272 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:03,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:03,272 INFO L82 PathProgramCache]: Analyzing trace with hash -231942991, now seen corresponding path program 1 times [2018-10-10 15:43:03,274 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:04,264 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2018-10-10 15:43:05,045 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 15:43:05,046 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:05,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-10 15:43:05,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-10 15:43:05,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-10 15:43:05,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2018-10-10 15:43:05,050 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 27 states. [2018-10-10 15:43:06,547 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-10 15:43:06,773 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-10-10 15:43:07,214 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2018-10-10 15:43:07,540 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-10-10 15:43:07,892 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-10-10 15:43:08,075 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2018-10-10 15:43:08,282 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2018-10-10 15:43:08,619 WARN L178 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2018-10-10 15:43:08,902 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2018-10-10 15:43:09,250 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2018-10-10 15:43:09,414 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2018-10-10 15:43:09,554 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2018-10-10 15:43:09,693 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-10 15:43:09,910 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-10 15:43:10,083 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-10 15:43:10,305 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-10 15:43:10,824 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2018-10-10 15:43:10,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:10,873 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-10-10 15:43:10,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-10-10 15:43:10,874 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 94 [2018-10-10 15:43:10,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:10,877 INFO L225 Difference]: With dead ends: 137 [2018-10-10 15:43:10,877 INFO L226 Difference]: Without dead ends: 137 [2018-10-10 15:43:10,880 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=637, Invalid=2555, Unknown=0, NotChecked=0, Total=3192 [2018-10-10 15:43:10,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-10-10 15:43:10,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 124. [2018-10-10 15:43:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-10-10 15:43:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-10-10 15:43:10,892 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 94 [2018-10-10 15:43:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:10,893 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-10-10 15:43:10,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-10 15:43:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-10-10 15:43:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-10 15:43:10,897 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:10,898 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:10,898 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:10,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:10,899 INFO L82 PathProgramCache]: Analyzing trace with hash 2035601530, now seen corresponding path program 2 times [2018-10-10 15:43:10,900 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:43:12,959 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:12,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-10 15:43:12,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-10 15:43:12,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-10 15:43:12,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1178, Unknown=0, NotChecked=0, Total=1260 [2018-10-10 15:43:12,961 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 36 states. [2018-10-10 15:43:14,585 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-10 15:43:14,857 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-10 15:43:15,078 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2018-10-10 15:43:15,308 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-10 15:43:15,883 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2018-10-10 15:43:16,173 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-10 15:43:16,425 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-10 15:43:16,690 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2018-10-10 15:43:17,133 WARN L178 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-10 15:43:17,443 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2018-10-10 15:43:17,902 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2018-10-10 15:43:18,125 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2018-10-10 15:43:18,554 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2018-10-10 15:43:18,876 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-10 15:43:19,312 WARN L178 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2018-10-10 15:43:19,703 WARN L178 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2018-10-10 15:43:20,134 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2018-10-10 15:43:20,506 WARN L178 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2018-10-10 15:43:20,903 WARN L178 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 104 [2018-10-10 15:43:21,172 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2018-10-10 15:43:21,371 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2018-10-10 15:43:21,690 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2018-10-10 15:43:21,904 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-10 15:43:22,141 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2018-10-10 15:43:22,500 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2018-10-10 15:43:22,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:22,535 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-10-10 15:43:22,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-10-10 15:43:22,536 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 123 [2018-10-10 15:43:22,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:22,538 INFO L225 Difference]: With dead ends: 166 [2018-10-10 15:43:22,539 INFO L226 Difference]: Without dead ends: 166 [2018-10-10 15:43:22,541 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=788, Invalid=4324, Unknown=0, NotChecked=0, Total=5112 [2018-10-10 15:43:22,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-10-10 15:43:22,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 153. [2018-10-10 15:43:22,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-10-10 15:43:22,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2018-10-10 15:43:22,555 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 123 [2018-10-10 15:43:22,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:22,556 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2018-10-10 15:43:22,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-10 15:43:22,556 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2018-10-10 15:43:22,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-10 15:43:22,559 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:22,559 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:22,559 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:22,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:22,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1264940369, now seen corresponding path program 3 times [2018-10-10 15:43:22,561 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-10 15:43:23,800 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:23,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-10 15:43:23,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-10 15:43:23,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-10 15:43:23,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=920, Unknown=0, NotChecked=0, Total=992 [2018-10-10 15:43:23,802 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 32 states. [2018-10-10 15:43:26,141 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2018-10-10 15:43:26,359 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2018-10-10 15:43:26,881 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2018-10-10 15:43:27,145 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2018-10-10 15:43:27,410 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2018-10-10 15:43:27,603 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2018-10-10 15:43:27,743 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-10-10 15:43:28,132 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2018-10-10 15:43:28,382 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2018-10-10 15:43:28,715 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2018-10-10 15:43:29,004 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2018-10-10 15:43:29,317 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2018-10-10 15:43:29,608 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2018-10-10 15:43:29,796 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-10-10 15:43:29,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:29,802 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2018-10-10 15:43:29,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-10-10 15:43:29,803 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 152 [2018-10-10 15:43:29,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:29,804 INFO L225 Difference]: With dead ends: 151 [2018-10-10 15:43:29,804 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:43:29,806 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=897, Invalid=3659, Unknown=0, NotChecked=0, Total=4556 [2018-10-10 15:43:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:43:29,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:43:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:43:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:43:29,808 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2018-10-10 15:43:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:29,808 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:43:29,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-10 15:43:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:43:29,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:43:29,813 INFO L202 PluginConnector]: Adding new model openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:43:29 BoogieIcfgContainer [2018-10-10 15:43:29,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:43:29,814 INFO L168 Benchmark]: Toolchain (without parser) took 29640.24 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 376.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 186.0 MB). Peak memory consumption was 562.4 MB. Max. memory is 7.1 GB. [2018-10-10 15:43:29,815 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:43:29,816 INFO L168 Benchmark]: Boogie Preprocessor took 52.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:43:29,816 INFO L168 Benchmark]: RCFGBuilder took 648.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 15:43:29,817 INFO L168 Benchmark]: TraceAbstraction took 28935.50 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 376.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 154.3 MB). Peak memory consumption was 530.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:43:29,821 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 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 648.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 28935.50 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 376.4 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 154.3 MB). Peak memory consumption was 530.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 165]: 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, 92 locations, 1 error locations. SAFE Result, 28.8s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 22.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 249 SDtfs, 3713 SDslu, 3062 SDs, 0 SdLazy, 3465 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1684 ImplicationChecksByTransitivity, 22.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred 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, 0.1s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 430 ConstructedInterpolants, 0 QuantifiedInterpolants, 744065 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 26/146 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_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-43-29-832.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_10.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-43-29-832.csv Received shutdown request...