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_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:10:22,791 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:10:22,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:10:22,805 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:10:22,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:10:22,806 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:10:22,807 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:10:22,809 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:10:22,811 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:10:22,812 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:10:22,813 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 21:10:22,813 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 21:10:22,814 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 21:10:22,815 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 21:10:22,816 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 21:10:22,817 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 21:10:22,818 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 21:10:22,820 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 21:10:22,822 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 21:10:22,823 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 21:10:22,824 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 21:10:22,826 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 21:10:22,828 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-12 21:10:22,835 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-12 21:10:22,835 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-12 21:10:22,836 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-12 21:10:22,837 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-12 21:10:22,837 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 21:10:22,856 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:10:22,856 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:10:22,857 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:10:22,857 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:10:22,861 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:10:22,861 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:10:22,862 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:10:22,862 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:10:22,863 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:10:22,863 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:10:22,863 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:10:22,864 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:10:22,864 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:10:22,865 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:10:22,865 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:10:22,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:10:22,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:10:22,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:10:22,937 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:10:22,937 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:10:22,938 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-12 21:10:22,939 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl' [2018-10-12 21:10:23,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:10:23,035 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:10:23,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:10:23,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:10:23,036 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:10:23,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:23" (1/1) ... [2018-10-12 21:10:23,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:23" (1/1) ... [2018-10-12 21:10:23,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:23" (1/1) ... [2018-10-12 21:10:23,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:23" (1/1) ... [2018-10-12 21:10:23,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:23" (1/1) ... [2018-10-12 21:10:23,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:23" (1/1) ... [2018-10-12 21:10:23,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:23" (1/1) ... [2018-10-12 21:10:23,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:10:23,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:10:23,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:10:23,117 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:10:23,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:23" (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 21:10:23,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:10:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:10:23,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:10:23,867 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:10:23,868 INFO L202 PluginConnector]: Adding new model openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:10:23 BoogieIcfgContainer [2018-10-12 21:10:23,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:10:23,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:10:23,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:10:23,873 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:10:23,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:10:23" (1/2) ... [2018-10-12 21:10:23,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2358deb3 and model type openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:10:23, skipping insertion in model container [2018-10-12 21:10:23,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:10:23" (2/2) ... [2018-10-12 21:10:23,876 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-12 21:10:23,886 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:10:23,893 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:10:23,908 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:10:23,937 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:10:23,938 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:10:23,938 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:10:23,938 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:10:23,938 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:10:23,939 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:10:23,939 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:10:23,939 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:10:23,939 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:10:23,959 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2018-10-12 21:10:23,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-12 21:10:23,969 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:23,971 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] [2018-10-12 21:10:23,972 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:23,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash -750967619, now seen corresponding path program 1 times [2018-10-12 21:10:24,035 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:24,699 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 21:10:24,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:10:24,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-12 21:10:24,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-12 21:10:24,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-12 21:10:24,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-10-12 21:10:24,727 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 13 states. [2018-10-12 21:10:25,602 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-12 21:10:26,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:26,317 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-10-12 21:10:26,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-12 21:10:26,321 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2018-10-12 21:10:26,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:26,346 INFO L225 Difference]: With dead ends: 108 [2018-10-12 21:10:26,346 INFO L226 Difference]: Without dead ends: 108 [2018-10-12 21:10:26,352 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2018-10-12 21:10:26,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-10-12 21:10:26,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 96. [2018-10-12 21:10:26,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-10-12 21:10:26,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-10-12 21:10:26,414 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 66 [2018-10-12 21:10:26,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:26,415 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-10-12 21:10:26,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-12 21:10:26,416 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-10-12 21:10:26,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-12 21:10:26,423 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:26,423 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:10:26,424 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:26,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:26,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1020336687, now seen corresponding path program 1 times [2018-10-12 21:10:26,425 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:27,263 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2018-10-12 21:10:28,236 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:10:28,237 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:28,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-12 21:10:28,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-12 21:10:28,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-12 21:10:28,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=750, Unknown=0, NotChecked=0, Total=812 [2018-10-12 21:10:28,241 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 29 states. [2018-10-12 21:10:29,534 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-12 21:10:29,733 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-10-12 21:10:30,203 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-10-12 21:10:30,630 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-10-12 21:10:30,866 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-10-12 21:10:31,091 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2018-10-12 21:10:31,328 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-10-12 21:10:31,563 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2018-10-12 21:10:31,873 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-10-12 21:10:32,220 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2018-10-12 21:10:32,514 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2018-10-12 21:10:32,823 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2018-10-12 21:10:33,163 WARN L178 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-10-12 21:10:33,360 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2018-10-12 21:10:33,826 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-12 21:10:34,026 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-12 21:10:34,200 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-12 21:10:34,401 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-10-12 21:10:34,664 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-12 21:10:34,902 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-12 21:10:35,188 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2018-10-12 21:10:35,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:35,236 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-10-12 21:10:35,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-10-12 21:10:35,245 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 95 [2018-10-12 21:10:35,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:35,247 INFO L225 Difference]: With dead ends: 137 [2018-10-12 21:10:35,247 INFO L226 Difference]: Without dead ends: 137 [2018-10-12 21:10:35,251 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=780, Invalid=3126, Unknown=0, NotChecked=0, Total=3906 [2018-10-12 21:10:35,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-10-12 21:10:35,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2018-10-12 21:10:35,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-10-12 21:10:35,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2018-10-12 21:10:35,272 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 95 [2018-10-12 21:10:35,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:35,275 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2018-10-12 21:10:35,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-12 21:10:35,276 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2018-10-12 21:10:35,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-12 21:10:35,282 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:35,282 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, 1] [2018-10-12 21:10:35,285 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:35,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:35,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1925074435, now seen corresponding path program 2 times [2018-10-12 21:10:35,287 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:36,601 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-12 21:10:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:10:37,851 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:37,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-12 21:10:37,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-12 21:10:37,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-12 21:10:37,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1319, Unknown=0, NotChecked=0, Total=1406 [2018-10-12 21:10:37,854 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 38 states. [2018-10-12 21:10:39,895 WARN L178 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2018-10-12 21:10:40,233 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-12 21:10:40,564 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2018-10-12 21:10:40,763 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-12 21:10:41,365 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-10-12 21:10:41,631 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-12 21:10:41,896 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2018-10-12 21:10:42,251 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2018-10-12 21:10:42,593 WARN L178 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2018-10-12 21:10:42,974 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2018-10-12 21:10:43,466 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2018-10-12 21:10:43,742 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2018-10-12 21:10:44,253 WARN L178 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2018-10-12 21:10:44,628 WARN L178 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2018-10-12 21:10:45,031 WARN L178 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 108 [2018-10-12 21:10:45,508 WARN L178 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2018-10-12 21:10:45,985 WARN L178 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2018-10-12 21:10:46,432 WARN L178 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2018-10-12 21:10:46,874 WARN L178 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2018-10-12 21:10:47,283 WARN L178 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2018-10-12 21:10:47,610 WARN L178 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2018-10-12 21:10:47,905 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2018-10-12 21:10:48,340 WARN L178 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2018-10-12 21:10:48,678 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-12 21:10:48,919 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2018-10-12 21:10:49,351 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2018-10-12 21:10:49,598 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2018-10-12 21:10:49,875 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-12 21:10:50,477 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2018-10-12 21:10:50,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:10:50,516 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-10-12 21:10:50,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-10-12 21:10:50,516 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 124 [2018-10-12 21:10:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:10:50,519 INFO L225 Difference]: With dead ends: 166 [2018-10-12 21:10:50,519 INFO L226 Difference]: Without dead ends: 166 [2018-10-12 21:10:50,522 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=966, Invalid=5196, Unknown=0, NotChecked=0, Total=6162 [2018-10-12 21:10:50,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-10-12 21:10:50,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 154. [2018-10-12 21:10:50,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-10-12 21:10:50,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-10-12 21:10:50,535 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 124 [2018-10-12 21:10:50,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:10:50,536 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-10-12 21:10:50,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-12 21:10:50,536 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-10-12 21:10:50,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-12 21:10:50,538 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:10:50,539 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, 1] [2018-10-12 21:10:50,539 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:10:50,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:10:50,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1224829713, now seen corresponding path program 3 times [2018-10-12 21:10:50,540 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:10:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:10:52,571 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 83 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-12 21:10:52,572 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:10:52,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-10-12 21:10:52,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-10-12 21:10:52,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-10-12 21:10:52,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=2048, Unknown=0, NotChecked=0, Total=2162 [2018-10-12 21:10:52,574 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 47 states. [2018-10-12 21:10:56,062 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2018-10-12 21:10:56,258 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2018-10-12 21:10:57,620 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2018-10-12 21:10:57,856 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2018-10-12 21:10:58,143 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 102 [2018-10-12 21:10:58,838 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2018-10-12 21:10:59,175 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 102 [2018-10-12 21:10:59,542 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2018-10-12 21:10:59,898 WARN L178 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 110 [2018-10-12 21:11:00,265 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 114 [2018-10-12 21:11:00,592 WARN L178 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 110 [2018-10-12 21:11:00,892 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2018-10-12 21:11:01,211 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2018-10-12 21:11:01,583 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2018-10-12 21:11:01,955 WARN L178 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2018-10-12 21:11:02,250 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2018-10-12 21:11:02,567 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2018-10-12 21:11:02,813 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2018-10-12 21:11:03,088 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2018-10-12 21:11:03,473 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2018-10-12 21:11:03,893 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2018-10-12 21:11:04,148 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2018-10-12 21:11:04,593 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2018-10-12 21:11:05,016 WARN L178 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2018-10-12 21:11:05,462 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 108 [2018-10-12 21:11:05,842 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2018-10-12 21:11:06,808 WARN L178 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 116 [2018-10-12 21:11:07,177 WARN L178 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 112 [2018-10-12 21:11:07,486 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2018-10-12 21:11:07,841 WARN L178 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 107 [2018-10-12 21:11:08,216 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 111 [2018-10-12 21:11:08,550 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 107 [2018-10-12 21:11:08,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:11:08,576 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-10-12 21:11:08,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-10-12 21:11:08,577 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 153 [2018-10-12 21:11:08,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:11:08,578 INFO L225 Difference]: With dead ends: 152 [2018-10-12 21:11:08,578 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:11:08,583 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2016 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=1964, Invalid=10026, Unknown=0, NotChecked=0, Total=11990 [2018-10-12 21:11:08,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:11:08,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:11:08,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:11:08,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:11:08,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2018-10-12 21:11:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:11:08,585 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:11:08,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-10-12 21:11:08,585 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:11:08,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:11:08,590 INFO L202 PluginConnector]: Adding new model openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:11:08 BoogieIcfgContainer [2018-10-12 21:11:08,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:11:08,591 INFO L168 Benchmark]: Toolchain (without parser) took 45557.20 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 404.8 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 409.3 MB). Peak memory consumption was 814.0 MB. Max. memory is 7.1 GB. [2018-10-12 21:11:08,592 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-10-12 21:11:08,593 INFO L168 Benchmark]: Boogie Preprocessor took 78.82 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. [2018-10-12 21:11:08,593 INFO L168 Benchmark]: RCFGBuilder took 752.25 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. [2018-10-12 21:11:08,594 INFO L168 Benchmark]: TraceAbstraction took 44720.90 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 404.8 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 377.5 MB). Peak memory consumption was 782.3 MB. Max. memory is 7.1 GB. [2018-10-12 21:11:08,598 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.82 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 752.25 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 44720.90 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 404.8 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 377.5 MB). Peak memory consumption was 782.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 166]: 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, 93 locations, 1 error locations. SAFE Result, 44.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 37.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 245 SDtfs, 3907 SDslu, 3682 SDs, 0 SdLazy, 5110 SolverSat, 189 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3368 ImplicationChecksByTransitivity, 35.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred 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, 6.6s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 816241 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 19/146 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_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-11-08-608.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-11-08-608.csv Received shutdown request...