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/sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:52:08,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:52:08,951 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:52:08,964 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:52:08,964 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:52:08,965 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:52:08,967 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:52:08,968 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:52:08,970 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:52:08,971 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:52:08,972 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:52:08,972 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:52:08,973 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:52:08,974 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:52:08,975 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:52:08,976 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:52:08,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:52:08,978 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:52:08,980 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:52:08,982 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:52:08,983 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:52:08,984 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:52:08,986 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-14 16:52:08,995 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:52:09,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:52:09,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:52:09,005 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:52:09,005 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:52:09,005 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:52:09,005 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:52:09,006 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:52:09,006 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:52:09,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:52:09,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:52:09,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:52:09,007 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:52:09,007 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:52:09,008 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:52:09,008 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:52:09,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:52:09,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:52:09,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:52:09,066 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:52:09,067 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:52:09,068 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl [2018-10-14 16:52:09,068 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl' [2018-10-14 16:52:09,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:52:09,151 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:52:09,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:52:09,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:52:09,152 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:52:09,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:09" (1/1) ... [2018-10-14 16:52:09,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:09" (1/1) ... [2018-10-14 16:52:09,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:09" (1/1) ... [2018-10-14 16:52:09,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:09" (1/1) ... [2018-10-14 16:52:09,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:09" (1/1) ... [2018-10-14 16:52:09,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:09" (1/1) ... [2018-10-14 16:52:09,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:09" (1/1) ... [2018-10-14 16:52:09,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:52:09,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:52:09,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:52:09,245 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:52:09,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:09" (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 [2018-10-14 16:52:09,320 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:52:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:52:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:52:10,432 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:52:10,433 INFO L202 PluginConnector]: Adding new model sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:52:10 BoogieIcfgContainer [2018-10-14 16:52:10,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:52:10,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:52:10,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:52:10,438 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:52:10,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:09" (1/2) ... [2018-10-14 16:52:10,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c578fa8 and model type sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:52:10, skipping insertion in model container [2018-10-14 16:52:10,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:52:10" (2/2) ... [2018-10-14 16:52:10,441 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl [2018-10-14 16:52:10,451 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:52:10,460 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:52:10,477 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:52:10,506 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:52:10,507 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:52:10,507 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:52:10,507 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:52:10,507 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:52:10,507 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:52:10,508 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:52:10,508 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:52:10,508 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:52:10,532 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2018-10-14 16:52:10,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-10-14 16:52:10,550 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:52:10,551 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:52:10,553 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:52:10,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:52:10,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1765714466, now seen corresponding path program 1 times [2018-10-14 16:52:10,613 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:52:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:52:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:52:11,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:52:11,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-14 16:52:11,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-14 16:52:11,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-14 16:52:11,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-14 16:52:11,227 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 6 states. [2018-10-14 16:52:11,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:52:11,602 INFO L93 Difference]: Finished difference Result 208 states and 208 transitions. [2018-10-14 16:52:11,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-14 16:52:11,604 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2018-10-14 16:52:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:52:11,622 INFO L225 Difference]: With dead ends: 208 [2018-10-14 16:52:11,622 INFO L226 Difference]: Without dead ends: 208 [2018-10-14 16:52:11,629 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-14 16:52:11,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-10-14 16:52:11,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2018-10-14 16:52:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-10-14 16:52:11,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 208 transitions. [2018-10-14 16:52:11,693 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 208 transitions. Word has length 168 [2018-10-14 16:52:11,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:52:11,695 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 208 transitions. [2018-10-14 16:52:11,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-14 16:52:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 208 transitions. [2018-10-14 16:52:11,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-10-14 16:52:11,700 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:52:11,700 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:52:11,701 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:52:11,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:52:11,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1407844075, now seen corresponding path program 1 times [2018-10-14 16:52:11,702 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:52:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:52:12,959 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-10-14 16:52:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:52:14,943 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:52:14,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-10-14 16:52:14,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-10-14 16:52:14,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-10-14 16:52:14,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1644, Unknown=0, NotChecked=0, Total=1806 [2018-10-14 16:52:14,947 INFO L87 Difference]: Start difference. First operand 208 states and 208 transitions. Second operand 43 states. [2018-10-14 16:52:16,509 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2018-10-14 16:52:16,795 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2018-10-14 16:52:16,998 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2018-10-14 16:52:17,188 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2018-10-14 16:52:17,666 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2018-10-14 16:52:17,960 WARN L179 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2018-10-14 16:52:20,259 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-10-14 16:52:23,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:52:23,026 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2018-10-14 16:52:23,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-10-14 16:52:23,027 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 207 [2018-10-14 16:52:23,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:52:23,030 INFO L225 Difference]: With dead ends: 247 [2018-10-14 16:52:23,031 INFO L226 Difference]: Without dead ends: 247 [2018-10-14 16:52:23,035 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1792 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1231, Invalid=7325, Unknown=0, NotChecked=0, Total=8556 [2018-10-14 16:52:23,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-10-14 16:52:23,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2018-10-14 16:52:23,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-10-14 16:52:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 247 transitions. [2018-10-14 16:52:23,050 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 247 transitions. Word has length 207 [2018-10-14 16:52:23,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:52:23,051 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 247 transitions. [2018-10-14 16:52:23,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-10-14 16:52:23,051 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 247 transitions. [2018-10-14 16:52:23,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-10-14 16:52:23,056 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:52:23,056 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:52:23,057 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:52:23,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:52:23,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1214925314, now seen corresponding path program 2 times [2018-10-14 16:52:23,058 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:52:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:52:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:52:27,447 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:52:27,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-10-14 16:52:27,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-10-14 16:52:27,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-10-14 16:52:27,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=2758, Unknown=0, NotChecked=0, Total=2970 [2018-10-14 16:52:27,450 INFO L87 Difference]: Start difference. First operand 247 states and 247 transitions. Second operand 55 states. [2018-10-14 16:52:29,281 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-10-14 16:52:29,641 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-10-14 16:52:29,803 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-10-14 16:52:30,018 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-14 16:52:30,215 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2018-10-14 16:52:30,513 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-10-14 16:52:30,806 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-14 16:52:31,962 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2018-10-14 16:52:32,221 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2018-10-14 16:52:32,586 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2018-10-14 16:52:32,847 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-10-14 16:52:33,096 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2018-10-14 16:52:33,395 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2018-10-14 16:52:33,771 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-10-14 16:52:34,061 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2018-10-14 16:52:34,367 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 89 [2018-10-14 16:52:34,539 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2018-10-14 16:52:35,053 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2018-10-14 16:52:35,248 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2018-10-14 16:52:36,145 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2018-10-14 16:52:39,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:52:39,733 INFO L93 Difference]: Finished difference Result 286 states and 286 transitions. [2018-10-14 16:52:39,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-10-14 16:52:39,733 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 246 [2018-10-14 16:52:39,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:52:39,738 INFO L225 Difference]: With dead ends: 286 [2018-10-14 16:52:39,738 INFO L226 Difference]: Without dead ends: 286 [2018-10-14 16:52:39,744 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3960 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=1599, Invalid=14151, Unknown=0, NotChecked=0, Total=15750 [2018-10-14 16:52:39,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-10-14 16:52:39,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2018-10-14 16:52:39,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2018-10-14 16:52:39,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2018-10-14 16:52:39,760 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 246 [2018-10-14 16:52:39,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:52:39,761 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2018-10-14 16:52:39,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-10-14 16:52:39,761 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2018-10-14 16:52:39,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-10-14 16:52:39,766 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:52:39,766 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:52:39,767 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:52:39,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:52:39,767 INFO L82 PathProgramCache]: Analyzing trace with hash 584301813, now seen corresponding path program 3 times [2018-10-14 16:52:39,768 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:52:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:52:44,315 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:52:44,315 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:52:44,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-10-14 16:52:44,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-10-14 16:52:44,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-10-14 16:52:44,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=4444, Unknown=0, NotChecked=0, Total=4692 [2018-10-14 16:52:44,318 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand 69 states. [2018-10-14 16:52:45,245 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-14 16:52:47,133 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2018-10-14 16:52:47,399 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2018-10-14 16:52:47,641 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2018-10-14 16:52:47,905 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-10-14 16:52:48,124 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2018-10-14 16:52:48,510 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2018-10-14 16:52:48,762 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-10-14 16:52:49,079 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2018-10-14 16:52:50,641 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2018-10-14 16:52:50,950 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2018-10-14 16:52:51,198 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2018-10-14 16:52:51,471 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2018-10-14 16:52:51,836 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2018-10-14 16:52:52,164 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 82 [2018-10-14 16:52:52,516 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 84 [2018-10-14 16:52:52,835 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2018-10-14 16:52:53,400 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-10-14 16:52:53,617 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-10-14 16:52:54,101 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2018-10-14 16:52:55,289 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2018-10-14 16:52:55,506 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-10-14 16:52:55,838 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2018-10-14 16:52:56,286 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2018-10-14 16:52:57,682 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2018-10-14 16:52:59,491 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-10-14 16:52:59,726 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-10-14 16:53:02,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:02,541 INFO L93 Difference]: Finished difference Result 325 states and 325 transitions. [2018-10-14 16:53:02,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-10-14 16:53:02,547 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 285 [2018-10-14 16:53:02,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:02,549 INFO L225 Difference]: With dead ends: 325 [2018-10-14 16:53:02,550 INFO L226 Difference]: Without dead ends: 325 [2018-10-14 16:53:02,557 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6544 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=2083, Invalid=24323, Unknown=0, NotChecked=0, Total=26406 [2018-10-14 16:53:02,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2018-10-14 16:53:02,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2018-10-14 16:53:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-10-14 16:53:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 325 transitions. [2018-10-14 16:53:02,572 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 325 transitions. Word has length 285 [2018-10-14 16:53:02,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:02,573 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 325 transitions. [2018-10-14 16:53:02,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-10-14 16:53:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 325 transitions. [2018-10-14 16:53:02,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-10-14 16:53:02,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:02,578 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:02,578 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:02,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:02,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1868455454, now seen corresponding path program 4 times [2018-10-14 16:53:02,580 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:06,498 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 200 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:06,499 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:06,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-10-14 16:53:06,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-10-14 16:53:06,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-10-14 16:53:06,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=3984, Unknown=0, NotChecked=0, Total=4160 [2018-10-14 16:53:06,501 INFO L87 Difference]: Start difference. First operand 325 states and 325 transitions. Second operand 65 states. [2018-10-14 16:53:09,003 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-10-14 16:53:09,222 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2018-10-14 16:53:09,386 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-10-14 16:53:09,633 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-10-14 16:53:09,850 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2018-10-14 16:53:10,234 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2018-10-14 16:53:10,435 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-10-14 16:53:12,166 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2018-10-14 16:53:12,691 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2018-10-14 16:53:12,990 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2018-10-14 16:53:13,519 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2018-10-14 16:53:13,866 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2018-10-14 16:53:14,074 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2018-10-14 16:53:14,617 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-10-14 16:53:14,832 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-10-14 16:53:16,099 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2018-10-14 16:53:16,309 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2018-10-14 16:53:16,715 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-10-14 16:53:16,928 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2018-10-14 16:53:17,775 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2018-10-14 16:53:18,145 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2018-10-14 16:53:18,411 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2018-10-14 16:53:22,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:22,269 INFO L93 Difference]: Finished difference Result 284 states and 283 transitions. [2018-10-14 16:53:22,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-10-14 16:53:22,270 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 324 [2018-10-14 16:53:22,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:22,271 INFO L225 Difference]: With dead ends: 284 [2018-10-14 16:53:22,271 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:53:22,273 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5279 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=1439, Invalid=19731, Unknown=0, NotChecked=0, Total=21170 [2018-10-14 16:53:22,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:53:22,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:53:22,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:53:22,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:53:22,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 324 [2018-10-14 16:53:22,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:22,275 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:53:22,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-10-14 16:53:22,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:53:22,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:53:22,279 INFO L202 PluginConnector]: Adding new model sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:53:22 BoogieIcfgContainer [2018-10-14 16:53:22,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:53:22,280 INFO L168 Benchmark]: Toolchain (without parser) took 73130.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 652.2 MB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -619.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:22,281 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-10-14 16:53:22,282 INFO L168 Benchmark]: Boogie Preprocessor took 92.47 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. [2018-10-14 16:53:22,282 INFO L168 Benchmark]: RCFGBuilder took 1188.25 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:22,283 INFO L168 Benchmark]: TraceAbstraction took 71845.04 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 652.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -672.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:53:22,286 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 0.19 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. * Boogie Preprocessor took 92.47 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 1188.25 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 71845.04 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 652.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -672.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 277]: 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, 177 locations, 1 error locations. SAFE Result, 71.7s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 54.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 538 SDtfs, 7982 SDslu, 10219 SDs, 0 SdLazy, 19269 SolverSat, 722 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 566 GetRequests, 29 SyntacticMatches, 9 SemanticMatches, 528 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17578 ImplicationChecksByTransitivity, 48.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred in iteration=4, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 1230 NumberOfCodeBlocks, 1230 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1225 ConstructedInterpolants, 0 QuantifiedInterpolants, 5192387 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 200/720 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/sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-53-22-298.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sll-buckets_true-unreach-call_true-valid-memsafety.i_45.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-53-22-298.csv Received shutdown request...