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/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:33:46,941 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:33:46,943 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:33:46,955 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:33:46,956 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:33:46,957 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:33:46,958 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:33:46,967 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:33:46,969 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:33:46,971 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:33:46,972 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-14 16:33:47,001 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 16:33:47,019 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:33:47,019 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:33:47,022 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:33:47,023 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:33:47,024 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:33:47,024 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:33:47,025 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:33:47,025 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:33:47,025 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:33:47,025 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:33:47,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:33:47,026 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:33:47,026 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:33:47,027 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:33:47,027 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:33:47,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:33:47,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:33:47,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:33:47,118 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:33:47,119 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:33:47,120 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl [2018-10-14 16:33:47,120 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl' [2018-10-14 16:33:47,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:33:47,220 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:33:47,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:33:47,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:33:47,221 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:33:47,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:47" (1/1) ... [2018-10-14 16:33:47,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:47" (1/1) ... [2018-10-14 16:33:47,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:47" (1/1) ... [2018-10-14 16:33:47,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:47" (1/1) ... [2018-10-14 16:33:47,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:47" (1/1) ... [2018-10-14 16:33:47,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:47" (1/1) ... [2018-10-14 16:33:47,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:47" (1/1) ... [2018-10-14 16:33:47,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:33:47,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:33:47,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:33:47,325 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:33:47,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:47" (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 16:33:47,390 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:33:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:33:47,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:33:48,399 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:33:48,400 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:33:48 BoogieIcfgContainer [2018-10-14 16:33:48,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:33:48,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:33:48,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:33:48,405 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:33:48,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:47" (1/2) ... [2018-10-14 16:33:48,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a73522 and model type alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:33:48, skipping insertion in model container [2018-10-14 16:33:48,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:33:48" (2/2) ... [2018-10-14 16:33:48,408 INFO L112 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl [2018-10-14 16:33:48,418 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:33:48,427 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:33:48,445 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:33:48,475 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:33:48,476 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:33:48,476 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:33:48,476 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:33:48,476 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:33:48,477 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:33:48,477 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:33:48,477 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:33:48,477 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:33:48,500 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2018-10-14 16:33:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-14 16:33:48,511 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:48,512 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] [2018-10-14 16:33:48,514 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:48,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:48,524 INFO L82 PathProgramCache]: Analyzing trace with hash 179709574, now seen corresponding path program 1 times [2018-10-14 16:33:48,592 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:49,303 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 16:33:49,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:33:49,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-14 16:33:49,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 16:33:49,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 16:33:49,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-14 16:33:49,333 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 9 states. [2018-10-14 16:33:50,060 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-14 16:33:50,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:50,947 INFO L93 Difference]: Finished difference Result 292 states and 297 transitions. [2018-10-14 16:33:50,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-14 16:33:50,950 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-10-14 16:33:50,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:50,967 INFO L225 Difference]: With dead ends: 292 [2018-10-14 16:33:50,967 INFO L226 Difference]: Without dead ends: 292 [2018-10-14 16:33:50,969 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-10-14 16:33:50,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-10-14 16:33:51,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 187. [2018-10-14 16:33:51,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-10-14 16:33:51,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 191 transitions. [2018-10-14 16:33:51,029 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 191 transitions. Word has length 48 [2018-10-14 16:33:51,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:51,030 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 191 transitions. [2018-10-14 16:33:51,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 16:33:51,031 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 191 transitions. [2018-10-14 16:33:51,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-14 16:33:51,035 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:51,035 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:33:51,035 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:51,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:51,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1229667807, now seen corresponding path program 1 times [2018-10-14 16:33:51,037 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:51,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:33:51,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-14 16:33:51,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-14 16:33:51,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-14 16:33:51,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-14 16:33:51,274 INFO L87 Difference]: Start difference. First operand 187 states and 191 transitions. Second operand 11 states. [2018-10-14 16:33:52,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:52,340 INFO L93 Difference]: Finished difference Result 358 states and 363 transitions. [2018-10-14 16:33:52,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-14 16:33:52,341 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2018-10-14 16:33:52,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:52,344 INFO L225 Difference]: With dead ends: 358 [2018-10-14 16:33:52,344 INFO L226 Difference]: Without dead ends: 347 [2018-10-14 16:33:52,346 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2018-10-14 16:33:52,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2018-10-14 16:33:52,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 210. [2018-10-14 16:33:52,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-10-14 16:33:52,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 215 transitions. [2018-10-14 16:33:52,380 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 215 transitions. Word has length 75 [2018-10-14 16:33:52,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:52,382 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 215 transitions. [2018-10-14 16:33:52,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-14 16:33:52,383 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 215 transitions. [2018-10-14 16:33:52,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-14 16:33:52,390 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:52,390 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:33:52,390 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:52,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:52,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1321732550, now seen corresponding path program 1 times [2018-10-14 16:33:52,395 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:52,767 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:33:52,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-14 16:33:52,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-14 16:33:52,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-14 16:33:52,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-14 16:33:52,769 INFO L87 Difference]: Start difference. First operand 210 states and 215 transitions. Second operand 11 states. [2018-10-14 16:33:54,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:54,131 INFO L93 Difference]: Finished difference Result 488 states and 495 transitions. [2018-10-14 16:33:54,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-14 16:33:54,133 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2018-10-14 16:33:54,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:54,136 INFO L225 Difference]: With dead ends: 488 [2018-10-14 16:33:54,137 INFO L226 Difference]: Without dead ends: 483 [2018-10-14 16:33:54,138 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2018-10-14 16:33:54,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2018-10-14 16:33:54,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 219. [2018-10-14 16:33:54,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-10-14 16:33:54,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 224 transitions. [2018-10-14 16:33:54,151 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 224 transitions. Word has length 91 [2018-10-14 16:33:54,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:54,152 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 224 transitions. [2018-10-14 16:33:54,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-14 16:33:54,152 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 224 transitions. [2018-10-14 16:33:54,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-14 16:33:54,155 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:54,155 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:33:54,156 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:54,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:54,156 INFO L82 PathProgramCache]: Analyzing trace with hash -364173713, now seen corresponding path program 1 times [2018-10-14 16:33:54,157 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-14 16:33:54,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:33:54,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-14 16:33:54,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 16:33:54,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 16:33:54,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-14 16:33:54,345 INFO L87 Difference]: Start difference. First operand 219 states and 224 transitions. Second operand 9 states. [2018-10-14 16:33:54,631 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2018-10-14 16:33:54,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:54,948 INFO L93 Difference]: Finished difference Result 292 states and 295 transitions. [2018-10-14 16:33:54,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-14 16:33:54,949 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2018-10-14 16:33:54,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:54,952 INFO L225 Difference]: With dead ends: 292 [2018-10-14 16:33:54,952 INFO L226 Difference]: Without dead ends: 260 [2018-10-14 16:33:54,953 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-14 16:33:54,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-10-14 16:33:54,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 219. [2018-10-14 16:33:54,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-10-14 16:33:54,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 223 transitions. [2018-10-14 16:33:54,982 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 223 transitions. Word has length 107 [2018-10-14 16:33:54,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:54,982 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 223 transitions. [2018-10-14 16:33:54,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 16:33:54,983 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 223 transitions. [2018-10-14 16:33:54,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-14 16:33:54,985 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:54,986 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-14 16:33:54,986 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:54,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:54,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1685791226, now seen corresponding path program 2 times [2018-10-14 16:33:54,988 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:55,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:33:55,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-14 16:33:55,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-14 16:33:55,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-14 16:33:55,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:33:55,094 INFO L87 Difference]: Start difference. First operand 219 states and 223 transitions. Second operand 3 states. [2018-10-14 16:33:55,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:55,107 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2018-10-14 16:33:55,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-14 16:33:55,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2018-10-14 16:33:55,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:55,109 INFO L225 Difference]: With dead ends: 155 [2018-10-14 16:33:55,109 INFO L226 Difference]: Without dead ends: 151 [2018-10-14 16:33:55,110 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:33:55,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-10-14 16:33:55,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-10-14 16:33:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-10-14 16:33:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2018-10-14 16:33:55,116 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 134 [2018-10-14 16:33:55,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:55,117 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2018-10-14 16:33:55,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-14 16:33:55,117 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2018-10-14 16:33:55,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-14 16:33:55,119 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:55,119 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:33:55,120 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:55,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:55,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1262941755, now seen corresponding path program 1 times [2018-10-14 16:33:55,121 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:56,774 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:33:56,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-14 16:33:56,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-14 16:33:56,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-14 16:33:56,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=747, Unknown=0, NotChecked=0, Total=812 [2018-10-14 16:33:56,776 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand 29 states. [2018-10-14 16:33:58,567 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2018-10-14 16:33:58,855 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2018-10-14 16:33:59,198 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-14 16:33:59,498 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2018-10-14 16:33:59,820 WARN L179 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2018-10-14 16:34:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:34:01,980 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2018-10-14 16:34:01,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-10-14 16:34:01,981 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 150 [2018-10-14 16:34:01,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:34:01,983 INFO L225 Difference]: With dead ends: 203 [2018-10-14 16:34:01,983 INFO L226 Difference]: Without dead ends: 203 [2018-10-14 16:34:01,985 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=540, Invalid=3120, Unknown=0, NotChecked=0, Total=3660 [2018-10-14 16:34:01,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-10-14 16:34:01,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 178. [2018-10-14 16:34:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-10-14 16:34:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2018-10-14 16:34:01,989 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 150 [2018-10-14 16:34:01,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:34:01,990 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2018-10-14 16:34:01,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-14 16:34:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2018-10-14 16:34:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-14 16:34:01,992 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:34:01,992 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-14 16:34:01,993 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:34:01,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:34:01,993 INFO L82 PathProgramCache]: Analyzing trace with hash 2004567306, now seen corresponding path program 2 times [2018-10-14 16:34:01,994 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:34:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:34:02,698 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:34:02,698 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:34:02,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-10-14 16:34:02,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-10-14 16:34:02,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-10-14 16:34:02,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2018-10-14 16:34:02,699 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand 31 states. [2018-10-14 16:34:04,718 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2018-10-14 16:34:05,215 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2018-10-14 16:34:06,393 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2018-10-14 16:34:06,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:34:06,846 INFO L93 Difference]: Finished difference Result 168 states and 167 transitions. [2018-10-14 16:34:06,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-10-14 16:34:06,847 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 177 [2018-10-14 16:34:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:34:06,848 INFO L225 Difference]: With dead ends: 168 [2018-10-14 16:34:06,848 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:34:06,850 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=733, Invalid=3689, Unknown=0, NotChecked=0, Total=4422 [2018-10-14 16:34:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:34:06,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:34:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:34:06,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:34:06,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2018-10-14 16:34:06,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:34:06,851 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:34:06,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-10-14 16:34:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:34:06,851 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:34:06,856 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:34:06 BoogieIcfgContainer [2018-10-14 16:34:06,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:34:06,858 INFO L168 Benchmark]: Toolchain (without parser) took 19638.82 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 255.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -33.8 MB). Peak memory consumption was 221.5 MB. Max. memory is 7.1 GB. [2018-10-14 16:34:06,859 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 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. [2018-10-14 16:34:06,860 INFO L168 Benchmark]: Boogie Preprocessor took 102.75 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. [2018-10-14 16:34:06,860 INFO L168 Benchmark]: RCFGBuilder took 1076.27 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-14 16:34:06,861 INFO L168 Benchmark]: TraceAbstraction took 18454.95 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 255.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -76.1 MB). Peak memory consumption was 179.2 MB. Max. memory is 7.1 GB. [2018-10-14 16:34:06,865 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 0.27 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 102.75 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 1076.27 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18454.95 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 255.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -76.1 MB). Peak memory consumption was 179.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 242]: 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, 139 locations, 1 error locations. SAFE Result, 18.3s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 14.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 840 SDtfs, 5682 SDslu, 5626 SDs, 0 SdLazy, 4188 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 572 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 782 NumberOfCodeBlocks, 782 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 775 ConstructedInterpolants, 0 QuantifiedInterpolants, 925594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 82/122 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/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-34-06-876.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-34-06-876.csv Received shutdown request...