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_48.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 20:54:33,046 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 20:54:33,049 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 20:54:33,067 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 20:54:33,068 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 20:54:33,069 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 20:54:33,070 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 20:54:33,072 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 20:54:33,073 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 20:54:33,074 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 20:54:33,075 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-12 20:54:33,105 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 20:54:33,118 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 20:54:33,118 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 20:54:33,123 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 20:54:33,123 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 20:54:33,123 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 20:54:33,123 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 20:54:33,124 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 20:54:33,124 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 20:54:33,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 20:54:33,125 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 20:54:33,125 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 20:54:33,125 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 20:54:33,125 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 20:54:33,126 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 20:54:33,126 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 20:54:33,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 20:54:33,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 20:54:33,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 20:54:33,191 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 20:54:33,191 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 20:54:33,192 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl [2018-10-12 20:54:33,192 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl' [2018-10-12 20:54:33,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 20:54:33,271 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 20:54:33,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 20:54:33,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 20:54:33,272 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 20:54:33,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:33" (1/1) ... [2018-10-12 20:54:33,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:33" (1/1) ... [2018-10-12 20:54:33,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:33" (1/1) ... [2018-10-12 20:54:33,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:33" (1/1) ... [2018-10-12 20:54:33,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:33" (1/1) ... [2018-10-12 20:54:33,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:33" (1/1) ... [2018-10-12 20:54:33,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:33" (1/1) ... [2018-10-12 20:54:33,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 20:54:33,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 20:54:33,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 20:54:33,364 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 20:54:33,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-12 20:54:33,448 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 20:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 20:54:33,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 20:54:34,346 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 20:54:34,347 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:54:34 BoogieIcfgContainer [2018-10-12 20:54:34,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 20:54:34,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 20:54:34,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 20:54:34,352 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 20:54:34,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 08:54:33" (1/2) ... [2018-10-12 20:54:34,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b16621 and model type alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:54:34, skipping insertion in model container [2018-10-12 20:54:34,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:54:34" (2/2) ... [2018-10-12 20:54:34,356 INFO L112 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl [2018-10-12 20:54:34,366 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 20:54:34,375 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 20:54:34,392 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 20:54:34,420 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 20:54:34,421 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 20:54:34,421 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 20:54:34,421 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 20:54:34,421 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 20:54:34,422 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 20:54:34,422 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 20:54:34,422 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 20:54:34,422 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 20:54:34,444 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2018-10-12 20:54:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-12 20:54:34,455 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:34,456 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] [2018-10-12 20:54:34,458 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:34,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:34,463 INFO L82 PathProgramCache]: Analyzing trace with hash -35024842, now seen corresponding path program 1 times [2018-10-12 20:54:34,517 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:34,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:54:34,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-12 20:54:34,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-12 20:54:34,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-12 20:54:34,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-12 20:54:34,999 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 9 states. [2018-10-12 20:54:36,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:36,818 INFO L93 Difference]: Finished difference Result 310 states and 317 transitions. [2018-10-12 20:54:36,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-12 20:54:36,819 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-10-12 20:54:36,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:36,836 INFO L225 Difference]: With dead ends: 310 [2018-10-12 20:54:36,836 INFO L226 Difference]: Without dead ends: 310 [2018-10-12 20:54:36,838 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-10-12 20:54:36,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-10-12 20:54:36,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 196. [2018-10-12 20:54:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-10-12 20:54:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 201 transitions. [2018-10-12 20:54:36,907 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 201 transitions. Word has length 48 [2018-10-12 20:54:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:36,908 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 201 transitions. [2018-10-12 20:54:36,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-12 20:54:36,908 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 201 transitions. [2018-10-12 20:54:36,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-12 20:54:36,912 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:36,913 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] [2018-10-12 20:54:36,914 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:36,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:36,915 INFO L82 PathProgramCache]: Analyzing trace with hash 844876254, now seen corresponding path program 1 times [2018-10-12 20:54:36,916 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:37,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:54:37,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-12 20:54:37,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-12 20:54:37,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-12 20:54:37,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-12 20:54:37,183 INFO L87 Difference]: Start difference. First operand 196 states and 201 transitions. Second operand 11 states. [2018-10-12 20:54:38,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:38,349 INFO L93 Difference]: Finished difference Result 376 states and 383 transitions. [2018-10-12 20:54:38,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-12 20:54:38,352 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2018-10-12 20:54:38,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:38,359 INFO L225 Difference]: With dead ends: 376 [2018-10-12 20:54:38,359 INFO L226 Difference]: Without dead ends: 365 [2018-10-12 20:54:38,363 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 [2018-10-12 20:54:38,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2018-10-12 20:54:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 219. [2018-10-12 20:54:38,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-10-12 20:54:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 225 transitions. [2018-10-12 20:54:38,404 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 225 transitions. Word has length 75 [2018-10-12 20:54:38,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:38,404 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 225 transitions. [2018-10-12 20:54:38,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-12 20:54:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 225 transitions. [2018-10-12 20:54:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-12 20:54:38,410 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:38,411 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] [2018-10-12 20:54:38,411 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:38,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:38,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1361626762, now seen corresponding path program 1 times [2018-10-12 20:54:38,412 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:38,829 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:54:38,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-12 20:54:38,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-12 20:54:38,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-12 20:54:38,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-12 20:54:38,831 INFO L87 Difference]: Start difference. First operand 219 states and 225 transitions. Second operand 11 states. [2018-10-12 20:54:39,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:39,957 INFO L93 Difference]: Finished difference Result 515 states and 525 transitions. [2018-10-12 20:54:39,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-12 20:54:39,958 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2018-10-12 20:54:39,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:39,961 INFO L225 Difference]: With dead ends: 515 [2018-10-12 20:54:39,961 INFO L226 Difference]: Without dead ends: 510 [2018-10-12 20:54:39,962 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2018-10-12 20:54:39,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2018-10-12 20:54:39,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 237. [2018-10-12 20:54:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-10-12 20:54:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 244 transitions. [2018-10-12 20:54:39,976 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 244 transitions. Word has length 91 [2018-10-12 20:54:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:39,977 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 244 transitions. [2018-10-12 20:54:39,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-12 20:54:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 244 transitions. [2018-10-12 20:54:39,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-12 20:54:39,981 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:39,981 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] [2018-10-12 20:54:39,981 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:39,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:39,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1091503726, now seen corresponding path program 1 times [2018-10-12 20:54:39,983 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-12 20:54:40,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:54:40,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-12 20:54:40,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-12 20:54:40,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-12 20:54:40,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-12 20:54:40,182 INFO L87 Difference]: Start difference. First operand 237 states and 244 transitions. Second operand 9 states. [2018-10-12 20:54:40,620 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2018-10-12 20:54:41,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:41,078 INFO L93 Difference]: Finished difference Result 366 states and 373 transitions. [2018-10-12 20:54:41,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-12 20:54:41,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2018-10-12 20:54:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:41,082 INFO L225 Difference]: With dead ends: 366 [2018-10-12 20:54:41,082 INFO L226 Difference]: Without dead ends: 334 [2018-10-12 20:54:41,082 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-10-12 20:54:41,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-10-12 20:54:41,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 237. [2018-10-12 20:54:41,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-10-12 20:54:41,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 243 transitions. [2018-10-12 20:54:41,091 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 243 transitions. Word has length 107 [2018-10-12 20:54:41,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:41,091 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 243 transitions. [2018-10-12 20:54:41,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-12 20:54:41,091 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 243 transitions. [2018-10-12 20:54:41,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-12 20:54:41,093 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:41,094 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] [2018-10-12 20:54:41,094 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:41,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:41,094 INFO L82 PathProgramCache]: Analyzing trace with hash -531209290, now seen corresponding path program 2 times [2018-10-12 20:54:41,095 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:41,209 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:41,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:54:41,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-12 20:54:41,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-12 20:54:41,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-12 20:54:41,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-12 20:54:41,212 INFO L87 Difference]: Start difference. First operand 237 states and 243 transitions. Second operand 3 states. [2018-10-12 20:54:41,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:41,243 INFO L93 Difference]: Finished difference Result 329 states and 335 transitions. [2018-10-12 20:54:41,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-12 20:54:41,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2018-10-12 20:54:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:41,246 INFO L225 Difference]: With dead ends: 329 [2018-10-12 20:54:41,246 INFO L226 Difference]: Without dead ends: 327 [2018-10-12 20:54:41,247 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 [2018-10-12 20:54:41,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-10-12 20:54:41,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 303. [2018-10-12 20:54:41,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2018-10-12 20:54:41,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 310 transitions. [2018-10-12 20:54:41,254 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 310 transitions. Word has length 134 [2018-10-12 20:54:41,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:41,255 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 310 transitions. [2018-10-12 20:54:41,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-12 20:54:41,255 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 310 transitions. [2018-10-12 20:54:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-12 20:54:41,257 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:41,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:54:41,258 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:41,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:41,258 INFO L82 PathProgramCache]: Analyzing trace with hash 850502294, now seen corresponding path program 1 times [2018-10-12 20:54:41,259 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:41,879 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-12 20:54:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-10-12 20:54:41,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:54:41,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-12 20:54:41,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-12 20:54:41,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-12 20:54:41,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-12 20:54:41,947 INFO L87 Difference]: Start difference. First operand 303 states and 310 transitions. Second operand 11 states. [2018-10-12 20:54:42,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:42,556 INFO L93 Difference]: Finished difference Result 328 states and 334 transitions. [2018-10-12 20:54:42,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-12 20:54:42,558 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 134 [2018-10-12 20:54:42,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:42,560 INFO L225 Difference]: With dead ends: 328 [2018-10-12 20:54:42,560 INFO L226 Difference]: Without dead ends: 323 [2018-10-12 20:54:42,560 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2018-10-12 20:54:42,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2018-10-12 20:54:42,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 194. [2018-10-12 20:54:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-10-12 20:54:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 197 transitions. [2018-10-12 20:54:42,565 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 197 transitions. Word has length 134 [2018-10-12 20:54:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:42,566 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 197 transitions. [2018-10-12 20:54:42,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-12 20:54:42,566 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 197 transitions. [2018-10-12 20:54:42,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-12 20:54:42,568 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:42,568 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] [2018-10-12 20:54:42,568 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:42,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:42,569 INFO L82 PathProgramCache]: Analyzing trace with hash -527119462, now seen corresponding path program 1 times [2018-10-12 20:54:42,570 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:44,132 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:54:44,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-12 20:54:44,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-12 20:54:44,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-12 20:54:44,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=747, Unknown=0, NotChecked=0, Total=812 [2018-10-12 20:54:44,134 INFO L87 Difference]: Start difference. First operand 194 states and 197 transitions. Second operand 29 states. [2018-10-12 20:54:45,598 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2018-10-12 20:54:45,843 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2018-10-12 20:54:46,068 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2018-10-12 20:54:46,287 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2018-10-12 20:54:46,554 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-12 20:54:46,819 WARN L178 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2018-10-12 20:54:47,101 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2018-10-12 20:54:49,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:49,911 INFO L93 Difference]: Finished difference Result 469 states and 476 transitions. [2018-10-12 20:54:49,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-12 20:54:49,913 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 150 [2018-10-12 20:54:49,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:49,915 INFO L225 Difference]: With dead ends: 469 [2018-10-12 20:54:49,915 INFO L226 Difference]: Without dead ends: 469 [2018-10-12 20:54:49,917 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=552, Invalid=3230, Unknown=0, NotChecked=0, Total=3782 [2018-10-12 20:54:49,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2018-10-12 20:54:49,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 359. [2018-10-12 20:54:49,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2018-10-12 20:54:49,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 365 transitions. [2018-10-12 20:54:49,926 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 365 transitions. Word has length 150 [2018-10-12 20:54:49,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:49,926 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 365 transitions. [2018-10-12 20:54:49,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-12 20:54:49,926 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 365 transitions. [2018-10-12 20:54:49,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-12 20:54:49,928 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:49,929 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] [2018-10-12 20:54:49,929 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:49,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:49,930 INFO L82 PathProgramCache]: Analyzing trace with hash 992645114, now seen corresponding path program 2 times [2018-10-12 20:54:49,930 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:54:51,349 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:54:51,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-10-12 20:54:51,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-10-12 20:54:51,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-10-12 20:54:51,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2018-10-12 20:54:51,350 INFO L87 Difference]: Start difference. First operand 359 states and 365 transitions. Second operand 31 states. [2018-10-12 20:54:53,857 WARN L178 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2018-10-12 20:54:54,341 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2018-10-12 20:54:56,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:54:56,252 INFO L93 Difference]: Finished difference Result 458 states and 464 transitions. [2018-10-12 20:54:56,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-10-12 20:54:56,253 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 177 [2018-10-12 20:54:56,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:54:56,256 INFO L225 Difference]: With dead ends: 458 [2018-10-12 20:54:56,256 INFO L226 Difference]: Without dead ends: 355 [2018-10-12 20:54:56,258 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=802, Invalid=3890, Unknown=0, NotChecked=0, Total=4692 [2018-10-12 20:54:56,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2018-10-12 20:54:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 278. [2018-10-12 20:54:56,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-10-12 20:54:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 282 transitions. [2018-10-12 20:54:56,265 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 282 transitions. Word has length 177 [2018-10-12 20:54:56,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:54:56,265 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 282 transitions. [2018-10-12 20:54:56,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-10-12 20:54:56,265 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 282 transitions. [2018-10-12 20:54:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-10-12 20:54:56,267 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:54:56,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:54:56,268 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:54:56,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:54:56,268 INFO L82 PathProgramCache]: Analyzing trace with hash -184551410, now seen corresponding path program 1 times [2018-10-12 20:54:56,269 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:54:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:54:57,137 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-12 20:54:59,387 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-12 20:54:59,387 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:54:59,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-10-12 20:54:59,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-10-12 20:54:59,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-10-12 20:54:59,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1875, Unknown=0, NotChecked=0, Total=1980 [2018-10-12 20:54:59,390 INFO L87 Difference]: Start difference. First operand 278 states and 282 transitions. Second operand 45 states. [2018-10-12 20:55:02,268 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2018-10-12 20:55:02,569 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-10-12 20:55:02,782 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2018-10-12 20:55:03,407 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2018-10-12 20:55:04,732 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2018-10-12 20:55:05,101 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2018-10-12 20:55:05,389 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2018-10-12 20:55:05,972 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2018-10-12 20:55:06,201 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2018-10-12 20:55:06,424 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2018-10-12 20:55:06,807 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2018-10-12 20:55:07,073 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2018-10-12 20:55:07,281 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 74 [2018-10-12 20:55:07,459 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2018-10-12 20:55:07,683 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2018-10-12 20:55:07,933 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2018-10-12 20:55:08,477 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 85 [2018-10-12 20:55:08,712 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 80 [2018-10-12 20:55:09,093 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 93 [2018-10-12 20:55:09,973 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2018-10-12 20:55:10,249 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2018-10-12 20:55:10,714 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2018-10-12 20:55:10,910 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2018-10-12 20:55:13,020 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-10-12 20:55:15,708 WARN L178 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-10-12 20:55:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:55:17,147 INFO L93 Difference]: Finished difference Result 499 states and 506 transitions. [2018-10-12 20:55:17,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-10-12 20:55:17,147 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 193 [2018-10-12 20:55:17,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:55:17,150 INFO L225 Difference]: With dead ends: 499 [2018-10-12 20:55:17,150 INFO L226 Difference]: Without dead ends: 447 [2018-10-12 20:55:17,155 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4078 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=1425, Invalid=15867, Unknown=0, NotChecked=0, Total=17292 [2018-10-12 20:55:17,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2018-10-12 20:55:17,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 364. [2018-10-12 20:55:17,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2018-10-12 20:55:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 369 transitions. [2018-10-12 20:55:17,163 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 369 transitions. Word has length 193 [2018-10-12 20:55:17,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:55:17,163 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 369 transitions. [2018-10-12 20:55:17,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-10-12 20:55:17,164 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 369 transitions. [2018-10-12 20:55:17,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-10-12 20:55:17,166 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:55:17,167 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:55:17,167 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:55:17,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:55:17,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2040075770, now seen corresponding path program 2 times [2018-10-12 20:55:17,169 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:55:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:55:19,636 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-10-12 20:55:19,793 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-10-12 20:55:19,985 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2018-10-12 20:55:20,151 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-10-12 20:55:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:55:23,186 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:55:23,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-10-12 20:55:23,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-10-12 20:55:23,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-10-12 20:55:23,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=3860, Unknown=0, NotChecked=0, Total=4032 [2018-10-12 20:55:23,189 INFO L87 Difference]: Start difference. First operand 364 states and 369 transitions. Second operand 64 states. [2018-10-12 20:55:24,086 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 35 [2018-10-12 20:55:24,933 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 41 [2018-10-12 20:55:25,350 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 42 [2018-10-12 20:55:25,706 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 35 [2018-10-12 20:55:25,990 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 22 [2018-10-12 20:55:26,216 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 25 [2018-10-12 20:55:26,460 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 28 [2018-10-12 20:55:26,819 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 30 [2018-10-12 20:55:27,212 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 35 [2018-10-12 20:55:27,591 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 42 [2018-10-12 20:55:27,997 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 49 [2018-10-12 20:55:28,563 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 63 [2018-10-12 20:55:28,745 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2018-10-12 20:55:29,132 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 65 [2018-10-12 20:55:29,450 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-10-12 20:55:30,053 WARN L178 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 76 [2018-10-12 20:55:30,357 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-10-12 20:55:30,825 WARN L178 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 82 [2018-10-12 20:55:31,095 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2018-10-12 20:55:31,831 WARN L178 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 86 [2018-10-12 20:55:32,200 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2018-10-12 20:55:32,731 WARN L178 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 90 [2018-10-12 20:55:33,079 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 88 [2018-10-12 20:55:33,656 WARN L178 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 113 [2018-10-12 20:55:33,928 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2018-10-12 20:55:34,421 WARN L178 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 109 [2018-10-12 20:55:34,647 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2018-10-12 20:55:35,204 WARN L178 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 113 [2018-10-12 20:55:35,731 WARN L178 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 106 [2018-10-12 20:55:36,384 WARN L178 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 117 [2018-10-12 20:55:36,669 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2018-10-12 20:55:37,283 WARN L178 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 110 [2018-10-12 20:55:37,856 WARN L178 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 119 [2018-10-12 20:55:38,146 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2018-10-12 20:55:38,673 WARN L178 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 112 [2018-10-12 20:55:39,251 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2018-10-12 20:55:39,527 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2018-10-12 20:55:39,839 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2018-10-12 20:55:40,067 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2018-10-12 20:55:40,502 WARN L178 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 93 [2018-10-12 20:55:40,773 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2018-10-12 20:55:40,977 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2018-10-12 20:55:41,144 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2018-10-12 20:55:41,452 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-10-12 20:55:41,728 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-12 20:55:42,089 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2018-10-12 20:55:42,581 WARN L178 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2018-10-12 20:55:42,961 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2018-10-12 20:55:43,393 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2018-10-12 20:55:43,684 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2018-10-12 20:55:44,033 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 97 [2018-10-12 20:55:44,400 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 91 [2018-10-12 20:55:44,808 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 95 [2018-10-12 20:55:45,201 WARN L178 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2018-10-12 20:55:45,413 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-10-12 20:55:45,590 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2018-10-12 20:55:45,774 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2018-10-12 20:55:46,231 WARN L178 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 112 [2018-10-12 20:55:47,021 WARN L178 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 111 [2018-10-12 20:55:47,535 WARN L178 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 111 [2018-10-12 20:55:48,031 WARN L178 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 117 [2018-10-12 20:55:48,453 WARN L178 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 105 [2018-10-12 20:55:49,084 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2018-10-12 20:55:49,360 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2018-10-12 20:55:49,594 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-10-12 20:55:50,819 WARN L178 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 119 [2018-10-12 20:55:52,417 WARN L178 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 107 [2018-10-12 20:55:53,094 WARN L178 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 95 [2018-10-12 20:55:53,599 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 59 [2018-10-12 20:55:54,202 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2018-10-12 20:55:54,694 WARN L178 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 115 [2018-10-12 20:55:55,079 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 59 [2018-10-12 20:55:55,469 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 61 [2018-10-12 20:55:56,002 WARN L178 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2018-10-12 20:55:56,637 WARN L178 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 120 [2018-10-12 20:55:56,831 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2018-10-12 20:55:57,547 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2018-10-12 20:55:57,933 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2018-10-12 20:55:58,613 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 89 [2018-10-12 20:55:59,318 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 85 [2018-10-12 20:55:59,879 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 93 [2018-10-12 20:56:00,309 WARN L178 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 98 [2018-10-12 20:56:00,668 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2018-10-12 20:56:00,959 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2018-10-12 20:56:01,301 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74 [2018-10-12 20:56:01,671 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2018-10-12 20:56:02,170 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-10-12 20:56:02,438 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2018-10-12 20:56:02,751 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-10-12 20:56:02,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:56:02,985 INFO L93 Difference]: Finished difference Result 592 states and 599 transitions. [2018-10-12 20:56:02,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-10-12 20:56:02,985 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 236 [2018-10-12 20:56:02,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:56:02,989 INFO L225 Difference]: With dead ends: 592 [2018-10-12 20:56:02,989 INFO L226 Difference]: Without dead ends: 592 [2018-10-12 20:56:02,998 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8814 ImplicationChecksByTransitivity, 36.5s TimeCoverageRelationStatistics Valid=3197, Invalid=28309, Unknown=0, NotChecked=0, Total=31506 [2018-10-12 20:56:02,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-10-12 20:56:03,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 488. [2018-10-12 20:56:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-10-12 20:56:03,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 495 transitions. [2018-10-12 20:56:03,009 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 495 transitions. Word has length 236 [2018-10-12 20:56:03,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:56:03,009 INFO L481 AbstractCegarLoop]: Abstraction has 488 states and 495 transitions. [2018-10-12 20:56:03,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-10-12 20:56:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 495 transitions. [2018-10-12 20:56:03,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-10-12 20:56:03,012 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:56:03,013 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:56:03,013 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:56:03,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:56:03,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1626409754, now seen corresponding path program 3 times [2018-10-12 20:56:03,014 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:56:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:56:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-10-12 20:56:03,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 20:56:03,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-12 20:56:03,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-12 20:56:03,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-12 20:56:03,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-12 20:56:03,114 INFO L87 Difference]: Start difference. First operand 488 states and 495 transitions. Second operand 3 states. [2018-10-12 20:56:03,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:56:03,217 INFO L93 Difference]: Finished difference Result 415 states and 418 transitions. [2018-10-12 20:56:03,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-12 20:56:03,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2018-10-12 20:56:03,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:56:03,219 INFO L225 Difference]: With dead ends: 415 [2018-10-12 20:56:03,220 INFO L226 Difference]: Without dead ends: 415 [2018-10-12 20:56:03,220 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 [2018-10-12 20:56:03,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2018-10-12 20:56:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 404. [2018-10-12 20:56:03,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2018-10-12 20:56:03,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 407 transitions. [2018-10-12 20:56:03,228 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 407 transitions. Word has length 236 [2018-10-12 20:56:03,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:56:03,229 INFO L481 AbstractCegarLoop]: Abstraction has 404 states and 407 transitions. [2018-10-12 20:56:03,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-12 20:56:03,229 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 407 transitions. [2018-10-12 20:56:03,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-10-12 20:56:03,232 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:56:03,232 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-12 20:56:03,232 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:56:03,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:56:03,233 INFO L82 PathProgramCache]: Analyzing trace with hash -634730086, now seen corresponding path program 4 times [2018-10-12 20:56:03,233 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:56:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:56:05,752 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 11 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 20:56:05,752 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:56:05,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-10-12 20:56:05,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-10-12 20:56:05,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-10-12 20:56:05,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=3027, Unknown=0, NotChecked=0, Total=3192 [2018-10-12 20:56:05,754 INFO L87 Difference]: Start difference. First operand 404 states and 407 transitions. Second operand 57 states. [2018-10-12 20:56:07,794 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2018-10-12 20:56:08,148 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 56 [2018-10-12 20:56:08,378 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 60 [2018-10-12 20:56:08,727 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 66 [2018-10-12 20:56:08,981 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 71 [2018-10-12 20:56:09,224 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2018-10-12 20:56:09,423 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2018-10-12 20:56:09,663 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2018-10-12 20:56:09,958 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2018-10-12 20:56:11,516 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2018-10-12 20:56:11,761 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2018-10-12 20:56:12,695 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2018-10-12 20:56:12,947 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2018-10-12 20:56:13,720 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2018-10-12 20:56:13,912 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2018-10-12 20:56:14,116 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-12 20:56:14,300 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2018-10-12 20:56:14,551 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2018-10-12 20:56:15,267 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2018-10-12 20:56:17,283 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2018-10-12 20:56:17,501 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2018-10-12 20:56:17,774 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2018-10-12 20:56:18,260 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2018-10-12 20:56:18,550 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2018-10-12 20:56:18,854 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 87 [2018-10-12 20:56:19,123 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 85 [2018-10-12 20:56:19,344 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2018-10-12 20:56:19,552 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2018-10-12 20:56:20,401 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2018-10-12 20:56:21,633 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2018-10-12 20:56:22,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:56:22,520 INFO L93 Difference]: Finished difference Result 479 states and 481 transitions. [2018-10-12 20:56:22,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-10-12 20:56:22,521 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 263 [2018-10-12 20:56:22,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:56:22,524 INFO L225 Difference]: With dead ends: 479 [2018-10-12 20:56:22,524 INFO L226 Difference]: Without dead ends: 376 [2018-10-12 20:56:22,526 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4614 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=1931, Invalid=17251, Unknown=0, NotChecked=0, Total=19182 [2018-10-12 20:56:22,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-10-12 20:56:22,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 323. [2018-10-12 20:56:22,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-10-12 20:56:22,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 325 transitions. [2018-10-12 20:56:22,532 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 325 transitions. Word has length 263 [2018-10-12 20:56:22,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:56:22,533 INFO L481 AbstractCegarLoop]: Abstraction has 323 states and 325 transitions. [2018-10-12 20:56:22,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-10-12 20:56:22,533 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 325 transitions. [2018-10-12 20:56:22,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-10-12 20:56:22,537 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:56:22,537 INFO L375 BasicCegarLoop]: trace histogram [5, 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, 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] [2018-10-12 20:56:22,537 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:56:22,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:56:22,538 INFO L82 PathProgramCache]: Analyzing trace with hash -795283026, now seen corresponding path program 5 times [2018-10-12 20:56:22,538 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:56:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:56:23,199 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-12 20:56:23,403 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-12 20:56:32,562 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 239 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-12 20:56:32,563 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:56:32,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-10-12 20:56:32,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-10-12 20:56:32,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-10-12 20:56:32,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=6558, Unknown=0, NotChecked=0, Total=6806 [2018-10-12 20:56:32,564 INFO L87 Difference]: Start difference. First operand 323 states and 325 transitions. Second operand 83 states. [2018-10-12 20:56:35,620 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2018-10-12 20:56:36,222 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 64 [2018-10-12 20:56:36,606 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 70 [2018-10-12 20:56:37,216 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 76 [2018-10-12 20:56:37,637 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 80 [2018-10-12 20:56:37,900 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 46 [2018-10-12 20:56:38,547 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2018-10-12 20:56:39,157 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 62 [2018-10-12 20:56:39,393 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2018-10-12 20:56:39,712 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 67 [2018-10-12 20:56:39,969 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 62 [2018-10-12 20:56:40,633 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2018-10-12 20:56:40,853 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2018-10-12 20:56:41,271 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2018-10-12 20:56:41,603 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 88 [2018-10-12 20:56:42,035 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 100 [2018-10-12 20:56:42,530 WARN L178 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 115 [2018-10-12 20:56:43,019 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2018-10-12 20:56:43,498 WARN L178 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 97 [2018-10-12 20:56:44,088 WARN L178 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 112 [2018-10-12 20:56:44,732 WARN L178 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 106 [2018-10-12 20:56:45,349 WARN L178 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 117 [2018-10-12 20:56:46,028 WARN L178 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 128 [2018-10-12 20:56:46,445 WARN L178 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2018-10-12 20:56:46,745 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2018-10-12 20:56:47,171 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2018-10-12 20:56:47,592 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2018-10-12 20:56:48,365 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-10-12 20:56:48,683 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-10-12 20:56:49,348 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-10-12 20:56:49,608 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2018-10-12 20:56:49,815 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2018-10-12 20:56:50,244 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-10-12 20:56:50,572 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2018-10-12 20:56:50,997 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 100 [2018-10-12 20:56:51,424 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 113 [2018-10-12 20:56:52,133 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2018-10-12 20:56:52,413 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 90 [2018-10-12 20:56:52,785 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2018-10-12 20:56:53,117 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2018-10-12 20:56:53,685 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-10-12 20:56:54,014 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2018-10-12 20:56:54,317 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2018-10-12 20:56:55,438 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2018-10-12 20:56:55,682 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-10-12 20:56:55,957 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2018-10-12 20:56:56,180 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2018-10-12 20:56:56,587 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2018-10-12 20:56:56,890 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2018-10-12 20:56:57,288 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2018-10-12 20:56:57,707 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 115 [2018-10-12 20:56:58,372 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2018-10-12 20:56:58,627 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2018-10-12 20:56:59,111 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2018-10-12 20:56:59,446 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2018-10-12 20:57:02,233 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2018-10-12 20:57:02,800 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2018-10-12 20:57:03,163 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2018-10-12 20:57:03,614 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2018-10-12 20:57:04,174 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-10-12 20:57:04,429 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2018-10-12 20:57:06,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:57:06,381 INFO L93 Difference]: Finished difference Result 471 states and 473 transitions. [2018-10-12 20:57:06,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-10-12 20:57:06,381 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 279 [2018-10-12 20:57:06,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:57:06,383 INFO L225 Difference]: With dead ends: 471 [2018-10-12 20:57:06,383 INFO L226 Difference]: Without dead ends: 419 [2018-10-12 20:57:06,385 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 2 SyntacticMatches, 7 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8675 ImplicationChecksByTransitivity, 31.6s TimeCoverageRelationStatistics Valid=2190, Invalid=33720, Unknown=0, NotChecked=0, Total=35910 [2018-10-12 20:57:06,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2018-10-12 20:57:06,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 366. [2018-10-12 20:57:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-10-12 20:57:06,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 368 transitions. [2018-10-12 20:57:06,392 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 368 transitions. Word has length 279 [2018-10-12 20:57:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:57:06,393 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 368 transitions. [2018-10-12 20:57:06,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-10-12 20:57:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 368 transitions. [2018-10-12 20:57:06,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-10-12 20:57:06,394 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:57:06,395 INFO L375 BasicCegarLoop]: trace histogram [6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:57:06,395 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:57:06,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:57:06,396 INFO L82 PathProgramCache]: Analyzing trace with hash 356538458, now seen corresponding path program 6 times [2018-10-12 20:57:06,396 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:57:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:57:07,164 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-12 20:57:07,361 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-12 20:57:07,626 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-10-12 20:57:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 393 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-12 20:57:20,821 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:57:20,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-10-12 20:57:20,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-10-12 20:57:20,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-10-12 20:57:20,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=9149, Unknown=0, NotChecked=0, Total=9506 [2018-10-12 20:57:20,823 INFO L87 Difference]: Start difference. First operand 366 states and 368 transitions. Second operand 98 states. [2018-10-12 20:57:22,976 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 42 [2018-10-12 20:57:24,560 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 37 [2018-10-12 20:57:24,878 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 44 [2018-10-12 20:57:25,241 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 52 [2018-10-12 20:57:25,794 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 68 [2018-10-12 20:57:26,246 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 69 [2018-10-12 20:57:26,991 WARN L178 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 81 [2018-10-12 20:57:27,661 WARN L178 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 88 [2018-10-12 20:57:28,554 WARN L178 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 94 [2018-10-12 20:57:29,301 WARN L178 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 98 [2018-10-12 20:57:30,100 WARN L178 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 106 [2018-10-12 20:57:30,711 WARN L178 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 103 [2018-10-12 20:57:31,492 WARN L178 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 106 [2018-10-12 20:57:32,184 WARN L178 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 105 [2018-10-12 20:57:32,874 WARN L178 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 82 [2018-10-12 20:57:33,514 WARN L178 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 96 [2018-10-12 20:57:34,086 WARN L178 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 86 [2018-10-12 20:57:34,680 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2018-10-12 20:57:35,077 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2018-10-12 20:57:35,391 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2018-10-12 20:57:35,922 WARN L178 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2018-10-12 20:57:36,420 WARN L178 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2018-10-12 20:57:37,006 WARN L178 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2018-10-12 20:57:37,748 WARN L178 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2018-10-12 20:57:38,566 WARN L178 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 132 [2018-10-12 20:57:39,400 WARN L178 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 136 [2018-10-12 20:57:40,041 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2018-10-12 20:57:40,676 WARN L178 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2018-10-12 20:57:41,449 WARN L178 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 138 [2018-10-12 20:57:42,251 WARN L178 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 125 [2018-10-12 20:57:43,170 WARN L178 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 133 [2018-10-12 20:57:44,014 WARN L178 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 144 [2018-10-12 20:57:44,475 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2018-10-12 20:57:44,855 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2018-10-12 20:57:45,494 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2018-10-12 20:57:45,924 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2018-10-12 20:57:46,702 WARN L178 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 96 [2018-10-12 20:57:47,339 WARN L178 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 106 [2018-10-12 20:57:47,835 WARN L178 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 94 [2018-10-12 20:57:48,426 WARN L178 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 92 [2018-10-12 20:57:49,050 WARN L178 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 96 [2018-10-12 20:57:49,488 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2018-10-12 20:57:49,854 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2018-10-12 20:57:50,211 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2018-10-12 20:57:51,137 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-10-12 20:57:51,440 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2018-10-12 20:57:51,796 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2018-10-12 20:57:52,223 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2018-10-12 20:57:52,712 WARN L178 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 115 [2018-10-12 20:57:53,225 WARN L178 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 118 [2018-10-12 20:57:53,513 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2018-10-12 20:57:53,906 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2018-10-12 20:57:54,411 WARN L178 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2018-10-12 20:57:54,875 WARN L178 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2018-10-12 20:57:55,464 WARN L178 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 120 [2018-10-12 20:57:56,002 WARN L178 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 128 [2018-10-12 20:57:56,292 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2018-10-12 20:57:56,543 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2018-10-12 20:57:56,827 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2018-10-12 20:57:57,731 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73 [2018-10-12 20:57:57,976 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2018-10-12 20:57:58,748 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 68 [2018-10-12 20:57:59,460 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 59 [2018-10-12 20:57:59,974 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 43 [2018-10-12 20:58:00,376 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 48 [2018-10-12 20:58:00,955 WARN L178 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 93 [2018-10-12 20:58:01,782 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2018-10-12 20:58:02,883 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 71 [2018-10-12 20:58:03,383 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2018-10-12 20:58:03,766 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2018-10-12 20:58:04,090 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2018-10-12 20:58:06,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:58:06,162 INFO L93 Difference]: Finished difference Result 429 states and 431 transitions. [2018-10-12 20:58:06,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-10-12 20:58:06,163 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 322 [2018-10-12 20:58:06,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:58:06,166 INFO L225 Difference]: With dead ends: 429 [2018-10-12 20:58:06,166 INFO L226 Difference]: Without dead ends: 429 [2018-10-12 20:58:06,168 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 8 SyntacticMatches, 13 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7724 ImplicationChecksByTransitivity, 47.5s TimeCoverageRelationStatistics Valid=3245, Invalid=32665, Unknown=0, NotChecked=0, Total=35910 [2018-10-12 20:58:06,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2018-10-12 20:58:06,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 393. [2018-10-12 20:58:06,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2018-10-12 20:58:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 395 transitions. [2018-10-12 20:58:06,174 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 395 transitions. Word has length 322 [2018-10-12 20:58:06,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:58:06,175 INFO L481 AbstractCegarLoop]: Abstraction has 393 states and 395 transitions. [2018-10-12 20:58:06,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-10-12 20:58:06,175 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 395 transitions. [2018-10-12 20:58:06,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-10-12 20:58:06,177 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 20:58:06,177 INFO L375 BasicCegarLoop]: trace histogram [6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 20:58:06,178 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 20:58:06,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 20:58:06,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1617759034, now seen corresponding path program 7 times [2018-10-12 20:58:06,179 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 20:58:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 20:58:06,905 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-12 20:58:07,746 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 24 proven. 138 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2018-10-12 20:58:07,747 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 20:58:07,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-12 20:58:07,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-12 20:58:07,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-12 20:58:07,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2018-10-12 20:58:07,748 INFO L87 Difference]: Start difference. First operand 393 states and 395 transitions. Second operand 24 states. [2018-10-12 20:58:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 20:58:09,983 INFO L93 Difference]: Finished difference Result 370 states and 371 transitions. [2018-10-12 20:58:09,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-12 20:58:09,983 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 349 [2018-10-12 20:58:09,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 20:58:09,985 INFO L225 Difference]: With dead ends: 370 [2018-10-12 20:58:09,985 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 20:58:09,985 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=592, Invalid=2378, Unknown=0, NotChecked=0, Total=2970 [2018-10-12 20:58:09,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 20:58:09,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 20:58:09,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 20:58:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 20:58:09,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2018-10-12 20:58:09,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 20:58:09,987 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 20:58:09,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-12 20:58:09,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 20:58:09,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 20:58:09,992 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 08:58:09 BoogieIcfgContainer [2018-10-12 20:58:09,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 20:58:09,993 INFO L168 Benchmark]: Toolchain (without parser) took 216723.53 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 48.8 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 236.2 MB). Peak memory consumption was 285.0 MB. Max. memory is 7.1 GB. [2018-10-12 20:58:09,994 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:58:09,994 INFO L168 Benchmark]: Boogie Preprocessor took 88.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 20:58:09,995 INFO L168 Benchmark]: RCFGBuilder took 985.96 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-12 20:58:09,995 INFO L168 Benchmark]: TraceAbstraction took 215643.54 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 48.8 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 193.8 MB). Peak memory consumption was 242.6 MB. Max. memory is 7.1 GB. [2018-10-12 20:58:09,997 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 0.15 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 88.78 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 985.96 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215643.54 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 48.8 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 193.8 MB). Peak memory consumption was 242.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 260]: 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, 148 locations, 1 error locations. SAFE Result, 215.5s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 172.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2009 SDtfs, 25107 SDslu, 31974 SDs, 0 SdLazy, 44603 SolverSat, 1452 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 44.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1160 GetRequests, 44 SyntacticMatches, 27 SemanticMatches, 1089 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36190 ImplicationChecksByTransitivity, 157.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=488occurred in iteration=10, 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, 15 MinimizatonAttempts, 1310 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 39.9s InterpolantComputationTime, 2794 NumberOfCodeBlocks, 2794 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2779 ConstructedInterpolants, 0 QuantifiedInterpolants, 12117023 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 561/1695 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_48.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_20-58-10-005.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/alternating_list_true-unreach-call_true-valid-memsafety.i_48.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_20-58-10-005.csv Received shutdown request...