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/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d769cf3 [2018-10-15 15:07:25,692 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 15:07:25,695 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 15:07:25,712 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-15 15:07:25,773 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-15 15:07:25,789 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 15:07:25,790 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 15:07:25,791 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 15:07:25,791 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 15:07:25,791 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 15:07:25,791 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 15:07:25,792 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 15:07:25,793 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 15:07:25,793 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 15:07:25,793 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 15:07:25,793 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 15:07:25,794 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 15:07:25,794 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 15:07:25,795 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 15:07:25,795 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 15:07:25,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 15:07:25,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 15:07:25,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 15:07:25,885 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 15:07:25,886 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 15:07:25,887 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl [2018-10-15 15:07:25,887 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl' [2018-10-15 15:07:25,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 15:07:25,993 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-15 15:07:25,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 15:07:25,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 15:07:25,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 15:07:26,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:25" (1/1) ... [2018-10-15 15:07:26,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:25" (1/1) ... [2018-10-15 15:07:26,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:25" (1/1) ... [2018-10-15 15:07:26,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:25" (1/1) ... [2018-10-15 15:07:26,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:25" (1/1) ... [2018-10-15 15:07:26,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:25" (1/1) ... [2018-10-15 15:07:26,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:25" (1/1) ... [2018-10-15 15:07:26,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 15:07:26,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 15:07:26,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 15:07:26,068 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 15:07:26,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:25" (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 [2018-10-15 15:07:26,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 15:07:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 15:07:27,211 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 15:07:27,211 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:27 BoogieIcfgContainer [2018-10-15 15:07:27,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 15:07:27,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 15:07:27,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 15:07:27,216 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 15:07:27,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:25" (1/2) ... [2018-10-15 15:07:27,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631b3e6e and model type pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:27, skipping insertion in model container [2018-10-15 15:07:27,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:27" (2/2) ... [2018-10-15 15:07:27,220 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl [2018-10-15 15:07:27,230 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 15:07:27,250 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 15:07:27,268 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 15:07:27,303 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 15:07:27,304 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 15:07:27,304 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 15:07:27,304 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 15:07:27,305 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 15:07:27,305 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 15:07:27,305 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 15:07:27,305 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 15:07:27,306 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 15:07:27,344 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states. [2018-10-15 15:07:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-10-15 15:07:27,368 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:27,369 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:27,371 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:27,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:27,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1221381698, now seen corresponding path program 1 times [2018-10-15 15:07:27,439 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:27,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:07:27,963 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:07:27,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:07:27,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:07:27,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:07:27,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:07:27,996 INFO L87 Difference]: Start difference. First operand 259 states. Second operand 3 states. [2018-10-15 15:07:28,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:28,140 INFO L93 Difference]: Finished difference Result 341 states and 352 transitions. [2018-10-15 15:07:28,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:07:28,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2018-10-15 15:07:28,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:28,163 INFO L225 Difference]: With dead ends: 341 [2018-10-15 15:07:28,163 INFO L226 Difference]: Without dead ends: 341 [2018-10-15 15:07:28,167 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 [2018-10-15 15:07:28,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2018-10-15 15:07:28,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 338. [2018-10-15 15:07:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-10-15 15:07:28,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 350 transitions. [2018-10-15 15:07:28,260 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 350 transitions. Word has length 228 [2018-10-15 15:07:28,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:28,262 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 350 transitions. [2018-10-15 15:07:28,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:07:28,263 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 350 transitions. [2018-10-15 15:07:28,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-10-15 15:07:28,270 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:28,270 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:28,271 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:28,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:28,272 INFO L82 PathProgramCache]: Analyzing trace with hash 350188635, now seen corresponding path program 1 times [2018-10-15 15:07:28,274 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:07:28,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:07:28,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-15 15:07:28,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-15 15:07:28,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-15 15:07:28,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-15 15:07:28,676 INFO L87 Difference]: Start difference. First operand 338 states and 350 transitions. Second operand 8 states. [2018-10-15 15:07:29,259 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-15 15:07:29,621 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-15 15:07:29,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:29,987 INFO L93 Difference]: Finished difference Result 538 states and 561 transitions. [2018-10-15 15:07:29,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-15 15:07:29,988 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2018-10-15 15:07:29,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:29,993 INFO L225 Difference]: With dead ends: 538 [2018-10-15 15:07:29,993 INFO L226 Difference]: Without dead ends: 538 [2018-10-15 15:07:29,994 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2018-10-15 15:07:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2018-10-15 15:07:30,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 356. [2018-10-15 15:07:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-15 15:07:30,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 368 transitions. [2018-10-15 15:07:30,018 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 368 transitions. Word has length 230 [2018-10-15 15:07:30,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:30,019 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 368 transitions. [2018-10-15 15:07:30,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-15 15:07:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 368 transitions. [2018-10-15 15:07:30,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-10-15 15:07:30,024 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:30,024 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:30,025 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:30,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:30,025 INFO L82 PathProgramCache]: Analyzing trace with hash 751795354, now seen corresponding path program 1 times [2018-10-15 15:07:30,027 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:07:30,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:07:30,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:07:30,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:07:30,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:07:30,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:07:30,242 INFO L87 Difference]: Start difference. First operand 356 states and 368 transitions. Second operand 3 states. [2018-10-15 15:07:30,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:30,270 INFO L93 Difference]: Finished difference Result 516 states and 537 transitions. [2018-10-15 15:07:30,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:07:30,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2018-10-15 15:07:30,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:30,276 INFO L225 Difference]: With dead ends: 516 [2018-10-15 15:07:30,276 INFO L226 Difference]: Without dead ends: 516 [2018-10-15 15:07:30,277 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 [2018-10-15 15:07:30,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2018-10-15 15:07:30,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 514. [2018-10-15 15:07:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2018-10-15 15:07:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 535 transitions. [2018-10-15 15:07:30,323 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 535 transitions. Word has length 231 [2018-10-15 15:07:30,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:30,324 INFO L481 AbstractCegarLoop]: Abstraction has 514 states and 535 transitions. [2018-10-15 15:07:30,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:07:30,325 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 535 transitions. [2018-10-15 15:07:30,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-10-15 15:07:30,332 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:30,333 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:30,333 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:30,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:30,333 INFO L82 PathProgramCache]: Analyzing trace with hash 930281913, now seen corresponding path program 1 times [2018-10-15 15:07:30,335 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:07:30,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:07:30,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:07:30,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:07:30,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:07:30,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:07:30,560 INFO L87 Difference]: Start difference. First operand 514 states and 535 transitions. Second operand 3 states. [2018-10-15 15:07:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:30,583 INFO L93 Difference]: Finished difference Result 697 states and 728 transitions. [2018-10-15 15:07:30,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:07:30,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2018-10-15 15:07:30,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:30,591 INFO L225 Difference]: With dead ends: 697 [2018-10-15 15:07:30,591 INFO L226 Difference]: Without dead ends: 697 [2018-10-15 15:07:30,592 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 [2018-10-15 15:07:30,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-10-15 15:07:30,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 694. [2018-10-15 15:07:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2018-10-15 15:07:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 726 transitions. [2018-10-15 15:07:30,610 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 726 transitions. Word has length 233 [2018-10-15 15:07:30,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:30,610 INFO L481 AbstractCegarLoop]: Abstraction has 694 states and 726 transitions. [2018-10-15 15:07:30,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:07:30,611 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 726 transitions. [2018-10-15 15:07:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2018-10-15 15:07:30,615 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:30,616 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:30,616 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:30,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:30,617 INFO L82 PathProgramCache]: Analyzing trace with hash -135809582, now seen corresponding path program 1 times [2018-10-15 15:07:30,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:07:30,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:07:30,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:07:30,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:07:30,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:07:30,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:07:30,848 INFO L87 Difference]: Start difference. First operand 694 states and 726 transitions. Second operand 3 states. [2018-10-15 15:07:30,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:30,876 INFO L93 Difference]: Finished difference Result 1201 states and 1259 transitions. [2018-10-15 15:07:30,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:07:30,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2018-10-15 15:07:30,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:30,890 INFO L225 Difference]: With dead ends: 1201 [2018-10-15 15:07:30,891 INFO L226 Difference]: Without dead ends: 1201 [2018-10-15 15:07:30,891 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 [2018-10-15 15:07:30,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2018-10-15 15:07:30,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1174. [2018-10-15 15:07:30,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2018-10-15 15:07:30,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1233 transitions. [2018-10-15 15:07:30,916 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1233 transitions. Word has length 299 [2018-10-15 15:07:30,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:30,917 INFO L481 AbstractCegarLoop]: Abstraction has 1174 states and 1233 transitions. [2018-10-15 15:07:30,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:07:30,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1233 transitions. [2018-10-15 15:07:30,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-10-15 15:07:30,920 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:30,920 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:30,921 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:30,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:30,921 INFO L82 PathProgramCache]: Analyzing trace with hash -185378864, now seen corresponding path program 1 times [2018-10-15 15:07:30,923 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:07:31,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:07:31,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:07:31,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:07:31,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:07:31,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:07:31,085 INFO L87 Difference]: Start difference. First operand 1174 states and 1233 transitions. Second operand 3 states. [2018-10-15 15:07:31,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:31,194 INFO L93 Difference]: Finished difference Result 2143 states and 2249 transitions. [2018-10-15 15:07:31,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:07:31,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2018-10-15 15:07:31,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:31,203 INFO L225 Difference]: With dead ends: 2143 [2018-10-15 15:07:31,203 INFO L226 Difference]: Without dead ends: 2143 [2018-10-15 15:07:31,204 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 [2018-10-15 15:07:31,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2018-10-15 15:07:31,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2092. [2018-10-15 15:07:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2018-10-15 15:07:31,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2199 transitions. [2018-10-15 15:07:31,241 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2199 transitions. Word has length 300 [2018-10-15 15:07:31,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:31,242 INFO L481 AbstractCegarLoop]: Abstraction has 2092 states and 2199 transitions. [2018-10-15 15:07:31,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:07:31,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2199 transitions. [2018-10-15 15:07:31,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-10-15 15:07:31,246 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:31,247 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:31,248 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:31,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:31,248 INFO L82 PathProgramCache]: Analyzing trace with hash 470087225, now seen corresponding path program 1 times [2018-10-15 15:07:31,250 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-15 15:07:31,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:07:31,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:07:31,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:07:31,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:07:31,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:07:31,473 INFO L87 Difference]: Start difference. First operand 2092 states and 2199 transitions. Second operand 3 states. [2018-10-15 15:07:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:31,562 INFO L93 Difference]: Finished difference Result 2095 states and 2189 transitions. [2018-10-15 15:07:31,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:07:31,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2018-10-15 15:07:31,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:31,572 INFO L225 Difference]: With dead ends: 2095 [2018-10-15 15:07:31,572 INFO L226 Difference]: Without dead ends: 2095 [2018-10-15 15:07:31,573 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 [2018-10-15 15:07:31,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2018-10-15 15:07:31,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2092. [2018-10-15 15:07:31,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2018-10-15 15:07:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2187 transitions. [2018-10-15 15:07:31,613 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2187 transitions. Word has length 301 [2018-10-15 15:07:31,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:31,613 INFO L481 AbstractCegarLoop]: Abstraction has 2092 states and 2187 transitions. [2018-10-15 15:07:31,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:07:31,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2187 transitions. [2018-10-15 15:07:31,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-10-15 15:07:31,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:31,617 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:31,617 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:31,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:31,618 INFO L82 PathProgramCache]: Analyzing trace with hash 939492379, now seen corresponding path program 2 times [2018-10-15 15:07:31,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:31,874 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:07:31,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:07:31,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:07:31,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:07:31,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:07:31,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:07:31,877 INFO L87 Difference]: Start difference. First operand 2092 states and 2187 transitions. Second operand 3 states. [2018-10-15 15:07:31,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:31,994 INFO L93 Difference]: Finished difference Result 3943 states and 4109 transitions. [2018-10-15 15:07:31,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:07:31,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2018-10-15 15:07:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:32,011 INFO L225 Difference]: With dead ends: 3943 [2018-10-15 15:07:32,012 INFO L226 Difference]: Without dead ends: 3943 [2018-10-15 15:07:32,012 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 [2018-10-15 15:07:32,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2018-10-15 15:07:32,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3844. [2018-10-15 15:07:32,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3844 states. [2018-10-15 15:07:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 4011 transitions. [2018-10-15 15:07:32,101 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 4011 transitions. Word has length 301 [2018-10-15 15:07:32,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:32,102 INFO L481 AbstractCegarLoop]: Abstraction has 3844 states and 4011 transitions. [2018-10-15 15:07:32,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:07:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 4011 transitions. [2018-10-15 15:07:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-10-15 15:07:32,107 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:32,108 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:32,108 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:32,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:32,109 INFO L82 PathProgramCache]: Analyzing trace with hash 965386191, now seen corresponding path program 1 times [2018-10-15 15:07:32,110 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-15 15:07:32,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:07:32,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:07:32,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:07:32,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:07:32,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:07:32,377 INFO L87 Difference]: Start difference. First operand 3844 states and 4011 transitions. Second operand 3 states. [2018-10-15 15:07:32,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:32,465 INFO L93 Difference]: Finished difference Result 2011 states and 2081 transitions. [2018-10-15 15:07:32,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:07:32,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 302 [2018-10-15 15:07:32,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:32,476 INFO L225 Difference]: With dead ends: 2011 [2018-10-15 15:07:32,476 INFO L226 Difference]: Without dead ends: 2011 [2018-10-15 15:07:32,476 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 [2018-10-15 15:07:32,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2018-10-15 15:07:32,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 2008. [2018-10-15 15:07:32,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2018-10-15 15:07:32,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2079 transitions. [2018-10-15 15:07:32,524 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2079 transitions. Word has length 302 [2018-10-15 15:07:32,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:32,525 INFO L481 AbstractCegarLoop]: Abstraction has 2008 states and 2079 transitions. [2018-10-15 15:07:32,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:07:32,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2079 transitions. [2018-10-15 15:07:32,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-10-15 15:07:32,530 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:32,530 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:32,530 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:32,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:32,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1162414099, now seen corresponding path program 2 times [2018-10-15 15:07:32,533 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:32,942 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 9 proven. 31 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-15 15:07:32,942 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:07:32,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-10-15 15:07:32,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-15 15:07:32,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-15 15:07:32,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-15 15:07:32,944 INFO L87 Difference]: Start difference. First operand 2008 states and 2079 transitions. Second operand 4 states. [2018-10-15 15:07:33,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:33,093 INFO L93 Difference]: Finished difference Result 3128 states and 3223 transitions. [2018-10-15 15:07:33,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-15 15:07:33,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2018-10-15 15:07:33,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:33,106 INFO L225 Difference]: With dead ends: 3128 [2018-10-15 15:07:33,106 INFO L226 Difference]: Without dead ends: 3128 [2018-10-15 15:07:33,106 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-15 15:07:33,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2018-10-15 15:07:33,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 3120. [2018-10-15 15:07:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3120 states. [2018-10-15 15:07:33,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 3215 transitions. [2018-10-15 15:07:33,163 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 3215 transitions. Word has length 302 [2018-10-15 15:07:33,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:33,163 INFO L481 AbstractCegarLoop]: Abstraction has 3120 states and 3215 transitions. [2018-10-15 15:07:33,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-15 15:07:33,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 3215 transitions. [2018-10-15 15:07:33,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2018-10-15 15:07:33,170 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:33,170 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:33,170 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:33,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:33,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1245217114, now seen corresponding path program 3 times [2018-10-15 15:07:33,172 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:33,728 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-15 15:07:33,938 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 27 proven. 244 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-15 15:07:33,939 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:07:33,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-15 15:07:33,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 15:07:33,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 15:07:33,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-15 15:07:33,941 INFO L87 Difference]: Start difference. First operand 3120 states and 3215 transitions. Second operand 5 states. [2018-10-15 15:07:34,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:34,057 INFO L93 Difference]: Finished difference Result 4080 states and 4199 transitions. [2018-10-15 15:07:34,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 15:07:34,057 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 441 [2018-10-15 15:07:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:34,075 INFO L225 Difference]: With dead ends: 4080 [2018-10-15 15:07:34,075 INFO L226 Difference]: Without dead ends: 4080 [2018-10-15 15:07:34,076 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-15 15:07:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4080 states. [2018-10-15 15:07:34,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4080 to 4072. [2018-10-15 15:07:34,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4072 states. [2018-10-15 15:07:34,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4072 states to 4072 states and 4191 transitions. [2018-10-15 15:07:34,151 INFO L78 Accepts]: Start accepts. Automaton has 4072 states and 4191 transitions. Word has length 441 [2018-10-15 15:07:34,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:34,152 INFO L481 AbstractCegarLoop]: Abstraction has 4072 states and 4191 transitions. [2018-10-15 15:07:34,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 15:07:34,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4072 states and 4191 transitions. [2018-10-15 15:07:34,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2018-10-15 15:07:34,163 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:34,164 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:34,164 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:34,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:34,165 INFO L82 PathProgramCache]: Analyzing trace with hash -218066483, now seen corresponding path program 4 times [2018-10-15 15:07:34,166 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:35,195 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 45 proven. 696 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-10-15 15:07:35,195 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:07:35,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-15 15:07:35,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-15 15:07:35,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-15 15:07:35,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-15 15:07:35,196 INFO L87 Difference]: Start difference. First operand 4072 states and 4191 transitions. Second operand 6 states. [2018-10-15 15:07:35,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:35,366 INFO L93 Difference]: Finished difference Result 5892 states and 6051 transitions. [2018-10-15 15:07:35,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-15 15:07:35,367 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 580 [2018-10-15 15:07:35,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:35,390 INFO L225 Difference]: With dead ends: 5892 [2018-10-15 15:07:35,390 INFO L226 Difference]: Without dead ends: 5892 [2018-10-15 15:07:35,391 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-15 15:07:35,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2018-10-15 15:07:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5184. [2018-10-15 15:07:35,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5184 states. [2018-10-15 15:07:35,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 5327 transitions. [2018-10-15 15:07:35,480 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 5327 transitions. Word has length 580 [2018-10-15 15:07:35,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:35,481 INFO L481 AbstractCegarLoop]: Abstraction has 5184 states and 5327 transitions. [2018-10-15 15:07:35,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-15 15:07:35,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 5327 transitions. [2018-10-15 15:07:35,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2018-10-15 15:07:35,494 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:35,495 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:07:35,495 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:35,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:35,496 INFO L82 PathProgramCache]: Analyzing trace with hash -942408838, now seen corresponding path program 5 times [2018-10-15 15:07:35,497 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:07:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 907 proven. 151 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2018-10-15 15:07:37,126 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:07:37,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-15 15:07:37,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-15 15:07:37,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-15 15:07:37,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-10-15 15:07:37,127 INFO L87 Difference]: Start difference. First operand 5184 states and 5327 transitions. Second operand 11 states. [2018-10-15 15:07:38,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:07:38,318 INFO L93 Difference]: Finished difference Result 457 states and 458 transitions. [2018-10-15 15:07:38,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-15 15:07:38,319 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 719 [2018-10-15 15:07:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:07:38,320 INFO L225 Difference]: With dead ends: 457 [2018-10-15 15:07:38,320 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 15:07:38,321 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=213, Invalid=543, Unknown=0, NotChecked=0, Total=756 [2018-10-15 15:07:38,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 15:07:38,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 15:07:38,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 15:07:38,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 15:07:38,322 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 719 [2018-10-15 15:07:38,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:07:38,323 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 15:07:38,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-15 15:07:38,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 15:07:38,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 15:07:38,329 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:07:38 BoogieIcfgContainer [2018-10-15 15:07:38,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 15:07:38,330 INFO L168 Benchmark]: Toolchain (without parser) took 12338.44 ms. Allocated memory was 1.6 GB in the beginning and 2.0 GB in the end (delta: 440.9 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 283.5 MB). Peak memory consumption was 724.4 MB. Max. memory is 7.1 GB. [2018-10-15 15:07:38,331 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 15:07:38,332 INFO L168 Benchmark]: Boogie Preprocessor took 73.35 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 15:07:38,332 INFO L168 Benchmark]: RCFGBuilder took 1144.29 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-15 15:07:38,333 INFO L168 Benchmark]: TraceAbstraction took 11116.19 ms. Allocated memory was 1.6 GB in the beginning and 2.0 GB in the end (delta: 440.9 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 230.6 MB). Peak memory consumption was 671.6 MB. Max. memory is 7.1 GB. [2018-10-15 15:07:38,337 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 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.35 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1144.29 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11116.19 ms. Allocated memory was 1.6 GB in the beginning and 2.0 GB in the end (delta: 440.9 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 230.6 MB). Peak memory consumption was 671.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 467]: 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, 259 locations, 1 error locations. SAFE Result, 11.0s OverallTime, 13 OverallIterations, 8 TraceHistogramMax, 3.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3796 SDtfs, 2518 SDslu, 5763 SDs, 0 SdLazy, 434 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5184occurred in iteration=12, 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: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 1097 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 4467 NumberOfCodeBlocks, 4467 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4454 ConstructedInterpolants, 0 QuantifiedInterpolants, 7904544 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 1955/3077 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/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-15_15-07-38-351.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_15-07-38-351.csv Received shutdown request...