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/20181015-LoopsPathprograms/sum01_bug02_false-unreach-call_true-termination.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 12:44:54,234 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 12:44:54,238 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 12:44:54,254 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 12:44:54,254 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 12:44:54,255 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 12:44:54,257 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 12:44:54,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 12:44:54,261 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 12:44:54,262 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 12:44:54,263 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 12:44:54,264 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 12:44:54,264 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 12:44:54,266 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 12:44:54,268 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 12:44:54,275 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 12:44:54,275 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 12:44:54,281 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 12:44:54,283 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 12:44:54,287 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 12:44:54,288 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 12:44:54,289 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 12:44:54,293 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-15 12:44:54,293 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-15 12:44:54,294 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-15 12:44:54,294 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-15 12:44:54,295 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-15 12:44:54,297 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-15 12:44:54,298 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-15 12:44:54,301 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-15 12:44:54,301 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-15 12:44:54,301 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-15 12:44:54,306 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 12:44:54,318 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 12:44:54,318 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 12:44:54,319 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 12:44:54,319 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 12:44:54,319 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 12:44:54,319 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 12:44:54,320 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 12:44:54,320 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 12:44:54,321 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 12:44:54,321 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 12:44:54,321 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 12:44:54,321 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 12:44:54,321 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 12:44:54,322 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 12:44:54,322 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 12:44:54,374 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 12:44:54,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 12:44:54,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 12:44:54,393 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 12:44:54,393 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 12:44:54,396 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/sum01_bug02_false-unreach-call_true-termination.i_4.bpl [2018-10-15 12:44:54,396 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/sum01_bug02_false-unreach-call_true-termination.i_4.bpl' [2018-10-15 12:44:54,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 12:44:54,443 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-15 12:44:54,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 12:44:54,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 12:44:54,444 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 12:44:54,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:44:54" (1/1) ... [2018-10-15 12:44:54,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:44:54" (1/1) ... [2018-10-15 12:44:54,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:44:54" (1/1) ... [2018-10-15 12:44:54,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:44:54" (1/1) ... [2018-10-15 12:44:54,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:44:54" (1/1) ... [2018-10-15 12:44:54,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:44:54" (1/1) ... [2018-10-15 12:44:54,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:44:54" (1/1) ... [2018-10-15 12:44:54,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 12:44:54,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 12:44:54,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 12:44:54,485 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 12:44:54,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:44:54" (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 12:44:54,555 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 12:44:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 12:44:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 12:44:54,989 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 12:44:54,990 INFO L202 PluginConnector]: Adding new model sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:44:54 BoogieIcfgContainer [2018-10-15 12:44:54,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 12:44:54,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 12:44:54,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 12:44:54,994 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 12:44:54,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:44:54" (1/2) ... [2018-10-15 12:44:54,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721e5f3c and model type sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:44:54, skipping insertion in model container [2018-10-15 12:44:54,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:44:54" (2/2) ... [2018-10-15 12:44:54,998 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02_false-unreach-call_true-termination.i_4.bpl [2018-10-15 12:44:55,009 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 12:44:55,018 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 12:44:55,038 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 12:44:55,071 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 12:44:55,072 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 12:44:55,072 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 12:44:55,072 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 12:44:55,073 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 12:44:55,073 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 12:44:55,073 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 12:44:55,073 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 12:44:55,073 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 12:44:55,096 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-15 12:44:55,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-15 12:44:55,117 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:44:55,118 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:44:55,119 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:44:55,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:44:55,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1290430131, now seen corresponding path program 1 times [2018-10-15 12:44:55,197 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:44:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:44:55,444 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 12:44:55,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:44:55,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-15 12:44:55,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-15 12:44:55,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-15 12:44:55,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-15 12:44:55,467 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 6 states. [2018-10-15 12:44:55,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:44:55,629 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2018-10-15 12:44:55,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 12:44:55,632 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-10-15 12:44:55,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:44:55,643 INFO L225 Difference]: With dead ends: 38 [2018-10-15 12:44:55,644 INFO L226 Difference]: Without dead ends: 33 [2018-10-15 12:44:55,646 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-15 12:44:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-15 12:44:55,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2018-10-15 12:44:55,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-15 12:44:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-10-15 12:44:55,684 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 15 [2018-10-15 12:44:55,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:44:55,684 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-10-15 12:44:55,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-15 12:44:55,685 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-10-15 12:44:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-15 12:44:55,686 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:44:55,686 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] [2018-10-15 12:44:55,686 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:44:55,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:44:55,687 INFO L82 PathProgramCache]: Analyzing trace with hash 314476000, now seen corresponding path program 1 times [2018-10-15 12:44:55,688 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:44:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:44:56,168 WARN L179 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-10-15 12:44:56,435 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2018-10-15 12:44:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:44:56,674 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:44:56,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-15 12:44:56,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-15 12:44:56,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-15 12:44:56,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-15 12:44:56,677 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 11 states. [2018-10-15 12:44:57,309 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-15 12:44:57,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:44:57,447 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-10-15 12:44:57,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 12:44:57,454 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2018-10-15 12:44:57,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:44:57,458 INFO L225 Difference]: With dead ends: 60 [2018-10-15 12:44:57,458 INFO L226 Difference]: Without dead ends: 55 [2018-10-15 12:44:57,459 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-10-15 12:44:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-10-15 12:44:57,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2018-10-15 12:44:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-15 12:44:57,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-10-15 12:44:57,470 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 24 [2018-10-15 12:44:57,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:44:57,471 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-10-15 12:44:57,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-15 12:44:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-10-15 12:44:57,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-15 12:44:57,473 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:44:57,475 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-15 12:44:57,475 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:44:57,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:44:57,476 INFO L82 PathProgramCache]: Analyzing trace with hash 266695859, now seen corresponding path program 1 times [2018-10-15 12:44:57,477 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:44:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:44:57,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:44:57,593 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:44:57,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-15 12:44:57,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-15 12:44:57,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-15 12:44:57,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-10-15 12:44:57,595 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 8 states. [2018-10-15 12:44:57,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:44:57,772 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2018-10-15 12:44:57,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-15 12:44:57,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-10-15 12:44:57,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:44:57,779 INFO L225 Difference]: With dead ends: 38 [2018-10-15 12:44:57,779 INFO L226 Difference]: Without dead ends: 38 [2018-10-15 12:44:57,780 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-10-15 12:44:57,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-15 12:44:57,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-10-15 12:44:57,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-15 12:44:57,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2018-10-15 12:44:57,785 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 32 [2018-10-15 12:44:57,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:44:57,786 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2018-10-15 12:44:57,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-15 12:44:57,786 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2018-10-15 12:44:57,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-15 12:44:57,787 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:44:57,787 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:44:57,788 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:44:57,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:44:57,788 INFO L82 PathProgramCache]: Analyzing trace with hash -896856403, now seen corresponding path program 2 times [2018-10-15 12:44:57,789 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:44:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:44:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-15 12:44:58,339 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:44:58,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-15 12:44:58,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-15 12:44:58,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-15 12:44:58,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-10-15 12:44:58,341 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 14 states. [2018-10-15 12:44:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:44:58,840 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2018-10-15 12:44:58,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-15 12:44:58,844 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-10-15 12:44:58,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:44:58,845 INFO L225 Difference]: With dead ends: 54 [2018-10-15 12:44:58,846 INFO L226 Difference]: Without dead ends: 49 [2018-10-15 12:44:58,846 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2018-10-15 12:44:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-15 12:44:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2018-10-15 12:44:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-15 12:44:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2018-10-15 12:44:58,852 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 33 [2018-10-15 12:44:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:44:58,853 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2018-10-15 12:44:58,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-15 12:44:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-10-15 12:44:58,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-15 12:44:58,855 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:44:58,855 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:44:58,855 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:44:58,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:44:58,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1366745216, now seen corresponding path program 2 times [2018-10-15 12:44:58,857 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:44:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:44:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:44:59,054 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:44:59,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-15 12:44:59,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-15 12:44:59,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-15 12:44:59,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-10-15 12:44:59,055 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand 12 states. [2018-10-15 12:44:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:44:59,473 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2018-10-15 12:44:59,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-15 12:44:59,474 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-10-15 12:44:59,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:44:59,475 INFO L225 Difference]: With dead ends: 56 [2018-10-15 12:44:59,475 INFO L226 Difference]: Without dead ends: 56 [2018-10-15 12:44:59,476 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2018-10-15 12:44:59,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-10-15 12:44:59,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2018-10-15 12:44:59,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-10-15 12:44:59,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-10-15 12:44:59,482 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 41 [2018-10-15 12:44:59,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:44:59,482 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-10-15 12:44:59,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-15 12:44:59,483 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-10-15 12:44:59,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-15 12:44:59,484 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:44:59,484 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:44:59,485 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:44:59,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:44:59,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1810011309, now seen corresponding path program 3 times [2018-10-15 12:44:59,486 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:44:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:44:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:44:59,932 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:44:59,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-15 12:44:59,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-15 12:44:59,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-15 12:44:59,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2018-10-15 12:44:59,934 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 16 states. [2018-10-15 12:45:00,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:45:00,262 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2018-10-15 12:45:00,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-15 12:45:00,263 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 50 [2018-10-15 12:45:00,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:45:00,264 INFO L225 Difference]: With dead ends: 65 [2018-10-15 12:45:00,264 INFO L226 Difference]: Without dead ends: 65 [2018-10-15 12:45:00,265 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-10-15 12:45:00,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-10-15 12:45:00,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2018-10-15 12:45:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-10-15 12:45:00,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2018-10-15 12:45:00,271 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 50 [2018-10-15 12:45:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:45:00,272 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2018-10-15 12:45:00,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-15 12:45:00,272 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2018-10-15 12:45:00,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-15 12:45:00,273 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:45:00,274 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:45:00,274 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:45:00,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:45:00,274 INFO L82 PathProgramCache]: Analyzing trace with hash -608543264, now seen corresponding path program 4 times [2018-10-15 12:45:00,275 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:45:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:45:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 29 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:45:00,570 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:45:00,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-15 12:45:00,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-15 12:45:00,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-15 12:45:00,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-10-15 12:45:00,572 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 20 states. [2018-10-15 12:45:01,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:45:01,052 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2018-10-15 12:45:01,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-10-15 12:45:01,056 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 59 [2018-10-15 12:45:01,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:45:01,057 INFO L225 Difference]: With dead ends: 73 [2018-10-15 12:45:01,057 INFO L226 Difference]: Without dead ends: 73 [2018-10-15 12:45:01,058 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=307, Invalid=1025, Unknown=0, NotChecked=0, Total=1332 [2018-10-15 12:45:01,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-10-15 12:45:01,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-10-15 12:45:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-10-15 12:45:01,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2018-10-15 12:45:01,065 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 59 [2018-10-15 12:45:01,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:45:01,066 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2018-10-15 12:45:01,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-15 12:45:01,066 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2018-10-15 12:45:01,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-15 12:45:01,067 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:45:01,067 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:45:01,068 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:45:01,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:45:01,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1560345075, now seen corresponding path program 5 times [2018-10-15 12:45:01,069 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:45:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-15 12:45:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-15 12:45:01,131 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-15 12:45:01,181 INFO L202 PluginConnector]: Adding new model sum01_bug02_false-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:45:01 BoogieIcfgContainer [2018-10-15 12:45:01,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 12:45:01,183 INFO L168 Benchmark]: Toolchain (without parser) took 6741.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.0 GB in the end (delta: 425.7 MB). Peak memory consumption was 425.7 MB. Max. memory is 7.1 GB. [2018-10-15 12:45:01,185 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-15 12:45:01,185 INFO L168 Benchmark]: Boogie Preprocessor took 39.89 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. [2018-10-15 12:45:01,186 INFO L168 Benchmark]: RCFGBuilder took 506.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-15 12:45:01,188 INFO L168 Benchmark]: TraceAbstraction took 6190.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.0 GB in the end (delta: 404.5 MB). Peak memory consumption was 404.5 MB. Max. memory is 7.1 GB. [2018-10-15 12:45:01,193 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 0.20 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 39.89 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 506.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6190.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.0 GB in the end (delta: 404.5 MB). Peak memory consumption was 404.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 41]: assertion can be violated assertion can be violated We found a FailurePath: [L16] havoc main_#res; [L17] havoc main_#t~nondet0, main_~sn~0, main_~j~0, main_~n~0, main_#t~post2, main_#t~post1, main_~i~0; [L18] havoc main_~i~0; [L19] main_~j~0 := 10; VAL [main_~j~0=10] [L20] main_~n~0 := (if main_#t~nondet0 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 else main_#t~nondet0 % 4294967296 + -4294967296); VAL [main_#t~nondet0=6, main_~j~0=10, main_~n~0=6] [L21] havoc main_#t~nondet0; VAL [main_~j~0=10, main_~n~0=6] [L22] main_~sn~0 := 0; VAL [main_~j~0=10, main_~n~0=6, main_~sn~0=0] [L23] main_~i~0 := 1; VAL [main_~i~0=1, main_~j~0=10, main_~n~0=6, main_~sn~0=0] [L38] assume main_~i~0 <= main_~n~0; VAL [main_~i~0=1, main_~j~0=10, main_~n~0=6, main_~sn~0=0] [L45] assume main_~i~0 < main_~j~0; VAL [main_~i~0=1, main_~j~0=10, main_~n~0=6, main_~sn~0=0] [L46] main_~sn~0 := main_~sn~0 + 2; VAL [main_~i~0=1, main_~j~0=10, main_~n~0=6, main_~sn~0=2] [L52] main_#t~post2 := main_~j~0; VAL [main_#t~post2=10, main_~i~0=1, main_~j~0=10, main_~n~0=6, main_~sn~0=2] [L53] main_~j~0 := main_#t~post2 + -1; VAL [main_#t~post2=10, main_~i~0=1, main_~j~0=9, main_~n~0=6, main_~sn~0=2] [L54] havoc main_#t~post2; VAL [main_~i~0=1, main_~j~0=9, main_~n~0=6, main_~sn~0=2] [L55] main_#t~post1 := main_~i~0; VAL [main_#t~post1=1, main_~i~0=1, main_~j~0=9, main_~n~0=6, main_~sn~0=2] [L56] main_~i~0 := main_#t~post1 + 1; VAL [main_#t~post1=1, main_~i~0=2, main_~j~0=9, main_~n~0=6, main_~sn~0=2] [L57] havoc main_#t~post1; VAL [main_~i~0=2, main_~j~0=9, main_~n~0=6, main_~sn~0=2] [L38] assume main_~i~0 <= main_~n~0; VAL [main_~i~0=2, main_~j~0=9, main_~n~0=6, main_~sn~0=2] [L45] assume main_~i~0 < main_~j~0; VAL [main_~i~0=2, main_~j~0=9, main_~n~0=6, main_~sn~0=2] [L46] main_~sn~0 := main_~sn~0 + 2; VAL [main_~i~0=2, main_~j~0=9, main_~n~0=6, main_~sn~0=4] [L52] main_#t~post2 := main_~j~0; VAL [main_#t~post2=9, main_~i~0=2, main_~j~0=9, main_~n~0=6, main_~sn~0=4] [L53] main_~j~0 := main_#t~post2 + -1; VAL [main_#t~post2=9, main_~i~0=2, main_~j~0=8, main_~n~0=6, main_~sn~0=4] [L54] havoc main_#t~post2; VAL [main_~i~0=2, main_~j~0=8, main_~n~0=6, main_~sn~0=4] [L55] main_#t~post1 := main_~i~0; VAL [main_#t~post1=2, main_~i~0=2, main_~j~0=8, main_~n~0=6, main_~sn~0=4] [L56] main_~i~0 := main_#t~post1 + 1; VAL [main_#t~post1=2, main_~i~0=3, main_~j~0=8, main_~n~0=6, main_~sn~0=4] [L57] havoc main_#t~post1; VAL [main_~i~0=3, main_~j~0=8, main_~n~0=6, main_~sn~0=4] [L38] assume main_~i~0 <= main_~n~0; VAL [main_~i~0=3, main_~j~0=8, main_~n~0=6, main_~sn~0=4] [L45] assume main_~i~0 < main_~j~0; VAL [main_~i~0=3, main_~j~0=8, main_~n~0=6, main_~sn~0=4] [L46] main_~sn~0 := main_~sn~0 + 2; VAL [main_~i~0=3, main_~j~0=8, main_~n~0=6, main_~sn~0=6] [L52] main_#t~post2 := main_~j~0; VAL [main_#t~post2=8, main_~i~0=3, main_~j~0=8, main_~n~0=6, main_~sn~0=6] [L53] main_~j~0 := main_#t~post2 + -1; VAL [main_#t~post2=8, main_~i~0=3, main_~j~0=7, main_~n~0=6, main_~sn~0=6] [L54] havoc main_#t~post2; VAL [main_~i~0=3, main_~j~0=7, main_~n~0=6, main_~sn~0=6] [L55] main_#t~post1 := main_~i~0; VAL [main_#t~post1=3, main_~i~0=3, main_~j~0=7, main_~n~0=6, main_~sn~0=6] [L56] main_~i~0 := main_#t~post1 + 1; VAL [main_#t~post1=3, main_~i~0=4, main_~j~0=7, main_~n~0=6, main_~sn~0=6] [L57] havoc main_#t~post1; VAL [main_~i~0=4, main_~j~0=7, main_~n~0=6, main_~sn~0=6] [L38] assume main_~i~0 <= main_~n~0; VAL [main_~i~0=4, main_~j~0=7, main_~n~0=6, main_~sn~0=6] [L45] assume main_~i~0 < main_~j~0; VAL [main_~i~0=4, main_~j~0=7, main_~n~0=6, main_~sn~0=6] [L46] main_~sn~0 := main_~sn~0 + 2; VAL [main_~i~0=4, main_~j~0=7, main_~n~0=6, main_~sn~0=8] [L52] main_#t~post2 := main_~j~0; VAL [main_#t~post2=7, main_~i~0=4, main_~j~0=7, main_~n~0=6, main_~sn~0=8] [L53] main_~j~0 := main_#t~post2 + -1; VAL [main_#t~post2=7, main_~i~0=4, main_~j~0=6, main_~n~0=6, main_~sn~0=8] [L54] havoc main_#t~post2; VAL [main_~i~0=4, main_~j~0=6, main_~n~0=6, main_~sn~0=8] [L55] main_#t~post1 := main_~i~0; VAL [main_#t~post1=4, main_~i~0=4, main_~j~0=6, main_~n~0=6, main_~sn~0=8] [L56] main_~i~0 := main_#t~post1 + 1; VAL [main_#t~post1=4, main_~i~0=5, main_~j~0=6, main_~n~0=6, main_~sn~0=8] [L57] havoc main_#t~post1; VAL [main_~i~0=5, main_~j~0=6, main_~n~0=6, main_~sn~0=8] [L38] assume main_~i~0 <= main_~n~0; VAL [main_~i~0=5, main_~j~0=6, main_~n~0=6, main_~sn~0=8] [L45] assume main_~i~0 < main_~j~0; VAL [main_~i~0=5, main_~j~0=6, main_~n~0=6, main_~sn~0=8] [L46] main_~sn~0 := main_~sn~0 + 2; VAL [main_~i~0=5, main_~j~0=6, main_~n~0=6, main_~sn~0=10] [L52] main_#t~post2 := main_~j~0; VAL [main_#t~post2=6, main_~i~0=5, main_~j~0=6, main_~n~0=6, main_~sn~0=10] [L53] main_~j~0 := main_#t~post2 + -1; VAL [main_#t~post2=6, main_~i~0=5, main_~j~0=5, main_~n~0=6, main_~sn~0=10] [L54] havoc main_#t~post2; VAL [main_~i~0=5, main_~j~0=5, main_~n~0=6, main_~sn~0=10] [L55] main_#t~post1 := main_~i~0; VAL [main_#t~post1=5, main_~i~0=5, main_~j~0=5, main_~n~0=6, main_~sn~0=10] [L56] main_~i~0 := main_#t~post1 + 1; VAL [main_#t~post1=5, main_~i~0=6, main_~j~0=5, main_~n~0=6, main_~sn~0=10] [L57] havoc main_#t~post1; VAL [main_~i~0=6, main_~j~0=5, main_~n~0=6, main_~sn~0=10] [L38] assume main_~i~0 <= main_~n~0; VAL [main_~i~0=6, main_~j~0=5, main_~n~0=6, main_~sn~0=10] [L49] assume !(main_~i~0 < main_~j~0); VAL [main_~i~0=6, main_~j~0=5, main_~n~0=6, main_~sn~0=10] [L52] main_#t~post2 := main_~j~0; VAL [main_#t~post2=5, main_~i~0=6, main_~j~0=5, main_~n~0=6, main_~sn~0=10] [L53] main_~j~0 := main_#t~post2 + -1; VAL [main_#t~post2=5, main_~i~0=6, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L54] havoc main_#t~post2; VAL [main_~i~0=6, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L55] main_#t~post1 := main_~i~0; VAL [main_#t~post1=6, main_~i~0=6, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L56] main_~i~0 := main_#t~post1 + 1; VAL [main_#t~post1=6, main_~i~0=7, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L57] havoc main_#t~post1; VAL [main_~i~0=7, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L30] assume !(main_~i~0 <= main_~n~0); VAL [main_~i~0=7, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L31] assume (0 == main_~sn~0 || 2 * main_~n~0 == main_~sn~0) || (!(0 == main_~sn~0) && !(2 * main_~n~0 == main_~sn~0)); VAL [main_~i~0=7, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L32] __VERIFIER_assert_#in~cond := (if main_~sn~0 == 2 * main_~n~0 || main_~sn~0 == 0 then 1 else 0); VAL [__VERIFIER_assert_#in~cond=0, main_~i~0=7, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L33] havoc __VERIFIER_assert_~cond; VAL [__VERIFIER_assert_#in~cond=0, main_~i~0=7, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L34] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~i~0=7, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L35] assume 0 == __VERIFIER_assert_~cond; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~i~0=7, main_~j~0=4, main_~n~0=6, main_~sn~0=10] [L41] assert false; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~i~0=7, main_~j~0=4, main_~n~0=6, main_~sn~0=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. UNSAFE Result, 6.1s OverallTime, 8 OverallIterations, 6 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 136 SDtfs, 234 SDslu, 812 SDs, 0 SdLazy, 760 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 30 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 322 NumberOfCodeBlocks, 322 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 247 ConstructedInterpolants, 0 QuantifiedInterpolants, 45547 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 75/196 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_bug02_false-unreach-call_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-15_12-45-01-214.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_bug02_false-unreach-call_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_12-45-01-214.csv Received shutdown request...