java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label48_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 15:50:44,386 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 15:50:44,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 15:50:44,403 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 15:50:44,403 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 15:50:44,404 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 15:50:44,405 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 15:50:44,409 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 15:50:44,410 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 15:50:44,412 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 15:50:44,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 15:50:44,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 15:50:44,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 15:50:44,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 15:50:44,418 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 15:50:44,419 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 15:50:44,420 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 15:50:44,430 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 15:50:44,432 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 15:50:44,433 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 15:50:44,434 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 15:50:44,435 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 15:50:44,440 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 15:50:44,440 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 15:50:44,440 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 15:50:44,441 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 15:50:44,444 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 15:50:44,445 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 15:50:44,446 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 15:50:44,450 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 15:50:44,451 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 15:50:44,452 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-22 15:50:44,452 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-22 15:50:44,452 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-22 15:50:44,453 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-22 15:50:44,454 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-22 15:50:44,454 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 15:50:44,477 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 15:50:44,477 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 15:50:44,478 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 15:50:44,478 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 15:50:44,479 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 15:50:44,479 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 15:50:44,479 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 15:50:44,480 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 15:50:44,484 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 15:50:44,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 15:50:44,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 15:50:44,485 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 15:50:44,485 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 15:50:44,485 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 15:50:44,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 15:50:44,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 15:50:44,486 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 15:50:44,486 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 15:50:44,486 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 15:50:44,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 15:50:44,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 15:50:44,486 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 15:50:44,487 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 15:50:44,487 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 15:50:44,487 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 15:50:44,487 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 15:50:44,487 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 15:50:44,487 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 15:50:44,489 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 15:50:44,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 15:50:44,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 15:50:44,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 15:50:44,561 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 15:50:44,561 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 15:50:44,562 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label48_true-unreach-call.c [2018-07-22 15:50:44,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab9c3f66/f838e77169de4063b065d8fdf4d041fa/FLAG435fb6063 [2018-07-22 15:50:45,568 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 15:50:45,569 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label48_true-unreach-call.c [2018-07-22 15:50:45,639 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab9c3f66/f838e77169de4063b065d8fdf4d041fa/FLAG435fb6063 [2018-07-22 15:50:45,662 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab9c3f66/f838e77169de4063b065d8fdf4d041fa [2018-07-22 15:50:45,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 15:50:45,681 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 15:50:45,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 15:50:45,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 15:50:45,692 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 15:50:45,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:50:45" (1/1) ... [2018-07-22 15:50:45,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e40129b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:45, skipping insertion in model container [2018-07-22 15:50:45,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:50:45" (1/1) ... [2018-07-22 15:50:46,176 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 15:50:48,236 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 15:50:48,257 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 15:50:49,697 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 15:50:50,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50 WrapperNode [2018-07-22 15:50:50,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 15:50:50,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 15:50:50,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 15:50:50,581 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 15:50:50,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... [2018-07-22 15:50:50,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... [2018-07-22 15:50:52,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 15:50:52,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 15:50:52,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 15:50:52,625 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 15:50:52,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... [2018-07-22 15:50:52,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... [2018-07-22 15:50:52,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... [2018-07-22 15:50:52,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... [2018-07-22 15:50:53,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... [2018-07-22 15:50:53,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... [2018-07-22 15:50:53,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... [2018-07-22 15:50:53,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 15:50:53,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 15:50:53,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 15:50:53,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 15:50:53,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 15:50:53,567 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 15:50:53,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 15:50:53,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 15:51:12,582 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 15:51:12,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:51:12 BoogieIcfgContainer [2018-07-22 15:51:12,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 15:51:12,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 15:51:12,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 15:51:12,588 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 15:51:12,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 03:50:45" (1/3) ... [2018-07-22 15:51:12,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309846bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:51:12, skipping insertion in model container [2018-07-22 15:51:12,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:50:50" (2/3) ... [2018-07-22 15:51:12,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309846bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:51:12, skipping insertion in model container [2018-07-22 15:51:12,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:51:12" (3/3) ... [2018-07-22 15:51:12,592 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label48_true-unreach-call.c [2018-07-22 15:51:12,600 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 15:51:12,609 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 15:51:12,671 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 15:51:12,672 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 15:51:12,672 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 15:51:12,672 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 15:51:12,672 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 15:51:12,672 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 15:51:12,672 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 15:51:12,672 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 15:51:12,672 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 15:51:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-07-22 15:51:12,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-07-22 15:51:12,751 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:51:12,752 INFO L358 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] [2018-07-22 15:51:12,752 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:51:12,758 INFO L82 PathProgramCache]: Analyzing trace with hash -717159398, now seen corresponding path program 1 times [2018-07-22 15:51:12,759 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:51:12,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:51:12,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:51:12,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:51:12,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:51:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:51:13,363 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-22 15:51:13,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 15:51:13,656 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:51:13,656 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:51:13,659 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 15:51:13,674 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 15:51:13,675 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-22 15:51:13,677 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 5 states. [2018-07-22 15:51:13,892 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-22 15:51:37,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:51:37,223 INFO L93 Difference]: Finished difference Result 7660 states and 14775 transitions. [2018-07-22 15:51:37,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 15:51:37,224 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2018-07-22 15:51:37,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:51:37,282 INFO L225 Difference]: With dead ends: 7660 [2018-07-22 15:51:37,283 INFO L226 Difference]: Without dead ends: 5901 [2018-07-22 15:51:37,293 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-22 15:51:37,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2018-07-22 15:51:37,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 5898. [2018-07-22 15:51:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5898 states. [2018-07-22 15:51:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 9655 transitions. [2018-07-22 15:51:37,564 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 9655 transitions. Word has length 66 [2018-07-22 15:51:37,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:51:37,565 INFO L471 AbstractCegarLoop]: Abstraction has 5898 states and 9655 transitions. [2018-07-22 15:51:37,566 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 15:51:37,566 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 9655 transitions. [2018-07-22 15:51:37,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-07-22 15:51:37,591 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:51:37,592 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:51:37,592 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:51:37,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1819213827, now seen corresponding path program 1 times [2018-07-22 15:51:37,592 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:51:37,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:51:37,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:51:37,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:51:37,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:51:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:51:38,389 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-22 15:51:38,889 WARN L169 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2018-07-22 15:51:39,339 WARN L169 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-07-22 15:51:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-07-22 15:51:39,704 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:51:39,704 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-22 15:51:39,706 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 15:51:39,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 15:51:39,707 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 15:51:39,707 INFO L87 Difference]: Start difference. First operand 5898 states and 9655 transitions. Second operand 7 states. [2018-07-22 15:52:10,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:52:10,303 INFO L93 Difference]: Finished difference Result 18642 states and 31737 transitions. [2018-07-22 15:52:10,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 15:52:10,304 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 342 [2018-07-22 15:52:10,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:52:10,363 INFO L225 Difference]: With dead ends: 18642 [2018-07-22 15:52:10,363 INFO L226 Difference]: Without dead ends: 12746 [2018-07-22 15:52:10,373 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-07-22 15:52:10,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12746 states. [2018-07-22 15:52:10,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12746 to 10011. [2018-07-22 15:52:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10011 states. [2018-07-22 15:52:10,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10011 states to 10011 states and 13994 transitions. [2018-07-22 15:52:10,619 INFO L78 Accepts]: Start accepts. Automaton has 10011 states and 13994 transitions. Word has length 342 [2018-07-22 15:52:10,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:52:10,623 INFO L471 AbstractCegarLoop]: Abstraction has 10011 states and 13994 transitions. [2018-07-22 15:52:10,623 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 15:52:10,624 INFO L276 IsEmpty]: Start isEmpty. Operand 10011 states and 13994 transitions. [2018-07-22 15:52:10,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-07-22 15:52:10,630 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:52:10,630 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:52:10,631 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:52:10,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1414872297, now seen corresponding path program 1 times [2018-07-22 15:52:10,631 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:52:10,632 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:52:10,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:52:10,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:52:10,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:52:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:52:11,281 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 127 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 15:52:11,281 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 15:52:11,281 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 15:52:11,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:52:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:52:11,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 15:52:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 15:52:11,715 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 15:52:11,716 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-22 15:52:11,716 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 15:52:11,717 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 15:52:11,717 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 15:52:11,717 INFO L87 Difference]: Start difference. First operand 10011 states and 13994 transitions. Second operand 5 states. [2018-07-22 15:52:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:52:40,808 INFO L93 Difference]: Finished difference Result 42268 states and 64347 transitions. [2018-07-22 15:52:40,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 15:52:40,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 370 [2018-07-22 15:52:40,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:52:40,914 INFO L225 Difference]: With dead ends: 42268 [2018-07-22 15:52:40,914 INFO L226 Difference]: Without dead ends: 28159 [2018-07-22 15:52:40,932 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 15:52:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28159 states. [2018-07-22 15:52:41,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28159 to 28083. [2018-07-22 15:52:41,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28083 states. [2018-07-22 15:52:41,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28083 states to 28083 states and 36082 transitions. [2018-07-22 15:52:41,513 INFO L78 Accepts]: Start accepts. Automaton has 28083 states and 36082 transitions. Word has length 370 [2018-07-22 15:52:41,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:52:41,514 INFO L471 AbstractCegarLoop]: Abstraction has 28083 states and 36082 transitions. [2018-07-22 15:52:41,514 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 15:52:41,514 INFO L276 IsEmpty]: Start isEmpty. Operand 28083 states and 36082 transitions. [2018-07-22 15:52:41,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2018-07-22 15:52:41,521 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:52:41,521 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:52:41,522 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:52:41,522 INFO L82 PathProgramCache]: Analyzing trace with hash 612100939, now seen corresponding path program 1 times [2018-07-22 15:52:41,522 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:52:41,522 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:52:41,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:52:41,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:52:41,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:52:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:52:41,939 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 15:52:41,940 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:52:41,940 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:52:41,941 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:52:41,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:52:41,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:52:41,941 INFO L87 Difference]: Start difference. First operand 28083 states and 36082 transitions. Second operand 4 states. [2018-07-22 15:52:58,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:52:58,055 INFO L93 Difference]: Finished difference Result 72576 states and 94490 transitions. [2018-07-22 15:52:58,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:52:58,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 372 [2018-07-22 15:52:58,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:52:58,132 INFO L225 Difference]: With dead ends: 72576 [2018-07-22 15:52:58,134 INFO L226 Difference]: Without dead ends: 45861 [2018-07-22 15:52:58,170 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:52:58,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45861 states. [2018-07-22 15:52:58,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45861 to 44486. [2018-07-22 15:52:58,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44486 states. [2018-07-22 15:52:58,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44486 states to 44486 states and 54182 transitions. [2018-07-22 15:52:58,843 INFO L78 Accepts]: Start accepts. Automaton has 44486 states and 54182 transitions. Word has length 372 [2018-07-22 15:52:58,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:52:58,844 INFO L471 AbstractCegarLoop]: Abstraction has 44486 states and 54182 transitions. [2018-07-22 15:52:58,844 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:52:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand 44486 states and 54182 transitions. [2018-07-22 15:52:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2018-07-22 15:52:58,855 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:52:58,855 INFO L358 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, 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, 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] [2018-07-22 15:52:58,855 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:52:58,856 INFO L82 PathProgramCache]: Analyzing trace with hash 904064517, now seen corresponding path program 1 times [2018-07-22 15:52:58,856 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:52:58,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:52:58,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:52:58,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:52:58,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:52:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:52:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 262 proven. 4 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-07-22 15:52:59,563 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 15:52:59,563 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-07-22 15:52:59,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 15:52:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:52:59,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 15:53:00,140 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-07-22 15:53:00,160 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 15:53:00,160 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-22 15:53:00,162 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 15:53:00,162 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 15:53:00,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 15:53:00,163 INFO L87 Difference]: Start difference. First operand 44486 states and 54182 transitions. Second operand 5 states. [2018-07-22 15:53:18,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:53:18,797 INFO L93 Difference]: Finished difference Result 232557 states and 285172 transitions. [2018-07-22 15:53:18,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 15:53:18,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 459 [2018-07-22 15:53:18,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:53:19,053 INFO L225 Difference]: With dead ends: 232557 [2018-07-22 15:53:19,053 INFO L226 Difference]: Without dead ends: 183965 [2018-07-22 15:53:19,114 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 15:53:19,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183965 states. [2018-07-22 15:53:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183965 to 136001. [2018-07-22 15:53:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136001 states. [2018-07-22 15:53:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136001 states to 136001 states and 148767 transitions. [2018-07-22 15:53:25,113 INFO L78 Accepts]: Start accepts. Automaton has 136001 states and 148767 transitions. Word has length 459 [2018-07-22 15:53:25,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:53:25,113 INFO L471 AbstractCegarLoop]: Abstraction has 136001 states and 148767 transitions. [2018-07-22 15:53:25,113 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 15:53:25,114 INFO L276 IsEmpty]: Start isEmpty. Operand 136001 states and 148767 transitions. [2018-07-22 15:53:25,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2018-07-22 15:53:25,191 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:53:25,192 INFO L358 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:53:25,192 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:53:25,192 INFO L82 PathProgramCache]: Analyzing trace with hash 874780362, now seen corresponding path program 1 times [2018-07-22 15:53:25,192 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:53:25,193 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:53:25,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:53:25,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:53:25,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:53:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:53:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 1122 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2018-07-22 15:53:27,211 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:53:27,211 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 15:53:27,212 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 15:53:27,212 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 15:53:27,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 15:53:27,213 INFO L87 Difference]: Start difference. First operand 136001 states and 148767 transitions. Second operand 5 states. [2018-07-22 15:53:44,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:53:44,175 INFO L93 Difference]: Finished difference Result 452485 states and 500075 transitions. [2018-07-22 15:53:44,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 15:53:44,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1160 [2018-07-22 15:53:44,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:53:44,494 INFO L225 Difference]: With dead ends: 452485 [2018-07-22 15:53:44,494 INFO L226 Difference]: Without dead ends: 317852 [2018-07-22 15:53:44,552 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 15:53:44,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317852 states. [2018-07-22 15:53:47,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317852 to 265777. [2018-07-22 15:53:47,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265777 states. [2018-07-22 15:53:47,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265777 states to 265777 states and 290441 transitions. [2018-07-22 15:53:47,627 INFO L78 Accepts]: Start accepts. Automaton has 265777 states and 290441 transitions. Word has length 1160 [2018-07-22 15:53:47,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:53:47,629 INFO L471 AbstractCegarLoop]: Abstraction has 265777 states and 290441 transitions. [2018-07-22 15:53:47,629 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 15:53:47,629 INFO L276 IsEmpty]: Start isEmpty. Operand 265777 states and 290441 transitions. [2018-07-22 15:53:47,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1252 [2018-07-22 15:53:47,690 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:53:47,691 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 15:53:47,692 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:53:47,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1191105550, now seen corresponding path program 1 times [2018-07-22 15:53:47,693 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:53:47,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:53:47,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:53:47,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:53:47,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:53:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:53:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1491 backedges. 1208 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2018-07-22 15:53:54,069 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:53:54,069 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:53:54,070 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:53:54,070 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:53:54,071 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:53:54,071 INFO L87 Difference]: Start difference. First operand 265777 states and 290441 transitions. Second operand 4 states. [2018-07-22 15:54:05,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:54:05,363 INFO L93 Difference]: Finished difference Result 569793 states and 622491 transitions. [2018-07-22 15:54:05,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:54:05,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1251 [2018-07-22 15:54:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:54:05,663 INFO L225 Difference]: With dead ends: 569793 [2018-07-22 15:54:05,663 INFO L226 Difference]: Without dead ends: 295810 [2018-07-22 15:54:05,732 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:54:05,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295810 states. [2018-07-22 15:54:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295810 to 295795. [2018-07-22 15:54:09,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295795 states. [2018-07-22 15:54:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295795 states to 295795 states and 314328 transitions. [2018-07-22 15:54:09,362 INFO L78 Accepts]: Start accepts. Automaton has 295795 states and 314328 transitions. Word has length 1251 [2018-07-22 15:54:09,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:54:09,364 INFO L471 AbstractCegarLoop]: Abstraction has 295795 states and 314328 transitions. [2018-07-22 15:54:09,364 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:54:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 295795 states and 314328 transitions. [2018-07-22 15:54:09,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1495 [2018-07-22 15:54:09,392 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:54:09,393 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 15:54:09,393 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:54:09,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1403764133, now seen corresponding path program 1 times [2018-07-22 15:54:09,394 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:54:09,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:54:09,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:54:09,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:54:09,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:54:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:54:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2018-07-22 15:54:18,629 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:54:18,630 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:54:18,631 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:54:18,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:54:18,631 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:54:18,631 INFO L87 Difference]: Start difference. First operand 295795 states and 314328 transitions. Second operand 4 states. Received shutdown request... [2018-07-22 15:54:19,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:54:19,715 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 15:54:19,719 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 15:54:19,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 03:54:19 BoogieIcfgContainer [2018-07-22 15:54:19,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 15:54:19,721 INFO L168 Benchmark]: Toolchain (without parser) took 214046.47 ms. Allocated memory was 302.5 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 221.7 MB in the beginning and 2.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 5.3 GB. [2018-07-22 15:54:19,722 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.5 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 15:54:19,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4896.43 ms. Allocated memory was 302.5 MB in the beginning and 391.1 MB in the end (delta: 88.6 MB). Free memory was 221.7 MB in the beginning and 120.9 MB in the end (delta: 100.7 MB). Peak memory consumption was 219.3 MB. Max. memory is 5.3 GB. [2018-07-22 15:54:19,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 2044.40 ms. Allocated memory was 391.1 MB in the beginning and 683.7 MB in the end (delta: 292.6 MB). Free memory was 120.9 MB in the beginning and 401.0 MB in the end (delta: -280.1 MB). Peak memory consumption was 107.8 MB. Max. memory is 5.3 GB. [2018-07-22 15:54:19,724 INFO L168 Benchmark]: Boogie Preprocessor took 883.23 ms. Allocated memory was 683.7 MB in the beginning and 861.4 MB in the end (delta: 177.7 MB). Free memory was 401.0 MB in the beginning and 570.8 MB in the end (delta: -169.8 MB). Peak memory consumption was 162.4 MB. Max. memory is 5.3 GB. [2018-07-22 15:54:19,725 INFO L168 Benchmark]: RCFGBuilder took 19074.79 ms. Allocated memory was 861.4 MB in the beginning and 1.2 GB in the end (delta: 350.2 MB). Free memory was 570.8 MB in the beginning and 814.2 MB in the end (delta: -243.4 MB). Peak memory consumption was 556.9 MB. Max. memory is 5.3 GB. [2018-07-22 15:54:19,725 INFO L168 Benchmark]: TraceAbstraction took 187135.62 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 1.9 GB). Free memory was 814.2 MB in the beginning and 2.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-07-22 15:54:19,730 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 302.5 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4896.43 ms. Allocated memory was 302.5 MB in the beginning and 391.1 MB in the end (delta: 88.6 MB). Free memory was 221.7 MB in the beginning and 120.9 MB in the end (delta: 100.7 MB). Peak memory consumption was 219.3 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 2044.40 ms. Allocated memory was 391.1 MB in the beginning and 683.7 MB in the end (delta: 292.6 MB). Free memory was 120.9 MB in the beginning and 401.0 MB in the end (delta: -280.1 MB). Peak memory consumption was 107.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 883.23 ms. Allocated memory was 683.7 MB in the beginning and 861.4 MB in the end (delta: 177.7 MB). Free memory was 401.0 MB in the beginning and 570.8 MB in the end (delta: -169.8 MB). Peak memory consumption was 162.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 19074.79 ms. Allocated memory was 861.4 MB in the beginning and 1.2 GB in the end (delta: 350.2 MB). Free memory was 570.8 MB in the beginning and 814.2 MB in the end (delta: -243.4 MB). Peak memory consumption was 556.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 187135.62 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 1.9 GB). Free memory was 814.2 MB in the beginning and 2.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 211]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 211). Cancelled while BasicCegarLoop was constructing difference of abstraction (295795states) and interpolant automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (1945 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 187.0s OverallTime, 8 OverallIterations, 6 TraceHistogramMax, 148.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9565 SDtfs, 52013 SDslu, 3606 SDs, 0 SdLazy, 83357 SolverSat, 29039 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 124.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 885 GetRequests, 843 SyntacticMatches, 11 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295795occurred 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: 14.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 104243 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 6343 NumberOfCodeBlocks, 6343 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 6333 ConstructedInterpolants, 0 QuantifiedInterpolants, 9467218 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1042 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 6066/6135 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label48_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_15-54-19-749.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label48_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_15-54-19-749.csv Completed graceful shutdown