java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label06_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:53:42,548 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:53:42,550 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:53:42,562 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:53:42,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:53:42,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:53:42,565 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:53:42,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:53:42,568 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:53:42,569 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:53:42,570 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:53:42,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:53:42,571 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:53:42,572 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:53:42,574 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:53:42,574 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:53:42,575 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:53:42,577 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:53:42,579 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:53:42,581 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:53:42,582 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:53:42,583 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:53:42,586 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:53:42,586 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:53:42,587 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:53:42,588 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:53:42,589 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:53:42,589 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:53:42,590 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:53:42,592 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:53:42,592 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:53:42,593 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:53:42,599 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:53:42,623 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:53:42,624 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:53:42,624 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:53:42,625 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:53:42,625 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:53:42,625 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:53:42,626 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:53:42,627 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:53:42,627 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:53:42,627 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:53:42,627 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:53:42,628 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:53:42,628 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:53:42,628 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:53:42,628 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:53:42,628 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:53:42,629 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:53:42,629 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:53:42,629 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:53:42,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:53:42,629 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:53:42,630 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:53:42,630 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:53:42,630 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:53:42,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:53:42,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:53:42,630 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:53:42,632 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:53:42,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:53:42,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:53:42,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:53:42,708 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:53:42,708 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:53:42,709 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label06_true-unreach-call.c [2018-10-24 14:53:42,778 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/927a15aed/5f6cde22fb1b4213b595d918a7e2ab31/FLAG17ccb00e5 [2018-10-24 14:53:43,420 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:53:43,421 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label06_true-unreach-call.c [2018-10-24 14:53:43,444 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/927a15aed/5f6cde22fb1b4213b595d918a7e2ab31/FLAG17ccb00e5 [2018-10-24 14:53:43,464 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/927a15aed/5f6cde22fb1b4213b595d918a7e2ab31 [2018-10-24 14:53:43,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:53:43,477 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:53:43,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:53:43,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:53:43,484 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:53:43,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:53:43" (1/1) ... [2018-10-24 14:53:43,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b792d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:43, skipping insertion in model container [2018-10-24 14:53:43,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:53:43" (1/1) ... [2018-10-24 14:53:43,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:53:43,605 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:53:44,341 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:53:44,348 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:53:44,613 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:53:44,636 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:53:44,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44 WrapperNode [2018-10-24 14:53:44,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:53:44,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:53:44,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:53:44,638 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:53:44,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... [2018-10-24 14:53:44,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... [2018-10-24 14:53:44,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:53:44,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:53:44,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:53:44,946 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:53:44,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... [2018-10-24 14:53:44,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... [2018-10-24 14:53:44,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... [2018-10-24 14:53:44,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... [2018-10-24 14:53:45,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... [2018-10-24 14:53:45,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... [2018-10-24 14:53:45,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... [2018-10-24 14:53:45,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:53:45,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:53:45,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:53:45,082 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:53:45,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 14:53:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:53:45,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:53:45,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:53:50,783 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:53:50,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:53:50 BoogieIcfgContainer [2018-10-24 14:53:50,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:53:50,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:53:50,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:53:50,789 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:53:50,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:53:43" (1/3) ... [2018-10-24 14:53:50,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f220e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:53:50, skipping insertion in model container [2018-10-24 14:53:50,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:53:44" (2/3) ... [2018-10-24 14:53:50,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f220e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:53:50, skipping insertion in model container [2018-10-24 14:53:50,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:53:50" (3/3) ... [2018-10-24 14:53:50,793 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label06_true-unreach-call.c [2018-10-24 14:53:50,802 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:53:50,811 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:53:50,829 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:53:50,868 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:53:50,869 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:53:50,869 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:53:50,869 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:53:50,869 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:53:50,869 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:53:50,870 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:53:50,870 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:53:50,870 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:53:50,896 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-10-24 14:53:50,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-10-24 14:53:50,916 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:53:50,917 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:53:50,920 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:53:50,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:53:50,927 INFO L82 PathProgramCache]: Analyzing trace with hash -696038692, now seen corresponding path program 1 times [2018-10-24 14:53:50,929 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:53:50,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:53:50,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:53:50,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:53:50,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:53:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:53:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:53:51,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:53:51,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:53:51,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:53:51,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:53:51,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:53:51,874 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-10-24 14:53:55,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:53:55,735 INFO L93 Difference]: Finished difference Result 1027 states and 1865 transitions. [2018-10-24 14:53:55,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:53:55,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 170 [2018-10-24 14:53:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:53:55,765 INFO L225 Difference]: With dead ends: 1027 [2018-10-24 14:53:55,765 INFO L226 Difference]: Without dead ends: 717 [2018-10-24 14:53:55,773 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:53:55,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2018-10-24 14:53:55,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 715. [2018-10-24 14:53:55,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2018-10-24 14:53:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1145 transitions. [2018-10-24 14:53:55,868 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1145 transitions. Word has length 170 [2018-10-24 14:53:55,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:53:55,869 INFO L481 AbstractCegarLoop]: Abstraction has 715 states and 1145 transitions. [2018-10-24 14:53:55,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:53:55,869 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1145 transitions. [2018-10-24 14:53:55,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-10-24 14:53:55,879 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:53:55,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:53:55,880 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:53:55,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:53:55,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1090071323, now seen corresponding path program 1 times [2018-10-24 14:53:55,881 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:53:55,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:53:55,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:53:55,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:53:55,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:53:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:53:56,021 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:53:56,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:53:56,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:53:56,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:53:56,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:53:56,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:53:56,027 INFO L87 Difference]: Start difference. First operand 715 states and 1145 transitions. Second operand 3 states. [2018-10-24 14:53:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:53:58,256 INFO L93 Difference]: Finished difference Result 2058 states and 3347 transitions. [2018-10-24 14:53:58,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:53:58,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2018-10-24 14:53:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:53:58,265 INFO L225 Difference]: With dead ends: 2058 [2018-10-24 14:53:58,265 INFO L226 Difference]: Without dead ends: 1345 [2018-10-24 14:53:58,269 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:53:58,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2018-10-24 14:53:58,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1331. [2018-10-24 14:53:58,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1331 states. [2018-10-24 14:53:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2076 transitions. [2018-10-24 14:53:58,314 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2076 transitions. Word has length 179 [2018-10-24 14:53:58,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:53:58,315 INFO L481 AbstractCegarLoop]: Abstraction has 1331 states and 2076 transitions. [2018-10-24 14:53:58,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:53:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2076 transitions. [2018-10-24 14:53:58,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-10-24 14:53:58,321 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:53:58,322 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2018-10-24 14:53:58,322 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:53:58,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:53:58,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1031939488, now seen corresponding path program 1 times [2018-10-24 14:53:58,323 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:53:58,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:53:58,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:53:58,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:53:58,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:53:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:53:58,473 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-24 14:53:58,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:53:58,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:53:58,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:53:58,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:53:58,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:53:58,475 INFO L87 Difference]: Start difference. First operand 1331 states and 2076 transitions. Second operand 3 states. [2018-10-24 14:54:01,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:01,170 INFO L93 Difference]: Finished difference Result 3977 states and 6209 transitions. [2018-10-24 14:54:01,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:01,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2018-10-24 14:54:01,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:01,186 INFO L225 Difference]: With dead ends: 3977 [2018-10-24 14:54:01,186 INFO L226 Difference]: Without dead ends: 2648 [2018-10-24 14:54:01,189 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:01,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2018-10-24 14:54:01,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2645. [2018-10-24 14:54:01,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2018-10-24 14:54:01,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 4120 transitions. [2018-10-24 14:54:01,259 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 4120 transitions. Word has length 193 [2018-10-24 14:54:01,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:01,260 INFO L481 AbstractCegarLoop]: Abstraction has 2645 states and 4120 transitions. [2018-10-24 14:54:01,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:01,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 4120 transitions. [2018-10-24 14:54:01,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-10-24 14:54:01,268 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:01,269 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2018-10-24 14:54:01,269 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:01,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:01,269 INFO L82 PathProgramCache]: Analyzing trace with hash 133312332, now seen corresponding path program 1 times [2018-10-24 14:54:01,269 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:01,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:01,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:01,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:01,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-10-24 14:54:01,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:01,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:54:01,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:01,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:01,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:01,441 INFO L87 Difference]: Start difference. First operand 2645 states and 4120 transitions. Second operand 3 states. [2018-10-24 14:54:02,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:02,176 INFO L93 Difference]: Finished difference Result 5250 states and 8186 transitions. [2018-10-24 14:54:02,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:02,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2018-10-24 14:54:02,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:02,190 INFO L225 Difference]: With dead ends: 5250 [2018-10-24 14:54:02,191 INFO L226 Difference]: Without dead ends: 2607 [2018-10-24 14:54:02,195 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2018-10-24 14:54:02,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2607. [2018-10-24 14:54:02,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2607 states. [2018-10-24 14:54:02,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3992 transitions. [2018-10-24 14:54:02,246 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3992 transitions. Word has length 201 [2018-10-24 14:54:02,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:02,247 INFO L481 AbstractCegarLoop]: Abstraction has 2607 states and 3992 transitions. [2018-10-24 14:54:02,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:02,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3992 transitions. [2018-10-24 14:54:02,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-10-24 14:54:02,252 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:02,253 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:02,253 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:02,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:02,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1347645992, now seen corresponding path program 1 times [2018-10-24 14:54:02,254 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:02,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:02,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:02,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:02,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:02,763 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 14:54:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:54:02,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:02,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:54:02,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:54:02,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:54:02,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:54:02,835 INFO L87 Difference]: Start difference. First operand 2607 states and 3992 transitions. Second operand 5 states. [2018-10-24 14:54:07,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:07,417 INFO L93 Difference]: Finished difference Result 6279 states and 9778 transitions. [2018-10-24 14:54:07,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:54:07,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2018-10-24 14:54:07,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:07,437 INFO L225 Difference]: With dead ends: 6279 [2018-10-24 14:54:07,437 INFO L226 Difference]: Without dead ends: 3674 [2018-10-24 14:54:07,441 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:54:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2018-10-24 14:54:07,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3015. [2018-10-24 14:54:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3015 states. [2018-10-24 14:54:07,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 4612 transitions. [2018-10-24 14:54:07,499 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 4612 transitions. Word has length 210 [2018-10-24 14:54:07,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:07,500 INFO L481 AbstractCegarLoop]: Abstraction has 3015 states and 4612 transitions. [2018-10-24 14:54:07,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:54:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 4612 transitions. [2018-10-24 14:54:07,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-10-24 14:54:07,507 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:07,507 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:07,508 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:07,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:07,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1621362332, now seen corresponding path program 1 times [2018-10-24 14:54:07,508 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:07,508 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:07,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:07,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:07,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:07,831 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 62 proven. 10 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-10-24 14:54:07,832 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:54:07,832 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 14:54:07,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:08,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:54:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-24 14:54:08,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:54:08,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2018-10-24 14:54:08,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:08,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:08,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:08,130 INFO L87 Difference]: Start difference. First operand 3015 states and 4612 transitions. Second operand 4 states. [2018-10-24 14:54:11,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:11,102 INFO L93 Difference]: Finished difference Result 12048 states and 18435 transitions. [2018-10-24 14:54:11,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:11,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 246 [2018-10-24 14:54:11,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:11,146 INFO L225 Difference]: With dead ends: 12048 [2018-10-24 14:54:11,147 INFO L226 Difference]: Without dead ends: 9035 [2018-10-24 14:54:11,153 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:11,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9035 states. [2018-10-24 14:54:11,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9035 to 6022. [2018-10-24 14:54:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6022 states. [2018-10-24 14:54:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6022 states to 6022 states and 9192 transitions. [2018-10-24 14:54:11,289 INFO L78 Accepts]: Start accepts. Automaton has 6022 states and 9192 transitions. Word has length 246 [2018-10-24 14:54:11,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:11,290 INFO L481 AbstractCegarLoop]: Abstraction has 6022 states and 9192 transitions. [2018-10-24 14:54:11,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:11,290 INFO L276 IsEmpty]: Start isEmpty. Operand 6022 states and 9192 transitions. [2018-10-24 14:54:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-10-24 14:54:11,299 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:11,300 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:11,300 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:11,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:11,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1056061885, now seen corresponding path program 1 times [2018-10-24 14:54:11,301 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:11,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:11,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:11,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:11,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 14:54:11,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:11,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:11,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:11,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:11,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:11,519 INFO L87 Difference]: Start difference. First operand 6022 states and 9192 transitions. Second operand 3 states. [2018-10-24 14:54:13,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:13,080 INFO L93 Difference]: Finished difference Result 17361 states and 26560 transitions. [2018-10-24 14:54:13,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:13,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2018-10-24 14:54:13,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:13,131 INFO L225 Difference]: With dead ends: 17361 [2018-10-24 14:54:13,132 INFO L226 Difference]: Without dead ends: 11341 [2018-10-24 14:54:13,143 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11341 states. [2018-10-24 14:54:13,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 11337. [2018-10-24 14:54:13,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11337 states. [2018-10-24 14:54:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11337 states to 11337 states and 15999 transitions. [2018-10-24 14:54:13,454 INFO L78 Accepts]: Start accepts. Automaton has 11337 states and 15999 transitions. Word has length 246 [2018-10-24 14:54:13,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:13,454 INFO L481 AbstractCegarLoop]: Abstraction has 11337 states and 15999 transitions. [2018-10-24 14:54:13,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand 11337 states and 15999 transitions. [2018-10-24 14:54:13,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-10-24 14:54:13,468 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:13,468 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:54:13,469 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:13,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:13,469 INFO L82 PathProgramCache]: Analyzing trace with hash -2143225122, now seen corresponding path program 1 times [2018-10-24 14:54:13,469 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:13,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:13,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:13,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:13,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:54:13,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:13,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:13,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:13,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:13,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:13,798 INFO L87 Difference]: Start difference. First operand 11337 states and 15999 transitions. Second operand 4 states. [2018-10-24 14:54:17,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:17,124 INFO L93 Difference]: Finished difference Result 41586 states and 58258 transitions. [2018-10-24 14:54:17,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:17,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 249 [2018-10-24 14:54:17,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:17,200 INFO L225 Difference]: With dead ends: 41586 [2018-10-24 14:54:17,201 INFO L226 Difference]: Without dead ends: 30251 [2018-10-24 14:54:17,222 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:17,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30251 states. [2018-10-24 14:54:17,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30251 to 21129. [2018-10-24 14:54:17,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21129 states. [2018-10-24 14:54:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21129 states to 21129 states and 28285 transitions. [2018-10-24 14:54:17,573 INFO L78 Accepts]: Start accepts. Automaton has 21129 states and 28285 transitions. Word has length 249 [2018-10-24 14:54:17,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:17,573 INFO L481 AbstractCegarLoop]: Abstraction has 21129 states and 28285 transitions. [2018-10-24 14:54:17,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:17,573 INFO L276 IsEmpty]: Start isEmpty. Operand 21129 states and 28285 transitions. [2018-10-24 14:54:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-10-24 14:54:17,597 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:17,598 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:17,598 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:17,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:17,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2086343220, now seen corresponding path program 1 times [2018-10-24 14:54:17,599 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:17,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:17,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:17,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:17,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:17,761 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 14:54:17,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:17,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:17,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:17,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:17,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:17,764 INFO L87 Difference]: Start difference. First operand 21129 states and 28285 transitions. Second operand 3 states. [2018-10-24 14:54:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:19,682 INFO L93 Difference]: Finished difference Result 42264 states and 56582 transitions. [2018-10-24 14:54:19,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:19,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2018-10-24 14:54:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:19,725 INFO L225 Difference]: With dead ends: 42264 [2018-10-24 14:54:19,726 INFO L226 Difference]: Without dead ends: 21137 [2018-10-24 14:54:19,754 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:19,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21137 states. [2018-10-24 14:54:20,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21137 to 21129. [2018-10-24 14:54:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21129 states. [2018-10-24 14:54:20,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21129 states to 21129 states and 25984 transitions. [2018-10-24 14:54:20,185 INFO L78 Accepts]: Start accepts. Automaton has 21129 states and 25984 transitions. Word has length 256 [2018-10-24 14:54:20,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:20,186 INFO L481 AbstractCegarLoop]: Abstraction has 21129 states and 25984 transitions. [2018-10-24 14:54:20,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:20,186 INFO L276 IsEmpty]: Start isEmpty. Operand 21129 states and 25984 transitions. [2018-10-24 14:54:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-10-24 14:54:20,208 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:20,208 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:20,209 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:20,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:20,209 INFO L82 PathProgramCache]: Analyzing trace with hash 118608097, now seen corresponding path program 1 times [2018-10-24 14:54:20,209 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:20,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:20,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:20,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:20,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:20,474 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-10-24 14:54:20,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:20,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:20,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:20,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:20,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:20,476 INFO L87 Difference]: Start difference. First operand 21129 states and 25984 transitions. Second operand 4 states. [2018-10-24 14:54:21,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:21,783 INFO L93 Difference]: Finished difference Result 41848 states and 51444 transitions. [2018-10-24 14:54:21,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:21,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 273 [2018-10-24 14:54:21,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:21,827 INFO L225 Difference]: With dead ends: 41848 [2018-10-24 14:54:21,827 INFO L226 Difference]: Without dead ends: 20721 [2018-10-24 14:54:21,848 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:21,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20721 states. [2018-10-24 14:54:22,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20721 to 20721. [2018-10-24 14:54:22,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20721 states. [2018-10-24 14:54:22,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20721 states to 20721 states and 24096 transitions. [2018-10-24 14:54:22,112 INFO L78 Accepts]: Start accepts. Automaton has 20721 states and 24096 transitions. Word has length 273 [2018-10-24 14:54:22,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:22,113 INFO L481 AbstractCegarLoop]: Abstraction has 20721 states and 24096 transitions. [2018-10-24 14:54:22,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:22,113 INFO L276 IsEmpty]: Start isEmpty. Operand 20721 states and 24096 transitions. [2018-10-24 14:54:22,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-10-24 14:54:22,131 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:22,131 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:22,131 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:22,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:22,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1644802394, now seen corresponding path program 1 times [2018-10-24 14:54:22,132 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:22,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:22,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:22,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:22,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:22,370 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-10-24 14:54:22,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:22,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:22,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:22,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:22,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:22,372 INFO L87 Difference]: Start difference. First operand 20721 states and 24096 transitions. Second operand 4 states. [2018-10-24 14:54:24,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:24,614 INFO L93 Difference]: Finished difference Result 81404 states and 94705 transitions. [2018-10-24 14:54:24,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:24,615 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 275 [2018-10-24 14:54:24,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:24,696 INFO L225 Difference]: With dead ends: 81404 [2018-10-24 14:54:24,696 INFO L226 Difference]: Without dead ends: 60685 [2018-10-24 14:54:24,726 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:25,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60685 states. [2018-10-24 14:54:25,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60685 to 60681. [2018-10-24 14:54:25,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60681 states. [2018-10-24 14:54:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60681 states to 60681 states and 70472 transitions. [2018-10-24 14:54:25,801 INFO L78 Accepts]: Start accepts. Automaton has 60681 states and 70472 transitions. Word has length 275 [2018-10-24 14:54:25,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:25,802 INFO L481 AbstractCegarLoop]: Abstraction has 60681 states and 70472 transitions. [2018-10-24 14:54:25,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:25,802 INFO L276 IsEmpty]: Start isEmpty. Operand 60681 states and 70472 transitions. [2018-10-24 14:54:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-10-24 14:54:25,819 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:25,819 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:54:25,820 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:25,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:25,820 INFO L82 PathProgramCache]: Analyzing trace with hash 300378130, now seen corresponding path program 1 times [2018-10-24 14:54:25,820 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:25,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:25,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:25,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:25,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-10-24 14:54:25,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:25,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:25,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:25,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:26,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:26,000 INFO L87 Difference]: Start difference. First operand 60681 states and 70472 transitions. Second operand 3 states. [2018-10-24 14:54:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:27,694 INFO L93 Difference]: Finished difference Result 165649 states and 191375 transitions. [2018-10-24 14:54:27,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:27,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2018-10-24 14:54:27,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:27,807 INFO L225 Difference]: With dead ends: 165649 [2018-10-24 14:54:27,807 INFO L226 Difference]: Without dead ends: 104970 [2018-10-24 14:54:27,857 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:27,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104970 states. [2018-10-24 14:54:29,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104970 to 104934. [2018-10-24 14:54:29,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104934 states. [2018-10-24 14:54:29,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104934 states to 104934 states and 118153 transitions. [2018-10-24 14:54:29,560 INFO L78 Accepts]: Start accepts. Automaton has 104934 states and 118153 transitions. Word has length 308 [2018-10-24 14:54:29,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:29,560 INFO L481 AbstractCegarLoop]: Abstraction has 104934 states and 118153 transitions. [2018-10-24 14:54:29,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:29,560 INFO L276 IsEmpty]: Start isEmpty. Operand 104934 states and 118153 transitions. [2018-10-24 14:54:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-10-24 14:54:29,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:29,579 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:29,579 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:29,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:29,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1533517783, now seen corresponding path program 1 times [2018-10-24 14:54:29,580 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:29,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:29,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:29,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:29,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-10-24 14:54:29,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:29,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:54:29,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:29,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:29,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:29,801 INFO L87 Difference]: Start difference. First operand 104934 states and 118153 transitions. Second operand 3 states. [2018-10-24 14:54:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:31,936 INFO L93 Difference]: Finished difference Result 263408 states and 296380 transitions. [2018-10-24 14:54:31,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:31,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2018-10-24 14:54:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:32,112 INFO L225 Difference]: With dead ends: 263408 [2018-10-24 14:54:32,112 INFO L226 Difference]: Without dead ends: 158476 [2018-10-24 14:54:32,186 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:32,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158476 states. [2018-10-24 14:54:34,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158476 to 158458. [2018-10-24 14:54:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158458 states. [2018-10-24 14:54:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158458 states to 158458 states and 178048 transitions. [2018-10-24 14:54:34,775 INFO L78 Accepts]: Start accepts. Automaton has 158458 states and 178048 transitions. Word has length 309 [2018-10-24 14:54:34,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:34,775 INFO L481 AbstractCegarLoop]: Abstraction has 158458 states and 178048 transitions. [2018-10-24 14:54:34,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 158458 states and 178048 transitions. [2018-10-24 14:54:34,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-10-24 14:54:34,797 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:34,797 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:34,797 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:34,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:34,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1717724757, now seen corresponding path program 1 times [2018-10-24 14:54:34,798 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:34,798 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:34,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:34,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:34,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:35,154 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 14:54:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 111 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-10-24 14:54:35,360 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:54:35,360 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:54:35,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:35,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:54:35,642 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-10-24 14:54:35,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:54:35,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-24 14:54:35,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:54:35,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:54:35,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:54:35,665 INFO L87 Difference]: Start difference. First operand 158458 states and 178048 transitions. Second operand 6 states. [2018-10-24 14:54:42,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:42,322 INFO L93 Difference]: Finished difference Result 454965 states and 512229 transitions. [2018-10-24 14:54:42,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 14:54:42,322 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 317 [2018-10-24 14:54:42,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:42,707 INFO L225 Difference]: With dead ends: 454965 [2018-10-24 14:54:42,707 INFO L226 Difference]: Without dead ends: 296509 [2018-10-24 14:54:42,830 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:54:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296509 states. [2018-10-24 14:54:47,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296509 to 295200. [2018-10-24 14:54:47,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295200 states. [2018-10-24 14:54:47,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295200 states to 295200 states and 321945 transitions. [2018-10-24 14:54:47,337 INFO L78 Accepts]: Start accepts. Automaton has 295200 states and 321945 transitions. Word has length 317 [2018-10-24 14:54:47,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:47,337 INFO L481 AbstractCegarLoop]: Abstraction has 295200 states and 321945 transitions. [2018-10-24 14:54:47,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:54:47,337 INFO L276 IsEmpty]: Start isEmpty. Operand 295200 states and 321945 transitions. [2018-10-24 14:54:47,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2018-10-24 14:54:47,373 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:47,373 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:54:47,374 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:47,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:47,374 INFO L82 PathProgramCache]: Analyzing trace with hash -22662564, now seen corresponding path program 1 times [2018-10-24 14:54:47,374 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:47,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:47,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:47,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:47,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:47,882 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-10-24 14:54:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-10-24 14:54:48,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:48,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:54:48,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:54:48,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:54:48,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:54:48,096 INFO L87 Difference]: Start difference. First operand 295200 states and 321945 transitions. Second operand 5 states. [2018-10-24 14:54:58,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:58,416 INFO L93 Difference]: Finished difference Result 788120 states and 855300 transitions. [2018-10-24 14:54:58,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:54:58,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 369 [2018-10-24 14:54:58,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:59,130 INFO L225 Difference]: With dead ends: 788120 [2018-10-24 14:54:59,130 INFO L226 Difference]: Without dead ends: 492922 [2018-10-24 14:54:59,282 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:54:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492922 states. [2018-10-24 14:55:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492922 to 461133. [2018-10-24 14:55:06,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461133 states. [2018-10-24 14:55:06,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461133 states to 461133 states and 499637 transitions. [2018-10-24 14:55:06,700 INFO L78 Accepts]: Start accepts. Automaton has 461133 states and 499637 transitions. Word has length 369 [2018-10-24 14:55:06,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:55:06,700 INFO L481 AbstractCegarLoop]: Abstraction has 461133 states and 499637 transitions. [2018-10-24 14:55:06,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:55:06,700 INFO L276 IsEmpty]: Start isEmpty. Operand 461133 states and 499637 transitions. [2018-10-24 14:55:06,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-10-24 14:55:06,747 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:55:06,747 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:55:06,748 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:55:06,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:55:06,748 INFO L82 PathProgramCache]: Analyzing trace with hash 621590431, now seen corresponding path program 1 times [2018-10-24 14:55:06,748 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:55:06,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:55:06,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:06,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:55:06,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:55:07,005 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-10-24 14:55:07,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:55:07,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:55:07,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:55:07,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:55:07,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:55:07,007 INFO L87 Difference]: Start difference. First operand 461133 states and 499637 transitions. Second operand 4 states. [2018-10-24 14:55:15,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:55:15,035 INFO L93 Difference]: Finished difference Result 1337409 states and 1443549 transitions. [2018-10-24 14:55:15,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:55:15,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 380 [2018-10-24 14:55:15,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:55:16,252 INFO L225 Difference]: With dead ends: 1337409 [2018-10-24 14:55:16,252 INFO L226 Difference]: Without dead ends: 876278 [2018-10-24 14:55:16,509 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:55:17,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876278 states. [2018-10-24 14:55:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876278 to 732371. [2018-10-24 14:55:37,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732371 states. [2018-10-24 14:55:38,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732371 states to 732371 states and 786049 transitions. [2018-10-24 14:55:38,080 INFO L78 Accepts]: Start accepts. Automaton has 732371 states and 786049 transitions. Word has length 380 [2018-10-24 14:55:38,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:55:38,081 INFO L481 AbstractCegarLoop]: Abstraction has 732371 states and 786049 transitions. [2018-10-24 14:55:38,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:55:38,081 INFO L276 IsEmpty]: Start isEmpty. Operand 732371 states and 786049 transitions. [2018-10-24 14:55:38,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-10-24 14:55:38,120 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:55:38,120 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:55:38,120 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:55:38,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:55:38,121 INFO L82 PathProgramCache]: Analyzing trace with hash -2012126856, now seen corresponding path program 1 times [2018-10-24 14:55:38,121 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:55:38,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:55:38,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:38,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:55:38,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:55:38,798 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-10-24 14:55:39,061 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-10-24 14:55:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 203 proven. 10 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-10-24 14:55:39,318 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:55:39,318 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:55:39,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:55:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:55:39,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:55:41,212 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-10-24 14:55:41,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:55:41,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-24 14:55:41,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:55:41,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:55:41,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:55:41,237 INFO L87 Difference]: Start difference. First operand 732371 states and 786049 transitions. Second operand 8 states. [2018-10-24 14:55:59,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:55:59,444 INFO L93 Difference]: Finished difference Result 1975978 states and 2123306 transitions. [2018-10-24 14:55:59,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 14:55:59,444 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 393 [2018-10-24 14:55:59,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:55:59,445 INFO L225 Difference]: With dead ends: 1975978 [2018-10-24 14:55:59,445 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 14:56:00,059 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 403 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2018-10-24 14:56:00,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 14:56:00,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 14:56:00,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 14:56:00,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 14:56:00,061 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 393 [2018-10-24 14:56:00,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:56:00,061 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 14:56:00,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:56:00,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 14:56:00,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 14:56:00,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 14:56:19,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:20,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:20,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:26,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:35,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:35,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:38,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:38,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:38,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:38,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:38,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:38,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:38,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:39,002 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:39,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:39,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:39,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:39,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:39,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:39,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,841 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:42,026 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:42,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:42,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:42,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:42,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:42,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:42,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:43,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:43,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:43,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:43,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:43,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:44,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:45,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:45,213 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:45,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:45,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:45,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:45,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:45,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:46,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:46,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:46,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:46,380 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:46,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:47,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:47,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:47,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:47,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:48,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:48,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:50,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:50,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:50,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:51,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:51,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:51,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:51,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:52,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:52,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:52,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:52,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:53,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:54,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:55,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:55,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:56,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:57,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:57,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:57,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:57,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:58,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:00,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:01,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:01,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:02,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:02,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:03,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:03,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:03,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:04,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:04,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:04,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:05,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:06,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:06,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:07,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:08,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:10,206 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:11,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:11,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:11,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:12,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:12,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:17,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:17,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:17,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:18,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-10-24 14:57:19,075 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-10-24 14:57:19,076 INFO L168 Benchmark]: Toolchain (without parser) took 215600.29 ms. Allocated memory was 1.5 GB in the beginning and 6.1 GB in the end (delta: 4.6 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 5.9 GB. Max. memory is 7.1 GB. [2018-10-24 14:57:19,078 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-24 14:57:19,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1156.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:57:19,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 307.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -893.7 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:57:19,081 INFO L168 Benchmark]: Boogie Preprocessor took 135.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-10-24 14:57:19,081 INFO L168 Benchmark]: RCFGBuilder took 5702.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 254.8 MB). Peak memory consumption was 254.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:57:19,082 INFO L168 Benchmark]: TraceAbstraction took 208290.41 ms. Allocated memory was 2.3 GB in the beginning and 6.1 GB in the end (delta: 3.8 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 5.7 GB. Max. memory is 7.1 GB. [2018-10-24 14:57:19,090 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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. * CACSL2BoogieTranslator took 1156.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 307.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -893.7 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5702.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 254.8 MB). Peak memory consumption was 254.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208290.41 ms. Allocated memory was 2.3 GB in the beginning and 6.1 GB in the end (delta: 3.8 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 5.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1542]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 7818. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown