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/Problem13_label04_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:06:45,062 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:06:45,064 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:06:45,077 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:06:45,077 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:06:45,078 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:06:45,079 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:06:45,081 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:06:45,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:06:45,084 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:06:45,085 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:06:45,085 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:06:45,086 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:06:45,087 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:06:45,088 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:06:45,089 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:06:45,090 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:06:45,092 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:06:45,094 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:06:45,095 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:06:45,096 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:06:45,098 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:06:45,100 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:06:45,100 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:06:45,101 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:06:45,101 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:06:45,102 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:06:45,103 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:06:45,104 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:06:45,105 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:06:45,109 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:06:45,110 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:06:45,113 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 14:06:45,141 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:06:45,141 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:06:45,142 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:06:45,142 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:06:45,146 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:06:45,147 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:06:45,147 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:06:45,147 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:06:45,147 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:06:45,148 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:06:45,149 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:06:45,149 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:06:45,149 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:06:45,149 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:06:45,150 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:06:45,150 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:06:45,150 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:06:45,150 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:06:45,150 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:06:45,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:06:45,152 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:06:45,152 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:06:45,152 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:06:45,153 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:06:45,153 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:06:45,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:06:45,153 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:06:45,153 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:06:45,209 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:06:45,222 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:06:45,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:06:45,227 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:06:45,228 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:06:45,228 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label04_false-unreach-call.c [2018-10-24 14:06:45,288 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/28b599935/6b8443fcd5dc4ba38ac1383ece2f7d91/FLAGfc06c1905 [2018-10-24 14:06:46,173 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:06:46,175 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label04_false-unreach-call.c [2018-10-24 14:06:46,216 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/28b599935/6b8443fcd5dc4ba38ac1383ece2f7d91/FLAGfc06c1905 [2018-10-24 14:06:46,237 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/28b599935/6b8443fcd5dc4ba38ac1383ece2f7d91 [2018-10-24 14:06:46,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:06:46,254 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:06:46,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:06:46,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:06:46,261 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:06:46,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:06:46" (1/1) ... [2018-10-24 14:06:46,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba4e0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:46, skipping insertion in model container [2018-10-24 14:06:46,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:06:46" (1/1) ... [2018-10-24 14:06:46,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:06:46,474 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:06:47,990 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:06:47,996 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:06:48,689 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:06:48,725 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:06:48,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48 WrapperNode [2018-10-24 14:06:48,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:06:48,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:06:48,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:06:48,728 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:06:48,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2018-10-24 14:06:48,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2018-10-24 14:06:49,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:06:49,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:06:49,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:06:49,585 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:06:49,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2018-10-24 14:06:49,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2018-10-24 14:06:49,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2018-10-24 14:06:49,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2018-10-24 14:06:49,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2018-10-24 14:06:49,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2018-10-24 14:06:49,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2018-10-24 14:06:50,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:06:50,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:06:50,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:06:50,052 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:06:50,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (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 14:06:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:06:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:06:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:07:06,344 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:07:06,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:07:06 BoogieIcfgContainer [2018-10-24 14:07:06,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:07:06,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:07:06,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:07:06,349 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:07:06,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:06:46" (1/3) ... [2018-10-24 14:07:06,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fa4f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:07:06, skipping insertion in model container [2018-10-24 14:07:06,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (2/3) ... [2018-10-24 14:07:06,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fa4f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:07:06, skipping insertion in model container [2018-10-24 14:07:06,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:07:06" (3/3) ... [2018-10-24 14:07:06,354 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label04_false-unreach-call.c [2018-10-24 14:07:06,363 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:07:06,374 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:07:06,391 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:07:06,435 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:07:06,436 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:07:06,436 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:07:06,436 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:07:06,436 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:07:06,436 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:07:06,437 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:07:06,437 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:07:06,437 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:07:06,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 14:07:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-24 14:07:06,493 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:06,494 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:07:06,496 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:06,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:06,502 INFO L82 PathProgramCache]: Analyzing trace with hash -809652462, now seen corresponding path program 1 times [2018-10-24 14:07:06,505 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:06,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:06,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:06,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:06,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:06,884 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 14:07:06,895 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 14:07:06,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:07:06,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:07:06,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:07:06,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:07:06,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:07:06,922 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-24 14:07:24,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:24,571 INFO L93 Difference]: Finished difference Result 3973 states and 7416 transitions. [2018-10-24 14:07:24,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:07:24,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-10-24 14:07:24,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:24,622 INFO L225 Difference]: With dead ends: 3973 [2018-10-24 14:07:24,622 INFO L226 Difference]: Without dead ends: 2867 [2018-10-24 14:07:24,632 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 14:07:24,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2018-10-24 14:07:24,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 1938. [2018-10-24 14:07:24,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1938 states. [2018-10-24 14:07:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 3240 transitions. [2018-10-24 14:07:24,802 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 3240 transitions. Word has length 17 [2018-10-24 14:07:24,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:07:24,803 INFO L481 AbstractCegarLoop]: Abstraction has 1938 states and 3240 transitions. [2018-10-24 14:07:24,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:07:24,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 3240 transitions. [2018-10-24 14:07:24,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-24 14:07:24,812 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:24,812 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:07:24,813 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:24,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:24,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1179752616, now seen corresponding path program 1 times [2018-10-24 14:07:24,814 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:24,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:24,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:24,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:24,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:07:25,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:07:25,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:07:25,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:07:25,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:07:25,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:07:25,156 INFO L87 Difference]: Start difference. First operand 1938 states and 3240 transitions. Second operand 4 states. [2018-10-24 14:07:40,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:40,423 INFO L93 Difference]: Finished difference Result 7100 states and 12101 transitions. [2018-10-24 14:07:40,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:07:40,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-10-24 14:07:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:40,454 INFO L225 Difference]: With dead ends: 7100 [2018-10-24 14:07:40,455 INFO L226 Difference]: Without dead ends: 5164 [2018-10-24 14:07:40,460 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 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 14:07:40,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5164 states. [2018-10-24 14:07:40,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5164 to 3540. [2018-10-24 14:07:40,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2018-10-24 14:07:40,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 5445 transitions. [2018-10-24 14:07:40,545 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 5445 transitions. Word has length 89 [2018-10-24 14:07:40,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:07:40,546 INFO L481 AbstractCegarLoop]: Abstraction has 3540 states and 5445 transitions. [2018-10-24 14:07:40,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:07:40,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 5445 transitions. [2018-10-24 14:07:40,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-10-24 14:07:40,550 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:40,550 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:07:40,550 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:40,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:40,553 INFO L82 PathProgramCache]: Analyzing trace with hash 906656731, now seen corresponding path program 1 times [2018-10-24 14:07:40,553 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:40,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:40,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:40,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:40,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:07:40,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:07:40,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:07:40,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:07:40,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:07:40,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:07:40,772 INFO L87 Difference]: Start difference. First operand 3540 states and 5445 transitions. Second operand 4 states. [2018-10-24 14:07:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:59,434 INFO L93 Difference]: Finished difference Result 13555 states and 21081 transitions. [2018-10-24 14:07:59,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:07:59,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2018-10-24 14:07:59,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:59,491 INFO L225 Difference]: With dead ends: 13555 [2018-10-24 14:07:59,491 INFO L226 Difference]: Without dead ends: 10017 [2018-10-24 14:07:59,498 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 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 14:07:59,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10017 states. [2018-10-24 14:07:59,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10017 to 6718. [2018-10-24 14:07:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6718 states. [2018-10-24 14:07:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6718 states to 6718 states and 9885 transitions. [2018-10-24 14:07:59,659 INFO L78 Accepts]: Start accepts. Automaton has 6718 states and 9885 transitions. Word has length 103 [2018-10-24 14:07:59,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:07:59,660 INFO L481 AbstractCegarLoop]: Abstraction has 6718 states and 9885 transitions. [2018-10-24 14:07:59,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:07:59,661 INFO L276 IsEmpty]: Start isEmpty. Operand 6718 states and 9885 transitions. [2018-10-24 14:07:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-24 14:07:59,668 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:59,668 INFO L375 BasicCegarLoop]: trace histogram [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 14:07:59,668 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:59,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:59,669 INFO L82 PathProgramCache]: Analyzing trace with hash -573138264, now seen corresponding path program 1 times [2018-10-24 14:07:59,669 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:59,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:59,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:59,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:59,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:00,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:00,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:08:00,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:08:00,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:08:00,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:08:00,038 INFO L87 Difference]: Start difference. First operand 6718 states and 9885 transitions. Second operand 4 states. [2018-10-24 14:08:14,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:14,074 INFO L93 Difference]: Finished difference Result 23855 states and 35012 transitions. [2018-10-24 14:08:14,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:08:14,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2018-10-24 14:08:14,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:14,142 INFO L225 Difference]: With dead ends: 23855 [2018-10-24 14:08:14,143 INFO L226 Difference]: Without dead ends: 17139 [2018-10-24 14:08:14,156 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 14:08:14,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17139 states. [2018-10-24 14:08:14,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17139 to 13037. [2018-10-24 14:08:14,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13037 states. [2018-10-24 14:08:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 18976 transitions. [2018-10-24 14:08:14,426 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 18976 transitions. Word has length 121 [2018-10-24 14:08:14,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:14,426 INFO L481 AbstractCegarLoop]: Abstraction has 13037 states and 18976 transitions. [2018-10-24 14:08:14,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:08:14,426 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 18976 transitions. [2018-10-24 14:08:14,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 14:08:14,428 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:14,429 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:08:14,430 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:14,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:14,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1137380540, now seen corresponding path program 1 times [2018-10-24 14:08:14,593 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:14,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:14,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:14,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:14,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:15,154 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-10-24 14:08:15,502 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-24 14:08:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:15,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:15,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:08:15,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:08:15,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:08:15,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:08:15,708 INFO L87 Difference]: Start difference. First operand 13037 states and 18976 transitions. Second operand 6 states. [2018-10-24 14:08:35,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:35,404 INFO L93 Difference]: Finished difference Result 41940 states and 60194 transitions. [2018-10-24 14:08:35,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:08:35,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-10-24 14:08:35,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:35,475 INFO L225 Difference]: With dead ends: 41940 [2018-10-24 14:08:35,475 INFO L226 Difference]: Without dead ends: 28905 [2018-10-24 14:08:35,496 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:08:35,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28905 states. [2018-10-24 14:08:35,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28905 to 28036. [2018-10-24 14:08:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28036 states. [2018-10-24 14:08:35,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28036 states to 28036 states and 36759 transitions. [2018-10-24 14:08:35,928 INFO L78 Accepts]: Start accepts. Automaton has 28036 states and 36759 transitions. Word has length 129 [2018-10-24 14:08:35,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:35,928 INFO L481 AbstractCegarLoop]: Abstraction has 28036 states and 36759 transitions. [2018-10-24 14:08:35,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:08:35,929 INFO L276 IsEmpty]: Start isEmpty. Operand 28036 states and 36759 transitions. [2018-10-24 14:08:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-24 14:08:35,935 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:35,936 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:08:35,936 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:35,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:35,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1646760314, now seen corresponding path program 1 times [2018-10-24 14:08:35,937 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:35,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:35,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:35,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:35,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:36,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:36,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:08:36,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:08:36,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:08:36,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:08:36,340 INFO L87 Difference]: Start difference. First operand 28036 states and 36759 transitions. Second operand 5 states. [2018-10-24 14:08:52,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:52,484 INFO L93 Difference]: Finished difference Result 70505 states and 92659 transitions. [2018-10-24 14:08:52,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:08:52,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-10-24 14:08:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:52,550 INFO L225 Difference]: With dead ends: 70505 [2018-10-24 14:08:52,550 INFO L226 Difference]: Without dead ends: 42470 [2018-10-24 14:08:52,593 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:08:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42470 states. [2018-10-24 14:08:53,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42470 to 40690. [2018-10-24 14:08:53,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40690 states. [2018-10-24 14:08:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40690 states to 40690 states and 52918 transitions. [2018-10-24 14:08:53,140 INFO L78 Accepts]: Start accepts. Automaton has 40690 states and 52918 transitions. Word has length 143 [2018-10-24 14:08:53,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:53,140 INFO L481 AbstractCegarLoop]: Abstraction has 40690 states and 52918 transitions. [2018-10-24 14:08:53,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:08:53,141 INFO L276 IsEmpty]: Start isEmpty. Operand 40690 states and 52918 transitions. [2018-10-24 14:08:53,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-24 14:08:53,144 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:53,145 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:08:53,145 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:53,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:53,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1978214106, now seen corresponding path program 1 times [2018-10-24 14:08:53,145 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:53,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:53,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:53,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:53,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:53,544 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 14:08:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:53,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:53,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:08:53,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:08:53,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:08:53,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:08:53,581 INFO L87 Difference]: Start difference. First operand 40690 states and 52918 transitions. Second operand 5 states. [2018-10-24 14:09:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:10,615 INFO L93 Difference]: Finished difference Result 104545 states and 137157 transitions. [2018-10-24 14:09:10,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:09:10,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2018-10-24 14:09:10,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:10,693 INFO L225 Difference]: With dead ends: 104545 [2018-10-24 14:09:10,694 INFO L226 Difference]: Without dead ends: 63857 [2018-10-24 14:09:10,723 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:09:10,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63857 states. [2018-10-24 14:09:11,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63857 to 63660. [2018-10-24 14:09:11,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63660 states. [2018-10-24 14:09:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63660 states to 63660 states and 82343 transitions. [2018-10-24 14:09:12,106 INFO L78 Accepts]: Start accepts. Automaton has 63660 states and 82343 transitions. Word has length 200 [2018-10-24 14:09:12,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:12,106 INFO L481 AbstractCegarLoop]: Abstraction has 63660 states and 82343 transitions. [2018-10-24 14:09:12,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:09:12,107 INFO L276 IsEmpty]: Start isEmpty. Operand 63660 states and 82343 transitions. [2018-10-24 14:09:12,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-24 14:09:12,110 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:12,111 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:09:12,111 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:12,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:12,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1221191741, now seen corresponding path program 1 times [2018-10-24 14:09:12,112 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:12,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:12,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:12,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:12,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 14:09:12,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:09:12,391 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 14:09:12,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:12,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:09:12,573 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:12,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:09:12,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:09:12,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:09:12,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:09:12,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:09:12,609 INFO L87 Difference]: Start difference. First operand 63660 states and 82343 transitions. Second operand 4 states. [2018-10-24 14:09:26,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:26,350 INFO L93 Difference]: Finished difference Result 202241 states and 262716 transitions. [2018-10-24 14:09:26,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:09:26,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 229 [2018-10-24 14:09:26,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:26,586 INFO L225 Difference]: With dead ends: 202241 [2018-10-24 14:09:26,586 INFO L226 Difference]: Without dead ends: 138583 [2018-10-24 14:09:26,653 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 229 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 14:09:26,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138583 states. [2018-10-24 14:09:29,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138583 to 110148. [2018-10-24 14:09:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110148 states. [2018-10-24 14:09:29,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110148 states to 110148 states and 138301 transitions. [2018-10-24 14:09:29,529 INFO L78 Accepts]: Start accepts. Automaton has 110148 states and 138301 transitions. Word has length 229 [2018-10-24 14:09:29,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:29,530 INFO L481 AbstractCegarLoop]: Abstraction has 110148 states and 138301 transitions. [2018-10-24 14:09:29,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:09:29,530 INFO L276 IsEmpty]: Start isEmpty. Operand 110148 states and 138301 transitions. [2018-10-24 14:09:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-10-24 14:09:29,536 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:29,537 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:09:29,537 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:29,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:29,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1638924910, now seen corresponding path program 1 times [2018-10-24 14:09:29,538 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:29,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:29,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:29,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:29,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:29,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:09:29,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:09:29,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:09:29,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:09:29,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:09:29,791 INFO L87 Difference]: Start difference. First operand 110148 states and 138301 transitions. Second operand 3 states. [2018-10-24 14:09:38,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:38,687 INFO L93 Difference]: Finished difference Result 218691 states and 274792 transitions. [2018-10-24 14:09:38,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:09:38,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 258 [2018-10-24 14:09:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:38,835 INFO L225 Difference]: With dead ends: 218691 [2018-10-24 14:09:38,835 INFO L226 Difference]: Without dead ends: 109333 [2018-10-24 14:09:38,911 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 14:09:38,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109333 states. [2018-10-24 14:09:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109333 to 107747. [2018-10-24 14:09:41,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107747 states. [2018-10-24 14:09:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107747 states to 107747 states and 126557 transitions. [2018-10-24 14:09:41,175 INFO L78 Accepts]: Start accepts. Automaton has 107747 states and 126557 transitions. Word has length 258 [2018-10-24 14:09:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:41,176 INFO L481 AbstractCegarLoop]: Abstraction has 107747 states and 126557 transitions. [2018-10-24 14:09:41,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:09:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 107747 states and 126557 transitions. [2018-10-24 14:09:41,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-10-24 14:09:41,185 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:41,185 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 14:09:41,185 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:41,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:41,186 INFO L82 PathProgramCache]: Analyzing trace with hash 654159450, now seen corresponding path program 1 times [2018-10-24 14:09:41,186 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:41,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:41,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:41,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:41,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:41,564 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 189 proven. 1 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-10-24 14:09:41,564 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:09:41,565 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 14:09:41,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:41,689 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:09:41,894 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-10-24 14:09:41,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:09:41,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 14:09:41,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:09:41,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:09:41,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:09:41,938 INFO L87 Difference]: Start difference. First operand 107747 states and 126557 transitions. Second operand 5 states. [2018-10-24 14:09:55,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:55,999 INFO L93 Difference]: Finished difference Result 302948 states and 356526 transitions. [2018-10-24 14:09:56,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:09:56,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2018-10-24 14:09:56,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:56,225 INFO L225 Difference]: With dead ends: 302948 [2018-10-24 14:09:56,226 INFO L226 Difference]: Without dead ends: 185717 [2018-10-24 14:09:56,301 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:09:56,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185717 states. [2018-10-24 14:09:57,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185717 to 177024. [2018-10-24 14:09:57,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177024 states. [2018-10-24 14:09:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177024 states to 177024 states and 198814 transitions. [2018-10-24 14:09:57,990 INFO L78 Accepts]: Start accepts. Automaton has 177024 states and 198814 transitions. Word has length 304 [2018-10-24 14:09:57,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:57,991 INFO L481 AbstractCegarLoop]: Abstraction has 177024 states and 198814 transitions. [2018-10-24 14:09:57,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:09:57,991 INFO L276 IsEmpty]: Start isEmpty. Operand 177024 states and 198814 transitions. [2018-10-24 14:09:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-10-24 14:09:57,999 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:58,000 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:09:58,000 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:58,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:58,001 INFO L82 PathProgramCache]: Analyzing trace with hash -901331647, now seen corresponding path program 1 times [2018-10-24 14:09:58,001 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:58,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:58,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:58,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:58,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:59,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:09:59,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:09:59,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:09:59,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:09:59,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:09:59,614 INFO L87 Difference]: Start difference. First operand 177024 states and 198814 transitions. Second operand 4 states. [2018-10-24 14:10:14,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:14,892 INFO L93 Difference]: Finished difference Result 445504 states and 500113 transitions. [2018-10-24 14:10:14,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:10:14,893 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 324 [2018-10-24 14:10:14,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:15,202 INFO L225 Difference]: With dead ends: 445504 [2018-10-24 14:10:15,203 INFO L226 Difference]: Without dead ends: 266108 [2018-10-24 14:10:15,288 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 14:10:15,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266108 states. [2018-10-24 14:10:18,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266108 to 253449. [2018-10-24 14:10:18,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253449 states. [2018-10-24 14:10:18,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253449 states to 253449 states and 278921 transitions. [2018-10-24 14:10:18,985 INFO L78 Accepts]: Start accepts. Automaton has 253449 states and 278921 transitions. Word has length 324 [2018-10-24 14:10:18,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:18,986 INFO L481 AbstractCegarLoop]: Abstraction has 253449 states and 278921 transitions. [2018-10-24 14:10:18,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:10:18,986 INFO L276 IsEmpty]: Start isEmpty. Operand 253449 states and 278921 transitions. [2018-10-24 14:10:18,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-10-24 14:10:18,992 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:18,992 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 14:10:18,992 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:18,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:18,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1286046502, now seen corresponding path program 1 times [2018-10-24 14:10:18,993 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:18,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:18,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:18,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:18,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:20,821 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-24 14:10:20,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:20,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:10:20,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:10:20,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:10:20,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:10:20,823 INFO L87 Difference]: Start difference. First operand 253449 states and 278921 transitions. Second operand 4 states. [2018-10-24 14:10:32,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:32,225 INFO L93 Difference]: Finished difference Result 517930 states and 569302 transitions. [2018-10-24 14:10:32,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:10:32,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 375 [2018-10-24 14:10:32,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:32,538 INFO L225 Difference]: With dead ends: 517930 [2018-10-24 14:10:32,538 INFO L226 Difference]: Without dead ends: 252626 [2018-10-24 14:10:32,654 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 14:10:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252626 states. Received shutdown request... [2018-10-24 14:10:37,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252626 to 240803. [2018-10-24 14:10:37,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240803 states. [2018-10-24 14:10:37,285 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:10:37,290 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:10:37,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:10:37 BoogieIcfgContainer [2018-10-24 14:10:37,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:10:37,291 INFO L168 Benchmark]: Toolchain (without parser) took 231039.32 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 997.6 MB in the end (delta: 423.6 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-10-24 14:10:37,292 INFO L168 Benchmark]: CDTParser took 0.25 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 14:10:37,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2471.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:10:37,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 856.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 831.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:10:37,295 INFO L168 Benchmark]: Boogie Preprocessor took 466.52 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:10:37,295 INFO L168 Benchmark]: RCFGBuilder took 16293.52 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 214.4 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 65.3 MB). Peak memory consumption was 572.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:10:37,296 INFO L168 Benchmark]: TraceAbstraction took 210944.64 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 824.2 MB). Free memory was 2.1 GB in the beginning and 997.6 MB in the end (delta: 1.1 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-24 14:10:37,301 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 2471.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 856.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 831.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 466.52 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16293.52 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 214.4 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 65.3 MB). Peak memory consumption was 572.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210944.64 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 824.2 MB). Free memory was 2.1 GB in the beginning and 997.6 MB in the end (delta: 1.1 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 60). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 210.8s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 184.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10518 SDtfs, 26311 SDslu, 3894 SDs, 0 SdLazy, 68896 SolverSat, 13934 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 152.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 575 GetRequests, 544 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=253449occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 18.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 64173 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2825 NumberOfCodeBlocks, 2825 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2811 ConstructedInterpolants, 0 QuantifiedInterpolants, 2000963 SizeOfPredicates, 1 NumberOfNonLiveVariables, 755 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 1622/1627 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown